! (in email address), Obsolete Mail Formats % (in email address), Mixing Different Mail Formats & (in email address), Mixing Different Mail Formats /etc/aliases file, Managing Mail Aliases /usr/sbin/sendmail, How Is Mail Delivered? 16450 UART, Serial Hardware 16550 UART, Serial Hardware 2.0 kernels IP accounting, Configuring the Kernel for IP Accounting IP firewalls, Original IP Firewall (2.0 Kernels) 2.2 kernels IP accounting, Configuring the Kernel for IP Accounting IP firewall chains, IP Firewall Chains (2.2 Kernels) IP masquerade, Configuring the Kernel for IP Masquerade NFS server support, The NetworkFile System, Kernel-Based NFSv2 Server Support 2.4 kernels IP accounting, Configuring the Kernel for IP Accounting IP masquerade, Configuring the Kernel for IP Masquerade netfilter and IP tables, Netfilter and IP Tables (2.4 Kernels) 8250 UART, Serial Hardware A (DNS record), The DNS Database Files absolute mail address, RFC-822 accept( ), The Socket Library access granting, Using dip, Running in Server Mode, The exports File NNTP, Restricting NNTP Access, NNTP Authorization PPP, General Security Considerations restricting, System Security, The CHAP Secrets File, The tcpd Access Control Facility, The exports File to remote files, Mounting an NFS Volume UUCP, Controlling Access to UUCP Features access network hardware interfaces access_db feature (sendmail), The access database active file (INN), The active and newsgroups files active hubs, Ethernets active.times file (/var/lib/news), The active File Address Resolution Protocol ARP addresses bang path, Obsolete Mail Formats, Mail Routing in the UUCP World broadcast, IP Addresses, Ethernet Interfaces, All About ifconfig choosing (IP), Assigning IP Addresses DNS resource record, The DNS Database Files email, Email Addresses Ethernet, Ethernets Hesiod, The DNS Database hybrid, Mixing Different Mail Formats IP, The Internet Protocol, IP Addresses loopback, IP Addresses mapping to hostnames, Reverse Lookups negotiation with PPP, Running pppd, Choosing IP Addresses, The CHAP Secrets File UUCP hostname, Site Naming alias files for Exim, Alias Files aliases C News and, The sys File email, Managing Mail Aliases, Alias Files hostname, The DNS Database, The DNS Database Files aliasing, IP (Internet Protocol), Kernel Networking Options in Linux 2.0.0 and Higher Allman, Eric, Electronic Mail amateur radio protocols, Other Types of Hardware, Kernel Networking Options in Linux 2.0.0 and Higher ampersand (in email address), Mixing Different Mail Formats anonymous UUCP, Anonymous UUCP ArcNet protocol driver, Other Network Types ARP (Address Resolution Protocol), Address Resolution display table, Checking the ARP Tables enabling/disabling, All About ifconfig proxy, The PLIP Interface, Checking the ARP Tables, Routing Through a PPP Link ARPANET, Introduction to TCP/IP Networks article command (NNTP), Reading an Article from a Group articles (news), What Is Usenet, Anyway? batching, Article Batching expiring, Expiring News Articles listing, Listing New Articles posting, Posting an Article retrieving headers/message body, Retrieving an Article Header Only async map, Link Control Options Asynchronous Control Character Map, Link Control Options ATM (Asynchronous Transfer Mode), Other Types of Hardware, The Socket Library authentication issues, System Security on remote hosts, Configuring Remote Loginand Execution with PPP, Authentication with PPP authoritative name server, Types of Name Servers, The DNS Database, The DNS Database Files authorization with NNTP, NNTP Authorization with PPP, The Point-to-Point Protocol auto-IRQ, Ethernet Autoprobing autoprobing Ethernet, Ethernet Autoprobing failure, Ethernet Autoprobing AX.25 device, A Tour of Linux Network Devices AX.25 protocol, Other Types of Hardware, The Socket Library, Kernel Networking Options in Linux 2.0.0 and Higher AX25 HOWTO, Other Types of Hardware, Kernel Networking Options in Linux 2.0.0 and Higher Aznar, Guylhem, Electronic Mail Barber, Stan, NNTP and thenntpd Daemon Basic Networking Utilities Taylor UUCP, HDB batching email, How Is Mail Delivered? news, How Does Usenet Handle News?, Article Batching BBS (Bulletin Board System), Communications Software for Modem Links Becker, Donald, Ethernet Installation Berkeley Internet Name Domain BIND Berkeley Socket Library, The Socket Library binaries, installing, Installing the Binaries BIND (Berkeley Internet Name Domain), Name Service and Resolver Configuration, Running named bind( ), The Socket Library bindery manipulation tools, Browsing and Manipulating Bindery Data Biro, Ross, Linux Networking blacklist_recipients feature (sendmail), Barring users from receiving mail BNC connector, Ethernets BNU (Basic Networking Utilities) Taylor UUCP, HDB body command (NNTP), Retrieving an Article Body Only BOOTP, Address Resolution bootup sequence, Configuring TCP/IP Networking bounced mail, How Is Mail Delivered? Brewery, Virtual, Example Network:The Virtual Brewery bridges, Ethernets broadcast address, All About ifconfig bsmtp program, How Is Mail Delivered? bulletin board, Communications Software for Modem Links Burkett, B. Scott, Sources of Information C News, Usenet History, C News active file, Delivering News, Installation, The active File archiving, Expiring News article batching, Article Batching batch parameters, Article Batching batching, Delivering News, The sys File compressing batches, Article Batching control messages in, Control Messages creating initial configuration, Installation delivering news in, Delivering News exchanging news, The sys File excluding sites, The sys File expiration of news in, Expiring News history file, Delivering News, Expiring News hostname aliases, The sys File ihave/sendme, The sys File, Article Batching in NFS, C News in an NFS Environment installing, Installation limiting a feed, The sys File, Miscellaneous Files list of current groups, The active File, Miscellaneous Files log files, Miscellaneous Files moderated groups, Miscellaneous Files newsmaster, Installation NNTP support, The sys File, nntpd Interaction with C News receiving news, Delivering News, The sys File relaynews command, Delivering News rnews command, The sys File sending news, The sys File, Article Batching spool directory, C News sys file, The sys File sys file, Installation togo file, The sys File update low water mark, The active File, Expiring News, trn Configuration updating active files, The checkgroups Message usenet, Installation UUCP, Delivering News, Article Batching cache (BIND option), The named.boot File caching-only name server, Caching-only named Configuration, Running pppd Caldera (Linux distribution), Obtaining Linux NetWare support, Caldera Support call sequence checks, The Inner Workings of uucico cancel control message, The cancel Message canonical hostname, The DNS Database, The DNS Database Files centralized mail handling, Mail Routing on the Internet, Mixing UUCP and RFC-822 chains IP firewall, IP Firewall Chains (2.2 Kernels) user-defined, User-defined chains CHAP (Challenge Handshake Authentication Protocol), The Point-to-Point Protocol, Authentication with PPP, The CHAP Secrets File character set in elm, National Character Sets chargen (internal service), The inetd Super Server chat program, PPP on Linux, Using chat to Automate Dialing PPP, Using chat to Automate Dialing SLIP, A Sample Script chat script, Using chat to Automate Dialing UUCP, The login chat checkgroups control message, The checkgroups Message, sendsys, version, and senduuname checking ARP tables, Checking the ARP Tables Ethernet interface, Checking the ARP Tables hostnames, Verifying the Name Server Setup IP routing table, Ethernet Interfaces mail queue, Mail Delivery Modes name server, Verifying the Name Server Setup network configuration, The Loopback Interface, Ethernet Interfaces connections, Displaying Connections interface, The Loopback Interface, Displaying Interface Statistics NIS, Running an NIS Server, Setting Up an NIS Client with GNU libc NNTP, nntpd Interaction with C News PPP, Debugging Your PPP Setup reachabilty, The Loopback Interface, Ethernet Interfaces routing table, Displaying the Routing Table TCP server activity, Displaying Connections UUCP, Taylor Configuration Files choosing IP addresses, Assigning IP Addresses NIS domain, Getting Acquainted with NIS NIS maps, Choosing the Right Maps UUCP hostname, Site Naming CNAME (DNS record), The DNS Database Files code, obtaining for Linux network, Obtaining Linux, Where to Get the Code sendmail, Installing sendmail collisions (Ethernet), Ethernets Collyer, Geoff, Usenet History com domain, How DNS Works COM port, The Serial Device Special Files comp.mail.uucp, ManagingTaylor UUCP comp.os.linux.admin, Linux Usenet Newsgroups comp.os.linux.announce, Linux Usenet Newsgroups comp.os.linux.development, Linux Usenet Newsgroups comp.os.linux.help, Linux Usenet Newsgroups comp.os.linux.misc, Linux Usenet Newsgroups comp.os.linux.networking, Linux Usenet Newsgroups Compressed Serial Line IP CSLIP configuration files INN (Internet News), INN Configuration Files sendmail, Overview of Configuration Files Taylor UUCP, Taylor Configuration Files UUCP, UUCP Configuration Files configuring C News, Installation on a LAN, C News in an NFS Environment caching-only name server, Caching-only named Configuration default domain, Configuring Name Server Lookups Using resolv.conf dip program, Using dip DNS over SLIP/PPP, Caching-only named Configuration elm (electronic mail), Configuring elm Ethernet, Kernel Options in Linux 2.0 and Higher, Ethernet Installation, Ethernet Autoprobing, Ethernet Interfaces Exim Exim hostname, Setting the Hostname resolution, Writing hosts and networks Files, Name Service and Resolver Configuration IP accounting, Configuring IP Accounting IP gateways, Configuring a Gateway IP masquerade, Configuring IP Masquerade IPX, Kernel Networking Options in Linux 2.0.0 and Higher kernel, Kernel Options in Linux 2.0 and Higher for IP accounting, Configuring the Kernel for IP Accounting with IP firewall, Setting Up Linux for Firewalling for IP masquerade, Configuring the Kernel for IP Masquerade loopback interface device, The Loopback Interface name server, Running named lookups, Configuring Name Server Lookups Using resolv.conf networks hardware, Configuringthe NetworkingHardware interfaces, Interface Configuration for IP services, The inetd Super Server newsfeeds, Configuring Newsfeeds newsgroups, Configuring Newsgroups newsreader, Newsreader Configuration NFS, Kernel Options in Linux 2.0 and Higher NIS, The Network Information System, Running an NIS Server, Setting Up an NIS Client with GNU libc NNTP, NNTP and thenntpd Daemon PLIP, Kernel Options in Linux 2.0 and Higher, The PLIP Driver, The PLIP Interface PPP, Kernel Options in Linux 2.0 and Higher, The SLIP and PPP Interfaces, The Point-to-Point Protocol, Running pppd remote login and execution, Configuring Remote Loginand Execution sendmail, Sendmail for SMTP, Two Example sendmail.mc Files serial port, Using the Configuration Utilities SLIP, Kernel Options in Linux 2.0 and Higher, The SLIP and PPP Interfaces, Serial Line IP server, Running in Server Mode ssh command, Installing and Configuring ssh Taylor UUCP, ManagingTaylor UUCP Usenet news, Installation connect( ), The Socket Library control.ctl file (INN), The control.ctl file copyright information, Linux Network Administrator's Guide, Second Edition Copyright Information Corel (Linux distribution), Obtaining Linux Cox, Alan, Linux Networking, Original IP Firewall (2.0 Kernels), IPX and Linux creating DNS zones, Reverse Lookups NIS maps, Running an NIS Server subdomains, How DNS Works subnets, Creating Subnets, Reverse Lookups cron, Maintaining Your System expiring mail from, Expiring News running Exim via, Mail Delivery Modes newsdaily in, Maintenance Tools and Tasks nnmaster via, nn Configuration CSLIP (Compressed Serial Line IP) protocol, IP Over Serial Lines, SLIP Operation, Running in Server Mode, The Point-to-Point Protocol ctlinnd command (INN), Managing INN: The ctlinnd Command D-Link pocket adaptor, Ethernet Installation daemons, The inetd Super Server wrapping via tcpd, The tcpd Access Control Facility datagram types, ICMP protocol, ICMP datagram types datagrams, TCP/IP Networks, The Internet Protocol fragmentation of, Accounting by Service Port IP chains vs. netfilter, Netfilter and IP Tables (2.4 Kernels) IP filtering, What Is IP Filtering? masquerading, IP Masquerade and Network Address Translation stages of processing, Three Ways We Can Do Filtering Davies, David C., Ethernet Installation daytime (internal service), The inetd Super Server dbmload program, Running an NIS Server DDI (Device Driver Interface), Different Streaks of Development Debian (Linux distribution), Obtaining Linux debugging DNS databases, Other Useful Tools PPP setup, Debugging Your PPP Setup UUCP setup, uucico Command-line Options default email route, Mail Routing in the UUCP World default IP route IP (Internet Protocol), default route delegating DNS subdomains, How DNS Works, Reverse Lookups IP subnets, Subnetworks delivering email, How Is Mail Delivered? news, How Does Usenet Handle News?, Delivering News demand dialing, Demand Dialing denial of service attacks, Methods of Attack Dent, Arthur, Running in Server Mode /dev/cua*, Accessing Serial Devices /dev/modem, The Serial Device Special Files /dev/ttyS*, Accessing Serial Devices Device Driver Interface (DDI), Different Streaks of Development device drivers, Configuringthe NetworkingHardware device files, Configuringthe NetworkingHardware devices Linux network, A Tour of Linux Network Devices major/minor numbers, Configuringthe NetworkingHardware serial, Configuring the Serial Hardware supporting IPX, Network Devices Supporting IPX Dial-Up List (DUL), Protecting Against Mail Spam dialin device, Accessing Serial Devices dialing demand, Demand Dialing persistent, Persistent Dialing dialout device, Accessing Serial Devices dialup IP, Serial Line IP dip program, Using dip diphosts file, Running in Server Mode diplogin command, Running in Server Mode diskless clients, Address Resolution DISPLAY (environment variable), Introduction to TCP/IP Networks displaying active connections, Displaying Connections ARP table, Checking the ARP Tables interface configuration, All About ifconfig statistics, Displaying Interface Statistics IP routing table, Ethernet Interfaces, Displaying the Routing Table irtt, Displaying the Routing Table NIS map nicknames, Getting Acquainted with NIS UUCP configuration, Taylor Configuration Files DNS (Domain Name System), Resolving Host Names checking, Verifying the Name Server Setup configuring server, Running named converting /etc/hosts, Other Useful Tools databases, The DNS Database, The DNS Database Files debugging databases, Other Useful Tools lookup, Name Lookups with DNS query, Name Lookups with DNS resolver and, The nsswitch.conf File resource record, The DNS Database, The DNS Database Files reverse mapping, Reverse Lookups root name servers, Writing the Master Files, Verifying the Name Server Setup RR DNS, resource record time to live, Name Lookups with DNS, The DNS Database Files tools, Other Useful Tools zones, How DNS Works, The DNS Database Files dnswalk program, Other Useful Tools documentation (Linux) commercial, Documentation Available Commercially via FTP, Documentation Available via FTP via WWW, Documentation Available via WWW DOMAIN macro definition, DOMAIN domain name servers, Types of Name Servers Domain Name System DNS domainname command, Setting the Hostname, Getting Acquainted with NIS domains, How DNS Works mail routing, Mixing UUCP and RFC-822 names, How DNS Works default, Configuring Name Server Lookups Using resolv.conf NIS versus DNS, Setting the Hostname NIS, Getting Acquainted with NIS, Setting Up an NIS Client with GNU libc top-level, How DNS Works dotted decimal notation, The Internet Protocol dotted quad notation, The Internet Protocol, IP Addresses drivers ArcNet, Other Network Types D-Link, Ethernet Installation Ethernet, Ethernet Installation FDDI, Other Network Types PLIP, The PLIP Driver PPP, The PPP and SLIP Drivers, PPP on Linux SLIP, The PPP and SLIP Drivers Token Ring, Other Network Types Dryak, Ales, IPX and Linux, NetWare Server Emulation dummy interface configuration, The Dummy Interface dynamic routing, The Routing Table eavesdropping programs, Methods of Attack Echo Request/Echo Response messages, Link Control Options echo service, The Services and Protocols Files edu domain, How DNS Works Ekwall, Bjørn, Ethernet Installation electronic mail email elm (electronic mail), Configuring elm national character sets, National Character Sets email, Electronic Mail address formats, Email Addresses aliases, Managing Mail Aliases, Alias Files bang path notation, Obsolete Mail Formats, Mail Routing in the UUCP World barring users from receiving, Barring users from receiving mail batching, How Is Mail Delivered? bounced, How Is Mail Delivered? centralizing, Mail Routing on the Internet, Mixing UUCP and RFC-822 composing, How Is Mail Delivered? default route, Mail Routing in the UUCP World delivering, How Is Mail Delivered? directing to a file, Delivering Messages to Local Addresses domain-based routing, Mail Routing on the Internet, Mixing UUCP and RFC-822 elm, Configuring elm Exim, Electronic Mail, Acknowledgments Exim feeding to a command, Delivering Messages to Local Addresses forwarding, Forwarding, Alias Files gateway, Mail Routing on the Internet managing spam, Managing Unwanted or Unsolicited Mail (Spam), Protecting Against Mail Spam map files, Mixing UUCP and RFC-822 maps, Mail Routing in the UUCP World message body, What Is a Mail Message? message format, What Is a Mail Message? message headers, What Is a Mail Message? multimedia, Electronic Mail over UUCP, How Is Mail Delivered? paths file, Mail Routing in the UUCP World, Mixing UUCP and RFC-822 queue, Forcing a Remote Host to Process its Mail Queue, Getting EximUp and Running, Mail Delivery Modes routing, How Does Mail Routing Work? between Internet and UUCP, Mail Routing on the Internet domain-based, Mixing UUCP and RFC-822 on Internet, Mail Routing on the Internet smart host, Mail Routing in the UUCP World UUCP networks, Mail Routing in the UUCP World sendmail, Electronic Mail unsolicited, Managing Unwanted or Unsolicited Mail (Spam), Protecting Against Mail Spam virtual hosting, Configuring Virtual Email Hosting envelope, What Is a Mail Message? environment variables DISPLAY, Introduction to TCP/IP Networks NNTPSERVER, tin Configuration resolver, Resolver environment variables Eriksson, Peter, The Network Information System errors, checking for, Maintaining Your System establishing the connection, Using chat to Automate Dialing /etc/aliases file, Getting Acquainted with NIS, Alias Files /etc/dip.pid file, A Sample Script /etc/diphosts file, Running in Server Mode /etc/exports file, The exports File /etc/fstab file, Mounting the /proc Filesystem, Mounting an NFS Volume /etc/group file, Getting Acquainted with NIS, Using the passwd and group Maps /etc/host file, Resolver Robustness /etc/host.conf file, Resolver Robustness /etc/hosts file, Writing hosts and networks Files, The Network Information System, Getting Acquainted with NIS /etc/hosts.allow file, The tcpd Access Control Facility /etc/hosts.deny file, The tcpd Access Control Facility /etc/inetd.conf file, Providing UUCP Accounts, Running Exim /etc/named.boot file, Running named /etc/networks file, Writing hosts and networks Files, Getting Acquainted with NIS /etc/news/incoming.conf file (INN), The incoming.conf file /etc/nntpserver file, tin Configuration /etc/nsswitch.conf file, Choosing the Right Maps /etc/passwd file, PPP Server, The inetd Super Server, Getting Acquainted with NIS, Using the passwd and group Maps real user names, Installation /etc/ppp/chap-secrets file, PAP Versus CHAP, The CHAP Secrets File /etc/ppp/options file, Using Options Files, General Security Considerations, PAP Versus CHAP /etc/ppp/pap-secrets file, PAP Versus CHAP, The PAP Secrets File /etc/protocols file, The Services and Protocols Files, Getting Acquainted with NIS /etc/rpc file, Getting Acquainted with NIS /etc/services file, The Services and Protocols Files, Getting Acquainted with NIS, Running Exim /etc/shadow file, PPP Server, Using NIS with Shadow Support /etc/ssh/ssh_config file, The ssh client /etc/ssh/ssh_host_key file, The ssh daemon /etc/ssh/ssh_host_key.pub file, The ssh daemon /etc/yp.conf file, Setting Up an NIS Client with GNU libc /etc/ypserv.securenets file, NIS Server Security eth0 (Ethernet interface), Ethernet Interfaces eth1 device, A Tour of Linux Network Devices Ethernet addresses, Ethernets, Address Resolution versus IP address, The Internet Protocol autoprobing, Ethernet Autoprobing Becker drivers, Ethernet Installation cards, Configuringthe NetworkingHardware collisions, Ethernets configurating interface, Ethernet Interfaces drawbacks, Ethernets installation, Ethernet Installation promiscuous mode, All About ifconfig thick/thin, Ethernets through parallel port, Ethernet Installation twisted pair, Ethernets exchanging email, How Is Mail Delivered? news, What Is Usenet, Anyway? exclamation point (in email address), Obsolete Mail Formats Exim, Electronic Mail alias files, Alias Files check mail queue, Mail Delivery Modes compiling, Compiling Exim configuration files, Getting EximUp and Running options, Miscellaneous config Options daemon mode, Getting EximUp and Running delivering messages to local addresses, Delivering Messages to Local Addresses directing mail to a file, Delivering Messages to Local Addresses directors, Message Routing and Delivery feeding mail to a command, Delivering Messages to Local Addresses filter files, Forwarding forwarding mail, Forwarding log files, If Your Mail Doesn't Get Through, Mail Delivery Modes mail delivery modes, Mail Delivery Modes mailing lists, Mailing Lists queuing mail, Mail Delivery Modes routers, Message Routing and Delivery routing messages in, Routing Messages running, Running Exim symbolic links to, Getting EximUp and Running transports, Message Routing and Delivery troubleshooting, If Your Mail Doesn't Get Through user mailboxes, Local users utilities, Getting EximUp and Running UUCP setup, UUCP Setup expect program, Using chat to Automate Dialing expire.ctl file (INN), The expire.ctl file exports file, The exports File External Data Representation (XDR), Remote Procedure Call FDDI (Fiber Distributed Data Interface), Other Types of Hardware, Other Network Types FEATURE macro definition, FEATURE FHS (File Hierarchy Standard), File System Standards Fiber Distributed Data Interface (FDDI), Other Types of Hardware, Other Network Types FidoNet, Communications Software for Modem Links file sharing, The NetworkFile System, IPX and the NCP Filesystem File System Standard, File System Standards filter files, Forwarding filtering, Acknowledgments masquerade IP, What Is IP Filtering? stages of, Three Ways We Can Do Filtering finger daemon, The inetd Super Server wrapping via tcpd, The tcpd Access Control Facility fingerprints, Using ssh firewalls, Dealing with Private IP Networks, What Is a Firewall? IP chains, IP Firewall Chains (2.2 Kernels) restoring/saving, The ipchains support scripts methods of attack, Methods of Attack netfilter, Netfilter and IP Tables (2.4 Kernels) netmask specification, A naïve example original IP, Original IP Firewall (2.0 Kernels) sample configuration, A Sample Firewall Configuration security, TCP/IP Firewall TCP/IP, TCP/IP Firewall testing a configuration, Testing a Firewall Configuration TOS bit manipulation, TOS Bit Manipulation user-defined chains, User-defined chains warning, TCP/IP Firewall flooding algorithm, How Does Usenet Handle News? .forward file, Delivering Messages to Local Addresses forwardfile director, Mailing Lists forwarding IP, The Internet Protocol, Kernel Networking Options in Linux 2.0.0 and Higher mail, Forwarding, Alias Files FRAD (Frame Relay Access Device), Other Types of Hardware fragmentation, datagram, Accounting by Service Port Frampton, Steve, Sources of Information FSSTND (File System Standard), File System Standards FTP (File Transfer Protocol), location of Linux code, Where to Get the Code full user names, Installation gated command, The Routing Table, The PLIP Interface, Routing Through a PPP Link gateways, The Internet Protocol, Gateways configuring, Configuring a Gateway email, Mail Routing on the Internet routing networks through, Routing Through a Gateway get command, The get command gethostbyaddr( ), Resolving Host Names, The Resolver Library, Choosing the Right Maps gethostbyname( ), Resolving Host Names, The Resolver Library, Choosing the Right Maps uucico and, The Inner Workings of uucico getpwnam( ), The Client Side of NIS getpwuid( ), The Client Side of NIS getservbyname( ), Choosing the Right Maps glue records, The DNS Database GNU Free Documentation License (FDL), Linux Network Administrator's Guide, Second Edition Copyright Information GNU libc (NIS support), The Network Information System, Using NIS with Shadow Support Goldt, Sven, Sources of Information gov domain, How DNS Works GPG (GNU Privacy Guard), The control.ctl file Groucho Marx University (GMU), Introduction to TCP/IP Networks, Subnetworks group command (NNTP), Selecting a Group on Which to Operate ham radio, Other Types of Hardware, Address Resolution handshake, hardware, Serial Hardware, The stty Command, Running pppd Hankins, Greg, Configuring the Serial Hardware hardware configuration of networking, Configuringthe NetworkingHardware configuring serial, Configuring the Serial Hardware handshake, Serial Hardware, The stty Command, Running pppd Harper, John D., Sources of Information Hazel, Philip, About This Book, Electronic Mail HDB Taylor UUCP, HDB HDLC (High-Level Data Link Control) protocol, The Point-to-Point Protocol head command (NNTP), Retrieving an Article Header Only help, online, Online Linux Support Hesiod addresses, The DNS Database HoneyDanBer Taylor UUCP, HDB host keys, The ssh daemon host.conf file, The host.conf File, The Network Information System hostat command, hoststat hostcvt program, Other Useful Tools hostname aliases, The DNS Database Files ambiguous, Mail Routing in the UUCP World canonical, The DNS Database, The DNS Database Files domain name and, How DNS Works fully qualified, How DNS Works lookup, Name Lookups with DNS, Verifying the Name Server Setup mapping to addresses, Resolving Host Names obtaining from address, Reverse Lookups resolution, Resolving Host Names, Writing hosts and networks Files, Name Service and Resolver Configuration, The Network Information System setting, Setting the Hostname UUCP, Site Naming hosts, History standalone, The Dummy Interface, IP Alias virtual, IP Alias hosts file, Writing hosts and networks Files converting to BIND master files, Other Useful Tools hosts.byaddr file, Getting Acquainted with NIS hosts.byname file, Getting Acquainted with NIS HOWTOs, Sources of Information AX25, Other Types of Hardware, Kernel Networking Options in Linux 2.0.0 and Higher electronic mail, Electronic Mail IPCHAINS, IP Firewall Chains (2.2 Kernels) IPTABLES, More About Network Address Translation IPX, NetWare Server Emulation Networking, Kernel Networking Options in Linux 2.0.0 and Higher PACKET-FILTERING, Netfilter and IP Tables (2.4 Kernels) PPP, PPP on Linux Serial, Configuring the Serial Hardware UUCP, ManagingTaylor UUCP hybrid addresses, Mixing Different Mail Formats IBM Token Ring networks, Other Types of Hardware ICMP (Internet Control Message Protocol) datagram accounting, Accounting of ICMP Datagrams datagram types, ICMP datagram types Port Unreachable message, The Internet Control Message Protocol Redirect message, The Internet Control Message Protocol IETF (Internet Engineering Task Force), More on Ports ifconfig command, Interface Configuration for IP, Ethernet Interfaces, All About ifconfig, SLIP Operation, Passive Collection of Accounting Data ihave command (NNTP), NNTP and thenntpd Daemon, Pushing a News Article onto a Server, nntpd Interaction with C News ihave/sendme protocol (news), How Does Usenet Handle News? in-addr.arpa domain, Reverse Lookups incoming.conf file (INN), The incoming.conf file inetd super server, The inetd Super Server, Remote Procedure Call running Exim under, Running Exim inetd.conf file, The inetd Super Server inews command, Delivering News information on Linux, Sources of Information initializing networking, Configuring TCP/IP Networking INN (Internet News), Usenet History configuration files, INN Configuration Files configuring newsfeeds, Configuring Newsfeeds newsgroups, Configuring Newsgroups control messages, handling, Handling Control Messages expiring news articles, Expiring News Articles global parameters, Global Parameters ihave protocol, Some INN Internals installing, Installing INN managing, Managing INN: The ctlinnd Command newsreaders, Newsreaders and INN controlling access, Controlling Newsreader Access NNTP and, NNTP and thenntpd Daemon, Some INN Internals rnews, Some INN Internals running, Running INN inn source package, Running INN inn.conf file (INN), The inn.conf file innd command (INN), Some INN Internals innxmit command (INN), Some INN Internals, The nntpsend.ctl file installing INN (Internet News), Installing INN network binaries, Installing the Binaries sendmail, Installing sendmail interfaces, Networking Interfaces, Configuringthe NetworkingHardware, A Tour of Linux Network Devices alias, IP Alias AX.25, A Tour of Linux Network Devices configuration of, Interface Configuration for IP configuring IPX, Configuring IPX Interfaces dummy, The Dummy Interface Ethernet, A Tour of Linux Network Devices, Ethernet Interfaces loopback, A Tour of Linux Network Devices, The Loopback Interface netmask, Subnetworks, Creating Subnets, Ethernet Interfaces, All About ifconfig PLIP, A Tour of Linux Network Devices, The PLIP Interface PPP, A Tour of Linux Network Devices, The SLIP and PPP Interfaces, Running pppd SLIP, A Tour of Linux Network Devices, The SLIP and PPP Interfaces statistics, displaying, Displaying Interface Statistics Token Ring, A Tour of Linux Network Devices internationalization for elm, National Character Sets Internet, Introduction to TCP/IP Networks connecting to, Serial Line IP, The Point-to-Point Protocol, Running pppd daemon, The inetd Super Server email routing, Mail Routing on the Internet versus internetworking, The Internet Protocol Internet Control Message Protocol ICMP Internet Datagram Protocol (IDP), Xerox, Novell, and History Internet News INN (Internet News) Internet Protocol IP Internet Protocol Control Protocol IPCP internetworking, The Internet Protocol, Gateways IP (Internet Protocol), The Internet Protocol addresses, The Internet Protocol, IP Addresses assigning, Assigning IP Addresses hostname and, Resolving Host Names, Reverse Lookups negotiation in PPP, Running pppd, Choosing IP Addresses, The CHAP Secrets File private, Assigning IP Addresses versus hostname, The Internet Protocol alias configuration, IP Alias aliasing, Kernel Networking Options in Linux 2.0.0 and Higher broadcast address, Ethernet Interfaces, All About ifconfig default route, IP Addresses, Routing Through a Gateway dialup, Serial Line IP, The Point-to-Point Protocol dynamic routing, The Routing Table filtering, What Is IP Filtering? Firewall Chains, IP Firewall Chains (2.2 Kernels) forwarding, The Internet Protocol, Kernel Networking Options in Linux 2.0.0 and Higher gateways, The Internet Protocol, Routing Through a Gateway interface, Configuringthe NetworkingHardware configuration, Interface Configuration for IP IPv4, The Internet Protocol IPv6, Different Streaks of Development masquerade, IP Masquerade and Network Address Translation metric, All About ifconfig values, Metric Values MTU, Kernel Networking Options in Linux 2.0.0 and Higher multicast addresses, All About ifconfig netmask, Subnetworks, Creating Subnets, Ethernet Interfaces, All About ifconfig Network Control Protocol (PPP), The Point-to-Point Protocol networks, IP Networks, Reverse Lookups parallel line PLIP (Parallel Line IP) protocol private addresses, IP Addresses routing, The Internet Protocol, IP Routing, Kernel Networking Options in Linux 2.0.0 and Higher, Routing Through a Gateway effect of netmask, The Routing Table protocols, The Routing Table Redirect message (ICMP), The Internet Control Message Protocol table, The Routing Table, Ethernet Interfaces, Displaying the Routing Table serial line, Serial Line IP, The Point-to-Point Protocol SLIP (Serial Line IP) protocol source routing, Kernel Networking Options in Linux 2.0.0 and Higher subnets, Subnetworks, Kernel Networking Options in Linux 2.0.0 and Higher, Routing Through a Gateway, Reverse Lookups TOS (Type Of Service) bits, TOS Bit Manipulation IP accounting, Kernel Networking Options in Linux 2.0.0 and Higher by address, Accounting by Address configuring, Configuring IP Accounting flushing the rules, Flushing the Ruleset of ICMP datagrams, Accounting of ICMP Datagrams kernel configuration, Configuring the Kernel for IP Accounting passive collection, Passive Collection of Accounting Data by protocol, Accounting by Protocol resetting the counters, Resetting the Counters by service port, Accounting by Service Port using results of, Using IP Accounting Results ipchains command, The ipchains Utility, Using ipchains configuring IP accounting, Configuring IP Accounting configuring IP masquerade, Configuring IP Masquerade firewall options, ipchains Command Syntax listing accounting data with, Listing Accounting Data with ipchains listing rules with, Listing Our Rules with ipchains setting the TOS bits, Setting the TOS Bits Using ipfwadm or ipchains support scripts, The ipchains support scripts IPCHAINS-HOWTO, IP Firewall Chains (2.2 Kernels) ipchains-restore command, The ipchains support scripts ipchains-save command, The ipchains support scripts IPCP (Internet Protocol Control Protocol), The Point-to-Point Protocol, IP Configuration Options ipfwadm command, The ipfwadm Utility, Original IP Firewall (2.0 Kernels) configuring IP accounting, Configuring IP Accounting configuring IP masquerade, Configuring IP Masquerade firewall options, Summary of ipfwadm Arguments listing accounting data with, Listing Accounting Data with ipfwadm listing rules with, Listing our rules setting the TOS bits, Setting the TOS Bits Using ipfwadm or ipchains ipfwadm-wrapper command, The ipchains Utility, Using ipchains, The ipchains support scripts iptables command, The iptables Utility configuring IP accounting, Configuring IP Accounting configuring IP masquerade, Configuring IP Masquerade extensions, Extensions firewall options, Using iptables listing accounting data with, Listing Accounting Data with iptables setting the TOS bits, Setting the TOS Bits Using iptables IPTABLES-HOWTO, More About Network Address Translation IPv4 (Internet Protocol), The Internet Protocol IPv6 (Internet Protocol), Different Streaks of Development IPX (Internet Packet eXchange), The Socket Library, IPX and the NCP Filesystem interface configuration tools, IPX Interface Configuration Tools internal networks, Internal IPX Networks and Routing kernel configuration, Configuring the Kernel for IPXand NCPFS PPP network protocol, Kernel Options in Linux 2.0 and Higher routing, Kernel Networking Options in Linux 2.0.0 and Higher, Configuring an IPX Router tools nsend, Send Messages to NetWare Users pqlist, Managing Print Queues slist, Server List IPX-HOWTO, NetWare Server Emulation ipxd command, Configuring an IPX Router ipx_configure command, The ipx_configure Command ipx_interface command, The ipx_interface Command ipx_route command, Static IPX Routing Using the ipx_route Command IRC Network, OpenProjects, Online Linux Support IRQ (Interrupt Request), Configuringthe NetworkingHardware, Ethernet Autoprobing setting, All About ifconfig irtt parameter, Displaying the Routing Table ISO-8859-1, National Character Sets jobs (UUCP), UUCP Transfers and Remote Execution junk newsgroup, Delivering News Kempen, Fred van, Linux Networking kermit (terminal program), Communications Software for Modem Links kernel version numbering, Kernel Configuration kernels configuration, Kernel Configuration configured with IP firewall, Setting Up Linux for Firewalling configuring for IPX and NCPFS, Configuring the Kernel for IPXand NCPFS configuring for masquerade, Configuring the Kernel for IP Masquerade NFSv2/NFSv3 server support, Kernel-Based NFSv2 Server Support key fingerprints, Using ssh keys host, The ssh daemon private, The ssh daemon, The ssh client public, The ssh daemon, The ssh client Kirch, Olaf, The NetworkFile System, Kernel-Based NFSv2 Server Support Kukuk, Thorsten, The Network Information System LANs Local Area Networks Lapsley, Phil, NNTP and thenntpd Daemon Latin-1 character set, National Character Sets LCP (Link Control Protocol), The Point-to-Point Protocol echo messages, Link Control Options options, Link Control Options LDP (Linux Documentation Project), Sources of Information leaf sites, Mail Routing in the UUCP World leafnode (NNTP cache program), Reading an Article from a Group Learning Debian GNU/Linux, Documentation Available Commercially Learning Red Hat Linux, Documentation Available Commercially Lendecke, Volker, IPX and Linux libc6 (NIS support), The Network Information System, Using NIS with Shadow Support Libes, Don, Using chat to Automate Dialing lilo command, Ethernet Autoprobing line discipline, Introduction to Serial Devices, SLIP Operation, PPP on Linux Link Control Protocol LCP Linux documentation, Documentation Available via FTP HOWTOs, Sources of Information networks, Linux Networking obtaining code for, Obtaining Linux, Where to Get the Code sources of information on, Sources of Information Linux distributions, Obtaining Linux standard base, Standard Linux Base Linux Documentation Project, Sources of Information Linux in a Nutshell, Documentation Available Commercially Linux Journal, Linux Journal and Linux Magazine Linux kernel version numbering of, Kernel Configuration Linux Magazine, Linux Journal and Linux Magazine Linux Standard Base (LSB), Standard Linux Base Linux User Groups (LUG), Linux User Groups linux-kernel mailing list, Linux Mailing Lists linux-net mailing list, Linux Mailing Lists linux-ppp mailing list, Linux Mailing Lists list active command (NNTP), Listing Active Groups list command (NNTP), Listing Available Groups listen( ), The Socket Library listgroup command (NNTP), Listing Articles in a Group lo (loopback interface), The Loopback Interface local addresses, Delivering Messages to Local Addresses Local Area Networks (LANs), TCP/IP Networks connecting, Routing Through a PPP Link hardware for, Ethernets news, C News in an NFS Environment passwords, Using the passwd and group Maps remote login, Configuring Remote Loginand Execution local macro definitions, Local macro definitions localgroups file (/etc/news), Miscellaneous Files localhost (dummy hostname), The Loopback Interface local_domains configuration variable, Routing Messages LOCAL_NET_CONFIG macro definition, Configure mail routing for local hosts, Ruleset Semantics LOCAL_RULE_0 sendmail ruleset, Ruleset Semantics LOCAL_RULE_1 sendmail ruleset, Ruleset Semantics LOCAL_RULE_2 sendmail ruleset, Ruleset Semantics LOCAL_RULE_3 sendmail ruleset, Ruleset Semantics lock files and PPP, Using Options Files Log file (UUCP), Log Files and Debugging log files, debugging, Log Files and Debugging login command and NIS maps, Using the passwd and group Maps looking up addresses, Reverse Lookups loopback address, IP Addresses interface device, A Tour of Linux Network Devices configuring, The Loopback Interface lpd (line printer daemon), Using nprint with the Line Printer Daemon LSB (Linux Standard Base), Standard Linux Base Lu, H.J., Kernel-Based NFSv2 Server Support LUG (Linux User Groups), Linux User Groups m4 macro processor, The sendmail.cf and sendmail.mc Files configuring sendmail options, Configuring sendmail Options macro definitions, sendmail.mc file, Typically Used sendmail.mc Parameters mail email Mail Abuse Protection System (MAPS), Protecting Against Mail Spam Mail Exchanger (DNS record), Mail Routing on the Internet mail spool, managing, Managing the Mail Spool mail transport agent (MTA), How Is Mail Delivered? mail user agent (MUA), How Is Mail Delivered? mailbox files, Local users MAILER macro definition, Defining mail transport protocols mailing lists, Linux Mailing Lists in Exim, Mailing Lists mailpaths file (/etc/news), Miscellaneous Files mailstats command, mailstats maintenance, system, Maintaining Your System makedbm program, Running an NIS Server manual configuration Ethernet, Ethernet Autoprobing PLIP, The PLIP Driver maps, Usenet, Mail Routing in the UUCP World, Mixing UUCP and RFC-822 Marx, Groucho, Introduction to TCP/IP Networks masquerade configuration, Configuring IP Masquerade how it works, IP Masquerade and Network Address Translation kernel configuration, Configuring the Kernel for IP Masquerade listing rules, Configuring IP Masquerade name server lookups, Handling Name Server Lookups setting timing parameters for, Setting Timing Parameters for IP Masquerade side effects of, Side Effects and Fringe Benefits master servers, Getting Acquainted with NIS, Running an NIS Server Maximum Receive Unit (MRU), Link Control Options Maximum Transfer Unit (MTU), Networking Interfaces, Link Control Options Maximum Transmission Unit (MTU), All About ifconfig IP, Kernel Networking Options in Linux 2.0.0 and Higher Meer, Sven van der, Sources of Information messages, email, What Is a Mail Message? metric values (for routing table entries), Metric Values mgetty program, Providing UUCP Accounts Middelink, Pauline, Original IP Firewall (2.0 Kernels) mil domain, How DNS Works MIME (Multipurpose Internet Mail Extensions), What Is a Mail Message? format, National Character Sets minicom (terminal program), Communications Software for Modem Links modems demand dialing, Demand Dialing links communication software for, Communications Software for Modem Links configuring via dip, The modem commands persistent dialing, Persistent Dialing Morris, G. Allan, Kernel-Based NFSv2 Server Support mount command, The NetworkFile System mountd daemon, The exports File mounting an NFS volume, Mounting an NFS Volume the proc filesystem, Mounting the /proc Filesystem MRU (Maximum Receive Unit), Link Control Options mthreads program, trn Configuration multimedia mail, Electronic Mail MX (DNS record), The DNS Database Files, Mail Routing on the Internet Myklebust, Trond, Kernel-Based NFSv2 Server Support name lookups via DNS, Name Lookups with DNS name servers, Name Lookups with DNS authoritative, Types of Name Servers, The DNS Database, Reverse Lookups cache, The named.boot File caching-only, Types of Name Servers, Caching-only named Configuration, Running pppd checking, Verifying the Name Server Setup configuring, Running named for IP masquerade, Handling Name Server Lookups lookups, Configuring Name Server Lookups Using resolv.conf primary, Types of Name Servers, The named.boot File root, Writing the Master Files, Verifying the Name Server Setup secondary, Types of Name Servers, The named.boot File slave, The named.boot File synchronizing, Types of Name Servers name service configuration, Name Service and Resolver Configuration named.boot file, The named.boot File named.conf file, The BIND 8 host.conf File named program, Name Service and Resolver Configuration, Running named named-bootconf.pl command, The BIND 8 host.conf File namespace (DNS), How DNS Works NAT (Network Address Translation), IP Masquerade and Network Address Translation, More About Network Address Translation national character sets in elm, National Character Sets NCP (Network Control Protocol), The Point-to-Point Protocol NCPFS (NetWare Core Protocol Filesystem), IPX and the NCP Filesystem kernel configuration, Configuring the Kernel for IPXand NCPFS mounting volume on, Mounting a Remote NetWare Volume ~/.nwclient file, A More Complex ncpmount Example server emulation, NetWare Server Emulation ncpmount command command-line arguments, The ncpmount Command in Detail complex example, A More Complex ncpmount Example simple example, A Simple ncpmount Example NCSA telnet, The PLIP Driver net domain, How DNS Works Net-1 network version, Linux Networking Net-2d network version, Linux Networking Net-2Debugged network version, Linux Networking Net-2e network version, Different Streaks of Development Net-3 network version, Linux Networking, Where to Get the Code Net-4 network version, Linux Networking netfilter IP tables and, Netfilter and IP Tables (2.4 Kernels) kernel modules, Backward Compatability with ipfwadmand ipchains Netnews news (network); Usenet NetRom protocol, Other Types of Hardware, The Socket Library, Kernel Networking Options in Linux 2.0.0 and Higher netstat command, Ethernet Interfaces, The netstat Command displaying connections, Displaying Connections NetWare, IPX and the NCP Filesystem print queue, printing to, Printing to a NetWare Print Queue NetWare Core Protocol (NCP), Xerox, Novell, and History NetWare Directory Service (NDS), More on NDS Support Network File System NFS Network Information System NIS network news news (network) Network News Transfer Protocol NNTP Network Unreachable error message, The Loopback Interface Networking HOWTO, Kernel Networking Options in Linux 2.0.0 and Higher networks, A Tour of Linux Network Devices ARPANET, Introduction to TCP/IP Networks booting, Configuring TCP/IP Networking connections networks, ports corporate, Introduction to TCP/IP Networks devices, Configuringthe NetworkingHardware display connections, Displaying Connections Ethernet, Ethernets, Ethernet Installation hardware, configuring, Configuringthe NetworkingHardware initialization scripts, The Loopback Interface interconnecting, The Internet Protocol internetworking interfaces interfaces Internet, Introduction to TCP/IP Networks introduction to, History IP address, Assigning IP Addresses kernel options, Kernel Options in Linux 2.0 and Higher Linux, Linux Networking Local Area, TCP/IP Networks names of, Writing hosts and networks Files packet-switched, TCP/IP Networks passwords, Using the passwd and group Maps ports, The Transmission Control Protocol private, Dealing with Private IP Networks programming interfaces, The Socket Library protocols, History services More on Ports ports synchronizing passwords, The Network Information System TCP/IP TCP/IP Networks, Issues of TCP/IP Networking TCP/IP thinnet, Ethernets Token Ring, Other Types of Hardware unreachable, The Loopback Interface UUCP UUCP Networks UUCP networks file, Writing hosts and networks Files Neuling, Michael, IP Firewall Chains (2.2 Kernels) newgroup control message, newgroup and rmgroup newnews command (NNTP), NNTP and thenntpd Daemon, Listing New Articles news (network), Usenet History active file, How Does Usenet Handle News?, Delivering News adding new groups, newgroup and rmgroup archiving articles, Expiring News articles, What Is Usenet, Anyway? batching, Article Batching expiring, Expiring News Articles listing, Listing New Articles posting, Posting an Article pushing news, Pushing a News Article onto a Server retrieving headers/message body, Retrieving an Article Header Only batching, How Does Usenet Handle News?, Delivering News C release C News cancel article, The cancel Message control messages, Control Messages deleting old news, How Does Usenet Handle News? distribution, How Does Usenet Handle News?, The sys File exchanging, What Is Usenet, Anyway?, How Does Usenet Handle News? expiration of, How Does Usenet Handle News?, Expiring News, trn Configuration, nn Configuration faking, NNTP and thenntpd Daemon feeding, What Is Usenet, Anyway?, How Does Usenet Handle News? flooding algorithm, How Does Usenet Handle News? follow-up, Newsreader Configuration groups, What Is Usenet, Anyway? history, How Does Usenet Handle News?, Delivering News ihave/sendme, How Does Usenet Handle News? Internet News, Usenet History limiting a feed, How Does Usenet Handle News? message IDs, How Does Usenet Handle News?, Delivering News newsmaster, Installation NNTP, Usenet History, How Does Usenet Handle News? pulling, How Does Usenet Handle News?, NNTP and thenntpd Daemon pushing, How Does Usenet Handle News?, NNTP and thenntpd Daemon receiving, The sys File removing old groups, newgroup and rmgroup spool, How Does Usenet Handle News? updating active files, The checkgroups Message Usenet, What Is Usenet, Anyway? news (Usenet) news (network); Usenet news faking, NNTP and thenntpd Daemon news feeds, How Does Usenet Handle News? news, C C News newsfeeds file (INN), Some INN Internals, The newsfeeds file newsfeeds, configuring, Configuring Newsfeeds newsgroups, What Is Usenet, Anyway? comp.mail.uucp, ManagingTaylor UUCP comp.protocols.ppp, PPP on Linux comp.protocols.tcp-ip.domains, Name Service and Resolver Configuration configuring, Configuring Newsgroups creating, newgroup and rmgroup deleting, newgroup and rmgroup file (/etc/news), Miscellaneous Files listing, Listing Available Groups listing articles, Listing Articles in a Group selecting, Selecting a Group on Which to Operate Usenet, Linux Usenet Newsgroups newsgroups file (INN), The active and newsgroups files newsmaster, Installation newsreaders changing to NNRP reader mode, Changing to NNRP Reader Mode configuring, Newsreader Configuration controlling access, Controlling Newsreader Access creating thread databases, trn Configuration, nn Configuration INN (Internet News) and, Newsreaders and INN nn, nn Configuration tass, tin Configuration threading, Newsreader Configuration tin, tin Configuration trn, trn Configuration newsrun command, Delivering News NFS (Network File System), The NetworkFile System C News in, C News in an NFS Environment daemons, The NFS Daemons exporting a volume, The exports File exports file, The exports File hard-mounting versus soft-mounting, Mounting an NFS Volume kernel-based server support, Kernel-Based NFSv2 Server Support matching uids and gids, The NFS Daemons, The exports File mounting volume on, The NetworkFile System, Mounting an NFS Volume restricting block size, Mounting an NFS Volume timeout, Mounting an NFS Volume via TCP/IP, Introduction to TCP/IP Networks nfsd daemon, The NetworkFile System NFSv2/NFSv3 server support, Kernel-Based NFSv2 Server Support NIS (Network Information System), Resolving Host Names, The Network Information System clients, The Client Side of NIS, Setting Up an NIS Client with GNU libc creating maps, Running an NIS Server databases, Getting Acquainted with NIS domains, Getting Acquainted with NIS, Setting Up an NIS Client with GNU libc GNU libc, The Network Information System, Setting Up an NIS Client with GNU libc locating servers, Getting Acquainted with NIS maps, Getting Acquainted with NIS nicknames, Getting Acquainted with NIS passwd maps, Using the passwd and group Maps resolver and, The host.conf File, The nsswitch.conf File securenets option, NIS Server Security security, Getting Acquainted with NIS, NIS Server Security servers, Getting Acquainted with NIS shadow passwords and, Using NIS with Shadow Support NIS+, NIS Versus NIS+ nn newsreader, configuration, nn Configuration nnrp.access file (INN), The nnrp.access file nnrpd command (INN), Newsreaders and INN, The nnrp.access file NNTP (Network News Transfer Protocol), Usenet History, NNTP and thenntpd Daemon article command, Reading an Article from a Group authorization, NNTP Authorization body command, Retrieving an Article Body Only C News and, nntpd Interaction with C News changing to NNRP reader mode, Changing to NNRP Reader Mode connecting to a news server, Connecting to the News Server group command, Selecting a Group on Which to Operate head command, Retrieving an Article Header Only ihave command, NNTP and thenntpd Daemon, Pushing a News Article onto a Server, nntpd Interaction with C News INN (Internet News) and, Some INN Internals leafnode, Reading an Article from a Group list active command, Listing Active Groups list command, Listing Available Groups listgroup command, Listing Articles in a Group listing groups, Listing Available Groups newnews command, NNTP and thenntpd Daemon, Listing New Articles post command, Posting an Article restricting access in, Restricting NNTP Access, NNTP Authorization nntpd, Usenet History components, NNTP and thenntpd Daemon installing the server, Installing the NNTP Server nntpsend.ctl file (INN), The nntpsend.ctl file NNTPSERVER environment variables, tin Configuration nntp_access file, Restricting NNTP Access Noorda, Ray, Caldera Support Novell Corporation, IPX and the NCP Filesystem nprint command, Printing to a NetWare Print Queue using lpd (line printer daemon), Using nprint with the Line Printer Daemon nsend command, Send Messages to NetWare Users nslint program, Other Useful Tools nslookup program, Verifying the Name Server Setup nsswitch.conf file, The nsswitch.conf File action statements, The nsswitch.conf File NYS, The Network Information System octets, IP Addresses Oja, Joanna, Sources of Information online help, Online Linux Support Open Source Writers Guild, Documentation Available via WWW OpenProjects IRC network, Online Linux Support org domain, How DNS Works OSPF (Open Shortest Path First) protocol, Kernel Networking Options in Linux 2.0.0 and Higher OSTYPE macro definition, VERSIONID and OSTYPE OSWG (Open Source Writers Guild), Documentation Available via WWW packet radio, Other Types of Hardware PACKET-FILTERING-HOWTO, Netfilter and IP Tables (2.4 Kernels) packet-switched networks, TCP/IP Networks PAD (Packet Assembler Disassembler), Other Types of Hardware Page, Greg, IPX and Linux PAP (Password Authentication Protocol), The Point-to-Point Protocol, Authentication with PPP Parallel Line IP PLIP (Parallel Line IP) protocol parallel port Ethernet, Ethernet Installation IP, The PLIP Driver Password Authentication Protocol PAP passwords hiding NetWare, Hiding Your NetWare Login Password network-wide, Using the passwd and group Maps remote login and, Configuring Remote Loginand Execution pathalias command, Mixing UUCP and RFC-822 pathalias database, Mail Routing in the UUCP World paths file, Mail Routing in the UUCP World, Mixing UUCP and RFC-822 PC/TCP compatibility, Kernel Networking Options in Linux 2.0.0 and Higher percent sign (in email address), Mixing Different Mail Formats persistent dialing, Persistent Dialing PGP (Pretty Good Privacy), The control.ctl file ping command, The Loopback Interface ping flooding, Accounting of ICMP Datagrams PLIP (Parallel Line IP) protocol driver, The PLIP Driver, The PPP and SLIP Drivers interface, The PLIP Interface null printer cable for, A PLIP Parallel Cable routing, Checking the ARP Tables plip1 device, A Tour of Linux Network Devices plipconfig command, The PLIP Interface point-to-point link, The PLIP Interface, The SLIP and PPP Interfaces, All About ifconfig, Checking the ARP Tables, The Point-to-Point Protocol Point-to-Point Protocol PPP Pomerantz, Ori, Sources of Information portmap daemon, Remote Procedure Call portmapper daemon, Remote Procedure Call ports, The Transmission Control Protocol COM, The Serial Device Special Files post command (NNTP), Posting an Article PPP (Point-to-Point Protocol), IP Over Serial Lines, Communications Software for Modem Links, The SLIP and PPP Interfaces, General Requirements, The Point-to-Point Protocol advanced configurations, More Advanced PPP Configurations async map, Link Control Options authentication, Authentication with PPP carrying IPX, Kernel Options in Linux 2.0 and Higher chat script, Using chat to Automate Dialing compressing data, The Point-to-Point Protocol, Link Control Options configuring demand dialing for, Demand Dialing configuring persistent dialing for, Persistent Dialing configuring server in, PPP Server daemon, PPP on Linux debugging setup of, Debugging Your PPP Setup default route, Running pppd driver, PPP on Linux dynamic address assignment, Choosing IP Addresses escaping control characters, Link Control Options IP addresses, Running pppd, Choosing IP Addresses lock files, Using Options Files Maximum Receive Unit, Link Control Options null modem cable for, A Serial NULL Modem Cable option files, Using Options Files proxy ARP, Routing Through a PPP Link routing, Checking the ARP Tables, Routing Through a PPP Link secrets files, The CHAP Secrets File security, General Security Considerations using CHAP, Authentication with PPP, The CHAP Secrets File using PAP, Authentication with PPP, The PAP Secrets File PPP-HOWTO, PPP on Linux ppp0 (PPP interface), The SLIP and PPP Interfaces ppp1 device, A Tour of Linux Network Devices pppd (kernel PPP module), PPP on Linux, Running pppd, General Security Considerations .ppprc file, Using Options Files pqlist command, Managing Print Queues pqstat command, Managing Print Queues primary option (BIND), The named.boot File print command, The print command print queues, NetWare, Printing to a NetWare Print Queue private IP addresses, Assigning IP Addresses private keys, The ssh daemon, The ssh client proc filesystem, mounting, Mounting the /proc Filesystem /proc/filesystems file, Preparing NFS /proc/kmsg file, Debugging Your PPP Setup /proc/net file, Mounting the /proc Filesystem /proc/net/ipx_route file, Static IPX Routing Using the ipx_route Command protocol numbers, The Services and Protocols Files protocols, History ATM (Asynchronous Transfer Mode), Other Types of Hardware, The Socket Library AX.25, Other Types of Hardware, The Socket Library, Kernel Networking Options in Linux 2.0.0 and Higher, A Tour of Linux Network Devices CSLIP, IP Over Serial Lines Ethernet, Ethernets Frame Relay, Other Types of Hardware ICMP, The Internet Control Message Protocol Internet (IP), The Internet Protocol Internet Datagram Protocol (IDP), Xerox, Novell, and History Internet Packet eXchange (IPX), The Socket Library, Kernel Networking Options in Linux 2.0.0 and Higher, IPX and the NCP Filesystem mapping XNS, Novell, and TCP/IP, Xerox, Novell, and History NetRom, Other Types of Hardware, The Socket Library, Kernel Networking Options in Linux 2.0.0 and Higher NetWare Core Protocol (NCP), Xerox, Novell, and History NNTP, NNTP and thenntpd Daemon OSPF, Kernel Networking Options in Linux 2.0.0 and Higher PLIP, The PLIP Driver PPP, IP Over Serial Lines, Communications Software for Modem Links Rose, Other Types of Hardware, The Socket Library, Kernel Networking Options in Linux 2.0.0 and Higher Routing Information Protocol (RIP), Kernel Networking Options in Linux 2.0.0 and Higher, Configuring an IPX Router Sequenced Packet eXchange (SPX), Xerox, Novell, and History Sequenced Packet Protocol (SPP), Xerox, Novell, and History Service Advertisement Protocol (SAP), Xerox, Novell, and History, Configuring an IPX Router SLIP, IP Over Serial Lines, Communications Software for Modem Links, SLIP Operation SMTP, How Is Mail Delivered? TCP, The Transmission Control Protocol token-passing, Other Types of Hardware UDP, The User Datagram Protocol UUCP, Protocol Overview X.25, Other Types of Hardware, The Socket Library XNS, The Socket Library protocols file, The Services and Protocols Files proxy ARP, The PLIP Interface, Checking the ARP Tables, Routing Through a PPP Link PTR (DNS record), The DNS Database Files public keys, The ssh daemon, The ssh client pulling news, NNTP and thenntpd Daemon pushing news, NNTP and thenntpd Daemon, Pushing a News Article onto a Server queuing mail, Mail Delivery Modes RARP (Reverse Address Resolution Protocol), Address Resolution, Kernel Networking Options in Linux 2.0.0 and Higher rc script, Configuring TCP/IP Networking rcp command, Configuring Remote Loginand Execution reaching a host, The Loopback Interface real user names, Installation Real-time Blackhole List (RBL), The Real-time Blackhole List, Protecting Against Mail Spam receiving news, The sys File RedHat (Linux distribution), Obtaining Linux relaynews command, Delivering News remote command execution, Configuring Remote Loginand Execution execution, How Is Mail Delivered? file access, Configuring Remote Loginand Execution, The NetworkFile System, IPX and the NCP Filesystem filesystem, Mounting an NFS Volume login, Introduction to TCP/IP Networks, The Transmission Control Protocol, Configuring Remote Loginand Execution via TCP/IP, Introduction to TCP/IP Networks X Windows session, Introduction to TCP/IP Networks Remote Procedure Call RPC repeaters, Ethernets resolv.conf file, Configuring Name Server Lookups Using resolv.conf, Caching-only named Configuration resolvers configuring, The host.conf File environment variables, Resolver environment variables library, The Resolver Library robustness, Resolver Robustness using a name server, The host.conf File, The nsswitch.conf File using NIS, The host.conf File, The nsswitch.conf File RESOLV_ADD_TRIM_DOMAINS environment variable, Resolver environment variables RESOLV_HOST_CONF environment variable, Resolver environment variables RESOLV_MULTI environment variable, Resolver environment variables RESOLV_OVERRIDE_TRIM_DOMAINS environment variable, Resolver environment variables RESOLV_SERV_ORDER environment variable, Resolver environment variables RESOLV_SPOOF_CHECK environment variable, Resolver environment variables resource record (RR), The DNS Database Files restricting access to services, The tcpd Access Control Facility Reverse Address Resolution Protocol RARP reverse mapping, Reverse Lookups rewrite rules (sendmail), Interpreting and Writing Rewrite Rules RFC-1036, The control.ctl file RFC-1123, Mail Routing on the Internet RFC-1341, What Is a Mail Message? RFC-1700, ICMP datagram types RFC-793, TCP Extensions: used with -m tcp -p tcp RFC-821, How Is Mail Delivered?, Mail Routing on the Internet RFC-822, Electronic Mail, What Is a Mail Message?, RFC-822, Obsolete Mail Formats names, Mixing UUCP and RFC-822 RFC-974, Mail Routing on the Internet RIP (Routing Information Protocol), The Routing Table, Kernel Networking Options in Linux 2.0.0 and Higher, The PLIP Interface, All About ifconfig rlogin command, Configuring Remote Loginand Execution rmail command, Command Execution rmgroup control message, newgroup and rmgroup rnews command, Command Execution, Delivering News, Article Batching root domain, How DNS Works Rose protocol, Other Types of Hardware, The Socket Library, Kernel Networking Options in Linux 2.0.0 and Higher round-trip time (IP), The Loopback Interface route command, Interface Configuration for IP, Ethernet Interfaces, The PLIP Interface, SLIP Operation route, default, IP Addresses, Routing Through a Gateway, Running pppd routed command, The Routing Table routers, Ethernets routing daemon, The Routing Table dynamic, The Routing Table, The Internet Control Message Protocol, The PLIP Interface, Checking the ARP Tables, Routing Through a PPP Link email email, routing ICMP Redirect, The Internet Control Message Protocol IP, IP Routing datagrams IP, routing gateways, Routing Through a Gateway IPX (Internet Packet eXchange), Configuring an IPX Router metric, Metric Values, All About ifconfig over PPP, Routing Through a PPP Link protocols, The Routing Table proxy ARP, Checking the ARP Tables smart host, Mail Routing in the UUCP World Routing Information Protocol (RIP), The Routing Table, Kernel Networking Options in Linux 2.0.0 and Higher, The PLIP Interface, All About ifconfig, Configuring an IPX Router routing table, The Routing Table displaying via netstat, Displaying the Routing Table RPC (Remote Procedure Call), Remote Procedure Call mapping ports to programs, Remote Procedure Call program numbers, Remote Procedure Call rpc file, Remote Procedure Call rpc.mountd daemon, The NFS Daemons rpc.nfsd daemon, The NetworkFile System, The NFS Daemons rpc.portmap daemon, Remote Procedure Call rpcinfo command, Setting Up an NIS Client with GNU libc RR (resource record), The DNS Database Files RS-232 serial interface, Serial Hardware rsh command, Configuring Remote Loginand Execution rsmtp command, Command Execution program, How Is Mail Delivered? RTS/CTS (Ready to Send/Clear to Send), Serial Hardware ruleset semantics (sendmail), Ruleset Semantics Running Linux, Documentation Available Commercially Rusling, David A., Sources of Information Russell, Paul, IP Firewall Chains (2.2 Kernels) SAGE (System Administrator's Guild), SAGE: The SystemAdministrators Guild Salz, Rich, NNTP and thenntpd Daemon scp command, Configuring Remote Loginand Execution, The ssh client, Using ssh secondary option (BIND), The named.boot File securenets option, NIS Server Security security, Running in Server Mode Ethernet, All About ifconfig false hostnames, The host.conf File filtering, What Is IP Filtering? firewalls, TCP/IP Firewall methods of attack, Methods of Attack network, TCP/IP Firewall PPP, Using chat to Automate Dialing remote login, Configuring Remote Loginand Execution SLIP, Using dip spoofing, The host.conf File system, System Security TCP servers, The inetd Super Server, The tcpd Access Control Facility using NIS, NIS Server Security using PPP, General Security Considerations UUCP, Controlling Access to UUCP Features sed command (UNIX), Installation sendbatches command, Article Batching sendmail, Electronic Mail, Sendmail access database, The access database analyzing mail statistics, Analyzing Mail Statistics configuration files, Overview of Configuration Files hostat command, hoststat important configurations, Some Useful sendmail Configurations installing, Installing sendmail m4 options, Configuring sendmail Options mailstats command, mailstats managaing email aliases, Managing Mail Aliases management tools, Tips and Tricks managing the mail spool, Managing the Mail Spool options, configuring, Configuring sendmail Options processing mail queues, Forcing a Remote Host to Process its Mail Queue rewrite rules, Interpreting and Writing Rewrite Rules ruleset semantics, Ruleset Semantics running, Running sendmail smart host configurations, Using a Smart Host testing the configuration, Testing Your Configuration virtual email hosting, Configuring Virtual Email Hosting virtusertable feature, Forwarding virtual-hosted mail to other destinations sendmail.cf file, Introduction to sendmail, The sendmail.cf and sendmail.mc Files configuring sendmail options, Configuring sendmail Options generating, Generating the sendmail.cf File R and S commands, sendmail.cf R and S Commands sendmail.df file, The sendmail.cf and sendmail.mc Files sendmail.mc file, The sendmail.cf and sendmail.mc Files parameters, Typically Used sendmail.mc Parameters two examples, Two Example sendmail.mc Files .Sequence file, Be Paranoid: Call Sequence Checks Sequenced Packet eXchange (SPX), Xerox, Novell, and History Sequenced Packet Protocol (SPP), Xerox, Novell, and History serial devices accessing, Accessing Serial Devices configuring, Configuring the Serial Hardware serial line device file, Accessing Serial Devices hardware handshake, Serial Hardware, The stty Command protecting characters, Link Control Options Serial Line Internet protocols, Acknowledgments SLIP; PPP serial line IP SLIP; PPP servers inetd, The inetd Super Server kernel-based support, Kernel-Based NFSv2 Server Support master, Getting Acquainted with NIS, Running an NIS Server nfsd daemon, The NetworkFile System NIS, Getting Acquainted with NIS NNTP, NNTP and thenntpd Daemon rpc.nfsd daemon, The NetworkFile System slave, Getting Acquainted with NIS, Running an NIS Server tcpd daemon wrapper, The tcpd Access Control Facility UUCP, Setting Up Your System for Dialing In ypserv command, Getting Acquainted with NIS Service Advertisement Protocol (SAP), Xerox, Novell, and History, Configuring an IPX Router services, More on Ports port numbers and, More on Ports restricting access to, System Security, The tcpd Access Control Facility setting up, The inetd Super Server well-known, More on Ports, The Services and Protocols Files services file, The Services and Protocols Files services.byname map, Choosing the Right Maps setnewsids (C News), C News setserial command, The setserial Command setting domain name, Setting the Hostname hostname, Setting the Hostname IRQ, All About ifconfig NIS domain, Getting Acquainted with NIS, Setting Up an NIS Client with GNU libc shadow passwords and NIS, Using NIS with Shadow Support Simple Mail Transfer Protocol (SMTP) SMTP sites, History leaf, Mail Routing in the UUCP World Skahan, Vince, About This Book sl0 (SLIP interface), The SLIP and PPP Interfaces sl1 device, A Tour of Linux Network Devices Slackware (Linux distribution), Obtaining Linux slattach program, SLIP Operation slave servers, Getting Acquainted with NIS, Running an NIS Server SLIP (Serial Line IP) protocol, IP Over Serial Lines, Communications Software for Modem Links, General Requirements driver, The PPP and SLIP Drivers interface, The SLIP and PPP Interfaces let users initiate, Using dip null modem cable for, A Serial NULL Modem Cable operation, SLIP Operation routing, Checking the ARP Tables SLIPDISC (line discipline), SLIP Operation sliplogin program, Running in Server Mode slist command, Server List slogin command, Configuring Remote Loginand Execution, The ssh client, Using ssh smart host configurations, Using a Smart Host smart host routing, Mail Routing in the UUCP World SMART_HOST macro, Using a Smart Host SMTP (Simple Mail Transfer Protocol), How Is Mail Delivered? batched, Command Execution, How Is Mail Delivered? service, Running Exim SOA (DNS record), The DNS Database, The DNS Database Files sockets, The Socket Library source routing, Kernel Networking Options in Linux 2.0.0 and Higher source-routed address, Mixing Different Mail Formats spamming, Managing Unwanted or Unsolicited Mail (Spam), Protecting Against Mail Spam Spencer, Henry, Usenet History spoofing attacks, Methods of Attack preventing, The host.conf File spool directory, UUCP Transfers and Remote Execution spooling, UUCP Transfers and Remote Execution ssh command, Configuring Remote Loginand Execution clients, The ssh client configuring, Installing and Configuring ssh running clients, Using ssh sshd daemon, The ssh daemon ssh tools, System Security ssh-keygen utility, The ssh daemon, The ssh client .ssh/authorized_keys file, Using ssh sshd daemon, The ssh daemon standalone host, The Dummy Interface, IP Alias standards, filesystem, File System Standards Start of Authority, The DNS Database Storm, Kim F., nn Configuration Stover, Martin, IPX and Linux, NetWare Server Emulation stty command, The stty Command subdomains, How DNS Works DNS, How DNS Works, Reverse Lookups subnets DNS, creating, Creating Subnets IP, Subnetworks, Kernel Networking Options in Linux 2.0.0 and Higher sudo command, Using dip support, online, Online Linux Support SuSE (Linux distribution), Obtaining Linux synchronizing name servers, Types of Name Servers sys file (/etc/news), The sys File syslog, Debugging Your PPP Setup, The tcpd Access Control Facility, The exports File system maintenance, Maintaining Your System system security, System Security tass newsreader, tin Configuration Taylor UUCP, ManagingTaylor UUCP accounts, Providing UUCP Accounts alternates, Alternates anonymous, Anonymous UUCP call sequence check, The Inner Workings of uucico, Be Paranoid: Call Sequence Checks call time, Restricting call times calling in, Setting Up Your System for Dialing In calling out, uucico Command-line Options chat scripts, The login chat checking, Taylor Configuration Files command execution, Command Execution configuration files, UUCP Configuration Files, General Configuration Options Using the config File configure as server, Setting Up Your System for Dialing In device, port and speed, Identifying Available Devices Through the port File dial file, How to Dial a Number Using the dial File dialcode file, Telephone number direct lines, Using a Direct Connection file transfer, File Transfers forwarding, Forwarding handshake, The Inner Workings of uucico HDB, Log Files and Debugging hostname, Site Naming, General Configuration Options Using the config File job, UUCP Transfers and Remote Execution logging and debugging, uucico Command-line Options, Log Files and Debugging logging in, What UUCP Needs to Know, The login chat login chat, The login chat login security, Protecting Yourself Against Swindlers mail, Command Execution Mapping Project, Site Naming master, The Inner Workings of uucico modem, Identifying Available Devices Through the port File, How to Dial a Number Using the dial File news, Command Execution over TCP/IP, UUCP Over TCP passwd file, Providing UUCP Accounts phone number, Telephone number port file, Identifying Available Devices Through the port File priorities, UUCP Transfers and Remote Execution, Restricting call times protocols, The Inner Workings of uucico tuning, Tuning the Transmission Protocol remote system, How to Tell UUCP About Other Systems Using the sys File, System name restrict call time, Restricting call times command execution, Command Execution file transfer, File Transfers forwarding, Forwarding retry interval, Restricting call times set up logins, Providing UUCP Accounts slave, The Inner Workings of uucico spool directory, UUCP Transfers and Remote Execution spool grade, UUCP Transfers and Remote Execution, Restricting call times statistics, Log Files and Debugging sys file, How to Tell UUCP About Other Systems Using the sys File uucico, The Inner Workings of uucico Taylor, Ian, ManagingTaylor UUCP TCP (Transmission Control Protocol), The Transmission Control Protocol UUCP, UUCP Over TCP wrapper program, The tcpd Access Control Facility TCP/IP (Transmission Control Protocol/Internet Protocol) accounting, IP Accounting compressing packets, SLIP Operation, The Point-to-Point Protocol configuring networks, Configuring TCP/IP Networking firewalls, TCP/IP Firewall networks, TCP/IP Networks, Issues of TCP/IP Networking tcpd daemon wrapper, The tcpd Access Control Facility telephones demand dialing, Demand Dialing persistent dialing, Persistent Dialing sending data over, IP Over Serial Lines, Serial Line IP, The Point-to-Point Protocol terminal programs, Communications Software for Modem Links testing network configuration, The Loopback Interface, Ethernet Interfaces sendmail configuration, Testing Your Configuration TFTP (Trivial File Transfer Protocol), System Security, The inetd Super Server thinnet, Ethernets Thümmler, Swen, The Network Information System tin newsreader, configuration, tin Configuration TNC (Terminal Node Controller), Other Types of Hardware Token Ring ARP and, Address Resolution driver, Other Network Types networks, Other Types of Hardware TOS (Type Of Service) bits, manipulating, TOS Bit Manipulation tr0 device, A Tour of Linux Network Devices Transmission Control Protocol TCP Tridgell, Andrew, Linux Networking tripwire command, System Security Trivial File Transfer Protocol TFTP trn newsreader, configuration, trn Configuration T'so, Theodore, The setserial Command ttys, Introduction to Serial Devices line discipline, Introduction to Serial Devices, SLIP Operation, PPP on Linux UART, Serial Hardware UDP (User Datagram Protocol), The User Datagram Protocol Unix-to-Unix Copy UUCP unsolicited mail, managing, Managing Unwanted or Unsolicited Mail (Spam), Protecting Against Mail Spam Urlichs, Matthias, Different Streaks of Development Usenet, Netnews map files, Mixing UUCP and RFC-822 maps, Mail Routing in the UUCP World USENIX Association, SAGE, SAGE: The SystemAdministrators Guild User Datagram Protocol (UDP), The User Datagram Protocol user groups, Linux User Groups /usr/lib/uucp/passwd file, Providing UUCP Accounts uucico command, ManagingTaylor UUCP, The Inner Workings of uucico command-line options, uucico Command-line Options UUCP, Communications Software for Modem Links anonymous, Anonymous UUCP checking, Troubleshooting email routing, Mail Routing in the UUCP World Exim interface to, UUCP Setup jobs, UUCP Transfers and Remote Execution mail, How Is Mail Delivered? map files, Mixing UUCP and RFC-822 Mapping Project, Mail Routing in the UUCP World networks, UUCP Networks news, Delivering News protocols, UUCP Low-Level Protocols selection, Selecting Specific Protocols security, Protecting Yourself Against Swindlers Taylor Taylor UUCP troubleshooting, Troubleshooting uucp domain, How DNS Works uucpxtable, Mixing UUCP and RFC-822 uuwho command, Mixing UUCP and RFC-822 uux command, Article Batching Van Jacobson header compression, SLIP Operation, The Point-to-Point Protocol VERSIONID macro defintion, VERSIONID and OSTYPE Virtual Brewery, Example Network:The Virtual Brewery virtual email hosting accepting mail for other domains, Accepting mail for other domains forwarding mail to other destinations, Forwarding virtual-hosted mail to other destinations virtusertable feature (sendmail), Forwarding virtual-hosted mail to other destinations Vos, Jos, Original IP Firewall (2.0 Kernels) Welsh, Matt, Sources of Information Wirzenius, Lars, Sources of Information wrapper, TCP, The tcpd Access Control Facility X Windows, Introduction to TCP/IP Networks X.25 protocol, Other Types of Hardware, The Socket Library XDR (External Data Representation), Remote Procedure Call Xerox Corporation, Xerox, Novell, and History Xerox Network Specification (XNS), Xerox, Novell, and History XNS (Xerox Networking System), The Socket Library Ye Olde ARPAnet kludge, Mixing Different Mail Formats Yellow Pages (YP), Resolving Host Names yp-linux command, The Network Information System ypbind command, Getting Acquainted with NIS ypcat command, Getting Acquainted with NIS utility, Setting Up an NIS Client with GNU libc yppasswd, Using the passwd and group Maps ypserv command, Getting Acquainted with NIS Yutaka, Niibe, The PLIP Driver Zen, What Is Usenet, Anyway? zone files, Running named zones, DNS DNS, zones