old-www/HOWTO/PPP-HOWTO/x1386.html

163 lines
3.1 KiB
HTML

<HTML
><HEAD
><TITLE
>Setting Up a local Name server</TITLE
><META
NAME="GENERATOR"
CONTENT="Modular DocBook HTML Stylesheet Version 1.52"><LINK
REL="HOME"
TITLE="Linux PPP HOWTO"
HREF="index.html"><LINK
REL="UP"
TITLE="Using Internet services with Dynamic IP numbers"
HREF="dynamic-server.html"><LINK
REL="PREVIOUS"
TITLE="Using Internet services with Dynamic IP numbers"
HREF="dynamic-server.html"><LINK
REL="NEXT"
TITLE="Linking two networks using PPP"
HREF="wan.html"></HEAD
><BODY
CLASS="SECT1"
BGCOLOR="#FFFFFF"
TEXT="#000000"
LINK="#0000FF"
VLINK="#840084"
ALINK="#0000FF"
><DIV
CLASS="NAVHEADER"
><TABLE
WIDTH="100%"
BORDER="0"
CELLPADDING="0"
CELLSPACING="0"
><TR
><TH
COLSPAN="3"
ALIGN="center"
><A
HREF="http://www.linuxports.com/howto/ppp"
TARGET="_top"
>Linux PPP HOWTO</A
></TH
></TR
><TR
><TD
WIDTH="10%"
ALIGN="left"
VALIGN="bottom"
><A
HREF="dynamic-server.html"
>Prev</A
></TD
><TD
WIDTH="80%"
ALIGN="center"
VALIGN="bottom"
>Chapter 23. Using Internet services with Dynamic IP numbers</TD
><TD
WIDTH="10%"
ALIGN="right"
VALIGN="bottom"
><A
HREF="wan.html"
>Next</A
></TD
></TR
></TABLE
><HR
ALIGN="LEFT"
WIDTH="100%"></DIV
><DIV
CLASS="SECT1"
><H1
CLASS="SECT1"
><A
NAME="AEN1386"
>23.2. Setting Up a local Name server</A
></H1
><P
>Whilst you can quite happily use the domain name servers located at your
ISP, you can also set up a local caching only (secondary) name server
that is brought up by the ip-up script. The advantage of running a local
(caching only) name server is that it will save you time (and bandwidth)
if you frequently contact the same sites during a long on-line session.</P
><P
>DNS configuration for a caching only nameserver (that uses a
"forwarders' line in the named.boot file pointing at your ISPs DNS) is
relatively simple. The O'Reilly book (DNS and Bind) explains all you
want to know about this.</P
><P
>There is also a DNS-HOWTO available.</P
><P
>If you are running a small LAN that can access the Internet through you
Linux PC (using IP Masquerade for example), it is probably a good idea
to run a local name server (with a forwarders directive) whilst the link
is up as this will minimise the bandwidth and delays associated with
name resolution.</P
><P
>One point of Nettiquette: ask permission from your ISP before you start
using a secondary, caching only name server in your ISP's domain.
Properly configured, your DNS will not cause any problems to your ISP at
all, but if you get things wrong, it can cause problems.</P
></DIV
><DIV
CLASS="NAVFOOTER"
><HR
ALIGN="LEFT"
WIDTH="100%"><TABLE
WIDTH="100%"
BORDER="0"
CELLPADDING="0"
CELLSPACING="0"
><TR
><TD
WIDTH="33%"
ALIGN="left"
VALIGN="top"
><A
HREF="dynamic-server.html"
>Prev</A
></TD
><TD
WIDTH="34%"
ALIGN="center"
VALIGN="top"
><A
HREF="index.html"
>Home</A
></TD
><TD
WIDTH="33%"
ALIGN="right"
VALIGN="top"
><A
HREF="wan.html"
>Next</A
></TD
></TR
><TR
><TD
WIDTH="33%"
ALIGN="left"
VALIGN="top"
>Using Internet services with Dynamic IP numbers</TD
><TD
WIDTH="34%"
ALIGN="center"
VALIGN="top"
><A
HREF="dynamic-server.html"
>Up</A
></TD
><TD
WIDTH="33%"
ALIGN="right"
VALIGN="top"
>Linking two networks using PPP</TD
></TR
></TABLE
></DIV
></BODY
></HTML
>