mirror of https://github.com/tLDP/LDP
updated
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<title>FBB Packet-radio BBS mini-HOWTO
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<author>Miroslav "Misko" Skoric, YT7MPB,
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<tt/skoric at eunet dot yu/
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<date>v1.37, 2006-07-28
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<date>v1.38, 2007-04-09
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<abstract>
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<nidx>linux windows nt amateur packet radio</nidx>
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This mini-HOWTO covers the installation and use of
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@ -82,14 +82,14 @@ have here:
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<tscreen><verb>
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1. WinFBB when I run Windows.
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2. LinFBB when I run Linux. It should be an
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Xwindow application that may be
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started/stopped similarly to WinFBB.
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2. LinFBB when I run Linux. It should be an
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Xwindow application that may be
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started/stopped similarly to WinFBB.
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That's why X11 LinFBB package is used.
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3. LinFBB when I run Linux, but as a daemon
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that runs in the background. In addition,
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an interface for a local user (myself)
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an interface for a local user (myself)
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is needed, as well as an interface to
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monitor the radio channel.
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@ -2101,7 +2101,7 @@ next release of this mini-HOWTO, hams!).
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2003-06-30
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<p>
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First of all, I have been looking for networking software that
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First of all, I have been looking for networking software that
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does not require much of hardware resources. Several hams
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keep advising me to try this or that way, but Jose, CO2JA,
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sent me his distribution copy of <bf>NCSA Telnet</bf> utility.
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@ -2279,6 +2279,152 @@ route default 6 * d
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<p>
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Then I became capable to access my LinFBB server.
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<sect1>JNOS 1.11f
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<p>
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2007-04-09
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<p>
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Similarly to Xrouter, JNOS is much more than a simple 'telnet client'
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for DOS machines. And yes, its telnet ability is fine so I use it to
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make casual connections to my LinFBB server without problems.
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<p>
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On the other side, I always wanted to offer a 24/7 mailbox service to
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the radio amateurs in my area. Having in mind that the computer
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the LinFBB server runs on is everything but a brand new machine, and
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if it failured I would stay without my primary working computer, I
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started thinking to use the old 80286 box as a full-time mailbox. In
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fact, JNOS might be one of the best solutions for that:
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<tscreen><verb>
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- It provides complete mailbox operations for incoming users,
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- It supports low-end computers, like my 80286 with 1MB RAM,
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- It supports mail forwarding with LinFBB servers, including
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forwarding over Ethernet,
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- etc.
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</verb></tscreen>
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<sect2>Plans
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<p>
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Here it is a diagram of my planned ham radio systems:
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<tscreen><verb>
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__________________________ _____________________________
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|80286 CPU, 12MHz, 1MB RAM| |P II CPU, 400MHz, 224 MB |
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|MS DOS 5.0 | |Linux Mdk 9.1 / Win2000Pro |
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|JNOS 1.11f for DOS | |LinFBB 7.04j / WinFBB16 7.00i|
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|configured AXIP tunnel |-- Ethernet --|BPQ32 with AXIP tunnel |
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|TNC2 in KISS mode | 10 mbps |tel. modem port 33k6 |
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|2m VHF radio | (LAN) |dial-up to the Internet |
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|network card | |network card |
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--------------------------- -------------------------------
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</verb></tscreen>
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<p>
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The idea was to use the 286 box as a 24/7 amateur radio mailbox. The
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local users would connect to the mailbox using their VHF stations. While
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logged, they are offered to read bulletins that have been supplied
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by the LinFBB machine. In addition, users can sent replies to the bulletins'
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authors as well as to write other personal emails. JNOS is planned to run
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24/7 which means its services would be available regardless the LinFBB
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computer is active or not.
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<p>
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Having in mind that LinFBB is just one of the applications I use when
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working with the P II computer, and the fact that I don't have enough
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resources to finance some better equipment, I found it as rational to
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use LinFBB only when really needed - including forwarding purposes.
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That means, the local packeteers would have no problem if the P II
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computer is off while I am at work or something. The 286 box is going
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to provide all mailbox services.
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<p>
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When I return home from work and switch the LinFBB server on in order to
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exchange the content of its mailbox with remote BBS stations using 'telnet
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forwarding' via the Internet, it would establish another 'telnet
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forwarding'session - this time with JNOS mailbox added. Of course, in that
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case I would need to keep my dial-up connection to the Internet alive as
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long as the content of the LinFBB mailbox is exchanged with remote servers.
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The telnet sessions within the home LAN (Ethernet) can take as much time as
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needed and during those sessions LinFBB and JNOS mailboxes would exchange
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both bulletins ('SB' messages) and personal stuff ('SP' messages).
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<sect2>Realization
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<p>
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I have already had a version of JNOS which was dated somewhere in mid-nineties.
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First of all, I searched the web in order to learn how things changed during
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the last decade and, as a result, I discovered that the last version of JNOS
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'family 1.xx' was 1.11f - for which I have even found the installer package.
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So I downloaded and installed it - though I was not sure which options were
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activated ("defined" in the JNOS jargon) and which were not ("undefined").
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<p>
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According the instructions, I ensured that my network card's driver was started
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before any part of the JNOS program itself. It is important because at the
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early stages of JNOS booting process, the JNOS ports are configured, including
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the port which uses the network card. So, I managed to set up two ports:
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<tscreen><verb>
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- A port that provides radio access using TNC2 in KISS mode,
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- A port that provides telnet access using the network card.
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</verb></tscreen>
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<p>
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The first tests of the equipment proved that both radio and telnet outlets
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were working, but nothing was considered as finished until the JNOS system
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was capable to exchange the content of its mailbox with the LinFBB server.
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Having in mind that the LinFBB server's telnet port has been in use for a
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long time now, I just set up another forwarding 'partner' that was JNOS.
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The same I did at the JNOS side, though it was a tricky business because
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I was used to configure FBB systems and haven't handle any JNOS system
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since the early nineties. So far - so good.
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<p>
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Unfortunately I faced to the issues I heard of for several times: Telnet
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is not the best option to make a forwarding between FBB and JNOS. In fact,
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there is no complete technical description of that behavior available,
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but what happens is that both FBB or JNOS somehow do not understand
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what the other party 'wants to say'. To be precise, during the so called
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handshaking part of the session, both systems have to exchange their
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'flags' which are [JNOS-1.11f-BFHIM$] in JNOS and [FBB-7.04j-ABFHM$] in
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FBB. Whatever happens during that telnet session, often the result is a
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broken link.
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<p>
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After making several tests without much success, I had to subscribe to a
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couple of mailing lists and asked for help. The majority of hams suggested
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to use an AXIP connection instead of telnet. Frankly speaking, I heard of
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the AXIP and AXUDP connections long ago, but I haven't learned much of
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them because I did not need them at the time. In short, AXIP (or AXUDP)
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are used to 'encapsulate' the usual radio traffic of the AX.25 type into
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the internet-like TCP/IP packets. When you have such encapsulated packets
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of data, it is easy to transfer them using the wired links - including the
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Internet or the Ethernet in my case. More details on how to configure AXIP
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(or AXUDP) you can find in another document: AX.25 howto.
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<p>
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The good thing is that Linux has a 'native' support for the amateur radio
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networking, which means you do not have to install some "node" or "switch"
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software that is used as an interface between LinFBB server computer and
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other amateur radio mailbox systems (more details about the specific setup
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in my case will follow in the next versions of this document). The good
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thing at the JNOS side is that it also does not need a "node" or "switch"
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software that runs bellow the JNOS software itself. That means both LinFBB
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and JNOS system operators ('sysops' in the ham terminology) are required
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just to activate and configure native AXIP or AXUDP features of their mailbox
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systems. In opposite to that, WinFBB (FBB for Windows) sysops have to
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install additional "node" or "switch" packages, called BPQ or others.
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<p>
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After some fine tuning and additional 'tweaking' the LinFBB and JNOS
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systems, I am capable to exchange the amateur radio messages between the
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two mailboxes. Of course, the experimentation is far from over, because
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there are several minor issues to work on. Stay tuned ...
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<p>
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<sect>How to communicate with LinFBB in Serbian?
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@ -4151,7 +4297,7 @@ may help. So I look forward to hear from you soon!
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<sect>Bibliography
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<p>
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2006-07-28
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2007-04-09
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<em>Notice: I often participate to (inter)national ICT
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conferences in Serbia & Montenegro, as well as abroad,
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@ -4310,6 +4456,8 @@ combined!
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- "The Conference Low-Down", IEEE Potentials, Dec 2005
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- "Divided We Fall", The Institute, IEEE, Dec 2005
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- "University Networking Through the Amateur Radio Communications",
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plenary lecture, "3rd WSEAS/IASME Int. Conf. on Engineering
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Education", Vouliagmeni, Athens, Greece, 2006.
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@ -4321,6 +4469,10 @@ combined!
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- "University Networking Through the Amateur Radio Communications",
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tutorial, "10th WSEAS CSCC Multiconference",
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Vouliagmeni, Athens, Greece, 2006.
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- "Education in Peril", The Institute, IEEE, Sep 2006
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- "The Conference Low-Down", IEEE Potentials, Dec 2006
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</verb></tscreen>
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<p>
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@ -4338,7 +4490,7 @@ I invite their administrators to contact me in order to cooperate.
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<p>
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<sect1>Copyright
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<p>
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Copyright (c) 2006 by Miroslav "Misko" Skoric, YT7MPB.
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Copyright (c) 2007 by Miroslav "Misko" Skoric, YT7MPB.
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<P>
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Permission is granted to copy, distribute and/or modify
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this document under the terms of the GNU Free Documentation
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@ -4377,7 +4529,7 @@ at regular intervals.
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This is not the first release of this mini-HOWTO. I
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hope to improve it whenever possible. Besides that,
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there are other documents that may help you to
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use amateur radio stuff on your computer. You may
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use amateur radio stuff on your computer. You can
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also look for AX.25 (mini-)HOWTO at the same
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location where you get this FBB mini-HOWTO.
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@ -5,7 +5,7 @@
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<title>LILO mini-HOWTO
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<author>Miroslav "Misko" Skoric,
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<tt/skoric at eunet dot yu/
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<date>v3.27, 2006-07-28
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<date>v3.28, 2007-04-09
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<abstract>
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<nidx>linux loader windows nt 2000 boot laptop hp</nidx>
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LILO is the most used <bf/Li/nux <bf/Lo/ader for the x86 flavor of
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@ -1229,7 +1229,7 @@ name="Linux+WindowsNT"> mini-HOWTO.
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<sect>Bibliography
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<p>
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2006-07-28
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2007-04-09
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<em>Notice: I often participate to (inter)national ICT
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conferences in Serbia & Montenegro, as well as abroad,
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@ -1388,6 +1388,8 @@ combined!
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- "The Conference Low-Down", IEEE Potentials, Dec 2005
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- "Divided We Fall", The Institute, IEEE, Dec 2005
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- "University Networking Through the Amateur Radio Communications",
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plenary lecture, "3rd WSEAS/IASME Int. Conf. on Engineering
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Education", Vouliagmeni, Athens, Greece, 2006.
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@ -1399,6 +1401,10 @@ combined!
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- "University Networking Through the Amateur Radio Communications",
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tutorial, "10th WSEAS CSCC Multiconference",
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Vouliagmeni, Athens, Greece, 2006.
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- "Education in Peril", The Institute, IEEE, Sep 2006
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- "The Conference Low-Down", IEEE Potentials, Dec 2006
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</verb></tscreen>
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<p>
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@ -1416,7 +1422,7 @@ I invite their administrators to contact me in order to cooperate.
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<p>
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<sect1>Copyright
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<p>
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Copyright (c) 2006 by Miroslav "Misko" Skoric, YT7MPB.
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Copyright (c) 2007 by Miroslav "Misko" Skoric, YT7MPB.
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<p>
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Permission is granted to copy, distribute and/or modify this document
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under the terms of the GNU Free Documentation License, Version 1.1 or
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@ -5,14 +5,14 @@
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<title>Linux+WindowsNT mini-HOWTO
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<author>Miroslav "Misko" Skoric,
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<tt/skoric at eunet dot yu/
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<date>v2.26, 2006-07-28
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<date>v2.27, 2007-04-09
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<abstract>
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<nidx>linux loader windows nt 2000 boot laptop hp</nidx>
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This mini-HOWTO covers some ways on how to install both Linux
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and Windows NT on the same computer and how to boot either of
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them from within LILO menu. There is also another mini-HOWTO
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"Linux+NT-Loader" that covers how to boot either of them from
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within NT Loader menu. As I consider Windows 2000 to be Windows NT
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within NT Loader menu. As I consider Windows 2000 to be Windows NT
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version 5.0 this mini-HOWTO also covers upgrading from NT 4.0 to
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2000.</abstract>
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@ -1677,7 +1677,7 @@ name="FBB">HOWTO.
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<sect>Bibliography
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<p>
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2006-07-28
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2007-04-09
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<em>Notice: I often participate to (inter)national ICT
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conferences in Serbia & Montenegro, as well as abroad,
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@ -1836,6 +1836,8 @@ combined!
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- "The Conference Low-Down", IEEE Potentials, Dec 2005
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- "Divided We Fall", The Institute, IEEE, Dec 2005
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- "University Networking Through the Amateur Radio Communications",
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plenary lecture, "3rd WSEAS/IASME Int. Conf. on Engineering
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Education", Vouliagmeni, Athens, Greece, 2006.
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@ -1847,6 +1849,10 @@ combined!
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- "University Networking Through the Amateur Radio Communications",
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tutorial, "10th WSEAS CSCC Multiconference",
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Vouliagmeni, Athens, Greece, 2006.
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- "Education in Peril", The Institute, IEEE, Sep 2006
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- "The Conference Low-Down", IEEE Potentials, Dec 2006
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</verb></tscreen>
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<p>
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@ -1864,7 +1870,7 @@ I invite their administrators to contact me in order to cooperate.
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<p>
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<sect1>Copyright
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<p>
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Copyright (c) 2006 by Miroslav "Misko" Skoric, YT7MPB.
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Copyright (c) 2007 by Miroslav "Misko" Skoric, YT7MPB.
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<p>
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Permission is granted to copy, distribute and/or modify this document
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under the terms of the GNU Free Documentation License, Version 1.1 or any
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|
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