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...... This website helps you use the same HNET RELAY services used by hundreds of HNET users all over
...... the globe, without having to configure your computer or mainframe to physically connect to the
...... worldwide HNET NJE network.
......
...... However, this website only gives you half the fun. Join HNET with your Linux, MVS, VM/370, z/OS,
...... z/VM, VMS, Solaris or Windows computer and chat with hundreds of other users and exchange files
...... and gossip. It's fun, but more importantly, it's also GLUTEN FREE.
......
...... WHAT IS THIS WEBISTE???
...... =======================
......
...... This website is hosted on NJE node RELAY. It started when new open source software appeared that allows
...... to connect my 1974 vintage IBM VM/370 mainframe to other mainframes using the IBM NJE protocol.
...... From there it grew to hundreds of mainframes and computers connecting with the IBM NJE protocol for fun
...... and peace among the peoples of this planet.
......
...... NJE allows for messaging, remote command execution, and file transfer and I added some services just like it used
...... to be with the BITNET academic world-wide network of the 80s. So, I started writing a collection
...... of services under a special HNET node called RELAY. If you landed on this page, you are using RELAY
...... right now! RELAY is a relaying service between the HNET NJE network and the world wilde Internet.
...... RELAY provides many of the services you can use on this site by getting text-only information from
...... from the web and then sending it to whoever is requesting that information on HNET.
......
......
...... Over time I also wrote a RELAY CHAT server, TRICKLE file server, a node lookup service, and much more.
......
...... STARGATE
...... ========
......
...... In recent months, a new mainframe connection protocol has been released: STARGATE.
...... More about that soon here!
......
......
...... You find most of the HNET users happily chatting on Discord here: https://discord.gg/eyRjj4t
......
...... WHAT IS BITNET
...... ==============
...... An RSCS Tutorial
...... or
...... The DOs and DONT's of BITNET
...... by
...... Daniel Oliverfeld
...... ca. 1985
...... Weizmann Institute of Science
...... Rehovot, Israel
......
...... This article is meant to explain the "ins and outs" of
...... RSCS/N - Remote Spooling Communications Subsystem /
...... Networking (a real mouthful); the thing that BITNET is based
...... on. Without RSCS/N, we would still be in the stone ages of
...... sending messages to local users and never knowing the
...... pleasure of logging on and having 10 pieces of mail from all
...... over the world waiting in our virtual readers.
...... 1) Large files - have a tendency to block the network.
...... RSCS/N works on the basis of SIFO (you've heard of LIFO,
...... FIFO and GIGO - so now you have another) - smallest in,
...... first out. Before RSCS/N sends any file over a link, it
...... orders the files for that link in size order with the
...... smallest being at the top of the heap. It then sends the
...... smallest file over the link and then repeats the process.
...... But when a very large file arrives at the top of the queue
...... (nothing else is there), it begins to be transmitted and
...... RSCS/N will not transmit any other file until the large file
...... is completed. If the transmission time is an hour, then all
...... small files that arrive at that node to be transmitted will
...... be held up until the large file is sent over. In general,
...... when you have a large file, try to split it up into smaller
...... chunks. ÕNote: File PRIORITY is dominant over file SIZE
...... -Ed.þ
...... 2) Priorities - As many of you have found out, RSCS/N
...... allows users to specify the priority of a file for
...... transmission through the network. In general, MAIL files
...... get sent with a priority of 50 and NOTE acknowledgements get
...... sent with a priority of 90. If you have a very large module
...... that cannot be broken up into smaller pieces, why not send
...... it with a priority of 99?
...... For those unfamiliar with the TAG command:
...... CP TAG DEV {PUN³PRT} nodename vmuserid 99
...... 3) QBIT - Many users have come to enjoy the QBIT
...... CHATTER=YES command. But it too can harm the network if
...... used unwisely. Suppose you have 100 users in your NAMES
......
...... PAGE 7
...... file with CHATTER=YES, and you do a QBIT with CHATTER=YES.
...... A hundred CPQ USER commands will be going out over the
...... network (each command and message buffer is 160 bytes long,
...... in case you were ever interested), and you will receive in
...... return 100 responses from various nodes in the network.
...... These CPQ USER commands will usurp the line away from file
...... transmission. Have you ever noticed that when you send a
...... CPQ U or a CPQ T to a relatively close node the response
...... comes back in 2 minutes instead of the normal 3 or 4
...... seconds? You figure it is a glitch and when you try it
...... again, network response time is back to normal. The reason
...... this occurred was because some user issued a QBIT
...... CHATTER=YES with many users listed and you had the
...... misfortune of being queued behind him.
...... The author of QBIT, Yossie Silverman (VSYOSSIE@WEIZMANN),
...... has modified QBIT to count the number of CPQ USER commands
...... you have sent over the network in the past hour and if it
...... exceeds 100, QBIT starts asking you to be kind to the
...... network and stop using QBIT.
...... 4) Chat - There are various Chat server machines located
...... throughout the network as Henry Nussbacher (VSHANK@WEIZMANN)
...... has brought to everyones attention. To summarize his
...... lengthy tirades, as you get closer to the node that is the
...... Chat server machine, the RSCS/N links begin to get
...... overloaded with rebroadcasted messages. William Guttenplan
...... (BILLY@BMACADM) even mentioned to Henry that there was a
...... time when there were about 15 users on his Chat and *NO*
...... files were able to come across the RSCS/N link for the 4
...... hours that people were chatting. Currently, various Chat
...... authors have implemented usage limitations (message counts,
...... access times). Hopefully in the future, CUNY/BITNIC will
...... come through with a better solution. In the meantime,
...... please exercise some restraint when using a Chat server.
...... 5) Chain letters - This area has become very popular via
...... the local post office and currently it is considered "cute"
...... to send out an electronic chain letter. This type of
...... activity never advanced anyones computer knowledge, nor did
...... it bring together people of similar interests (like Chat
...... does). Chain letters are just a plain abuse of the network
...... and falls into the category of obscene messages and mass
...... mailings to 800 Bitnauts users looking for new games.
...... Now that you know what you can do to help BITNET out, let
...... me leave you with one thing that you can point out to your
...... computer center if it happens. As with all TP lines, I/O
...... errors can occur. In general, if the error count becomes
...... too high, then you probably have a loose wire or a noisy
...... Telco line. How can you help out? There is a command:
...... SM rscsid Q linkid SUM
......
...... PAGE 8
...... The response from RSCS/N will indicate how many blocks
...... were sent (TOT=nnnnnnnn), how many blocks sent were flagged
...... as errors (ERRS=nnnnnnnn), and how many timeouts have
...... occurred on the link (TMOUTS=nnnnnnnn). Take the TOT and
...... the ERRS and add them together. Then see what percentage of
...... that number were blocks that were sent in error (Equation:
...... errs/errs+tot). If the percentage is higher than 10%, you
...... should contact your computer center and inform them that
...... they have a communications problem.
...... Well, I hope this has helped you in understanding more of
...... how RSCS/N works and what is considered harmful in a large
...... network like BITNET.
......
......
...... RELAY SERVICES AS OF TODAY
...... ==============================
......
...... HNET RELAY services available as of May 2024
...... Current RELAY services require RELAY EXEC v4.7
......
......
...... TOP STATS UNAME INFO
...... WEATHER|city NEWS bbc|npr NEWTON|expression PI
...... FORECAST|city STOCK|symbol MOON *MOVIE|name*
...... DICTIONARY|word THESAURUS|word MOVIE|name FORTUNE
...... VMCOM MAZE QUEEN MANDELBROT
...... SYSOP UPGRADE ROUTE AMICABLE
...... MERSENNE FACTORS SUDOKU HELP
...... CALENDAR|mm|yyyy RECENT PS
...... WIKI word LOOKUP nodename MARKET
...... HOROSCOPE|sign TICKER HELP (shows this text)
...... ARRIVALS|city TAIL|N4869U WINE|Margaux|85
...... SMS EXCHANGE OIL
...... ... and all of the above for free!!
......
...... @@@
......
...... RELAY CHAT relay@zvm72msh or more here: https://github.com/moshix/BITNETServices
...... Node Information http://moshix.dynu.net
...... TRICKLE file server trickle@fileserv, trickle@houcics
...... Eliza/NJE eliza@zvm72msh, eliza@houcics https://github.com/moshix/BITNETServices
......
...... moshix - August 18, 2024
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