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50 lines
2.0 KiB
Plaintext
50 lines
2.0 KiB
Plaintext
rmsg contains a messaging system which can be used to send
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write-like messages to logged-on users. The system can cross machine
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boundaries, so if another machine has the rmsgd program running, you can
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send messages to users on it.
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The system also allows bitnet virtual machine-like 'virtual users'
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to whom any user can send messages and they can answer the messages.
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The rmsgd server makes this possible by allowing a command 'exec' in a users
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.msgconf file, and whenever the user receives a message this command is
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executed and the message is piped to it.
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It is also possible to log incoming and outgoing messages and resend previous
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sent message. You can specify a file to which the last (or every) incoming
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message will be stored.
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Using the programs:
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-------------------
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Rmsgd:
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Rmsgd is the server program for the system. It should be started by root,
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but for now it works even if started by ordinary users, even though
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some capabilities are disabled for security reasons (that is, exec and
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logging of incoming messages, since that would be done by the user-id
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who started rmsgd and not the receiver).
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At any time, there should be only one rmsgd running. It doesn't do any harm
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to have several rmsgds other than the newly-started servers unmap the
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previous and thus the previous servers are unusable.
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The server should be named 'rmsgd' to have it start as a daemon.
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Rmsg:
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Rmsg is the client end of the system. Rmsg is used by ordinary users
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to send messages. For example, rmsg foo@bar hello there ! ^D would
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send a message 'hello there !' to user foo at machine bar. By
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default, rmsg stores the last outgoing message in the user's home
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directory in the file .msgout. Then msg -r user@machine can be used
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to resend the message. Message is normally read from standard input
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until EOF.
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Configuration:
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--------------
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The messages system has many options which the user can set by making
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a file '.msgconf' in her home directory and placing various command in it.
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Read the manual page for rmsg for more information.
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