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Operating System - Tru64 Unix
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Help with disconnecting idle telnet users

Bruce Eley
Advisor

Help with disconnecting idle telnet users

Hi,
My company uses the Tru64 5.1b OS. Our user connect to a program called WMS via a telnet connection. We are in need of being able to have the system disconnect idle user connections that have been idle for approx. 15 minutes. I have tried the TMOUT in /etc/profile but it does not seem to work. Not sure if a change in that file requires a system reboot or not. Any help is greatly appreciated!
9 REPLIES
Steven Schweda
Honored Contributor

Re: Help with disconnecting idle telnet users

> Our user connect to a program called WMS
> via a telnet connection.

You mean they connect to the Tru64 system
using Telnet, log in, and run a program
called WMS? (Or do they Telnet to some
oddball port where WMS is listening?)

> I have tried the TMOUT in /etc/profile but
> it does not seem to work.

Tried how? /etc/profile is a shell start-up
file, so it's read when a login shell is
started. Changing it has no effect on a
_running_ shell.

> Not sure if a change in that file requires
> a system reboot or not.

Only a shell restart. (Loging in again would
be an easy way to start a fresh shell.)

Of course, whether your shell reads
/etc/profile or cares about TMOUT rather
depends on your shell. A C shell ignores
/etc/profile. The classic Bourne shell may
not care about TMOUT.

man sh

man 1b sh | grep 'T.*M.*O.*U.*T'

man 1p sh | grep 'T.*M.*O.*U.*T'

Setting both TMOUT and TIMEOUT might be
useful.
Bruce Eley
Advisor

Re: Help with disconnecting idle telnet users

When the users log in it is using a telnet session on the Tru64 server. At the login the WMS program then runs. This program also resides on the Tru64 server. I did edit the /etc/profile and logged out and back in but it still did not disconnect me during the test. Is the TIMEOUT the same a TMOUT?
Steven Schweda
Honored Contributor

Re: Help with disconnecting idle telnet users

> Is the TIMEOUT the same a TMOUT?

Why trust _me_?

> man sh
> man 1b sh | grep 'T.*M.*O.*U.*T'
> man 1p sh | grep 'T.*M.*O.*U.*T'

Or for more casual exploration:

man 1b sh
man 1p sh

So, which shell(s) are you using?

For testing, you should be able to set the
appropriate variable interactively -- no need
to restart the shell that way.
Kapil Jha
Honored Contributor

Re: Help with disconnecting idle telnet users

You said at login this program run.SO startup script/command for this program for this user must be somewhere in ~user/.profile files.
Can you try puttin TMOUT in .profile file.

Which shell u r using???
How this WMS is starting for user??

BR,
Kapil
I am in this small bowl, I wane see the real world......
Bruce Eley
Advisor

Re: Help with disconnecting idle telnet users

This is what the profile folder in the /usr/dcs forlder has....this where the WMS program has all of its information...does this help any?

Rob Leadbeater
Honored Contributor

Re: Help with disconnecting idle telnet users

Hi Bruce,

You'll be able to find out what shell your users are using by looking at the last field of each line in /etc/passwd

Once you've determined that, it should be feasible to work out which timeout parameter to set...

Cheers,

Rob
Bruce Eley
Advisor

Re: Help with disconnecting idle telnet users

It says /usr/users/dcs:/bin/sh
Rob Leadbeater
Honored Contributor

Re: Help with disconnecting idle telnet users

So you're using the Bourne shell.

As Steven pointed out, you need to be using the TIMEOUT paramter, as shown in the man page for sh.

# man 1b sh

Cheers,

Rob
Bruce Eley
Advisor

Re: Help with disconnecting idle telnet users

Problem fixe...thanks for all the information!