Telnet from a Dial-Up Modem Pool

From: Marco Wilkins (marco_wilkins@hotmail.com)
Date: Mon Nov 24 2003 - 23:22:30 EST


Hi Admins,

I have a CISCO dial-up modem pool which we use for remoe access
in case the secure VPN line is broken.

The dial-up modem pool has a LAN connection to multiple SUN/Solaris
servers. At dial-up it does a telent to a specified server.
When such a telent session is not normally closed
(normally closed means with exit from the UNIX session),
for example killing the screen by clicking the top right
hand X button, the telnet tcp connection is stiil in
"established" mode (seen this with netstat -a).
If another user dial-up into the modem pool,
the modem automatically connects the user to
the last used session server and with the user ID
of the previous user without asking for login
and password.
This is because the old telent session between the
dial-up modem pool and the Solaris server is still open.

Is there any way to prevent this?
That is to force the previous telent to be closed
if the session is not normally closed?

Any help will be appreciated.
TIA,
Marco

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