topic Re: timeout on telnet at 60 minutes in Operating System - HP-UX

timeout on telnet at 60 minutes

Ratzie — Tue, 27 Feb 2007 11:26:21 GMT

First, yes I know telnet is insecure.
But, this is needed.

HP 11.11 trusted system
Telnet is timing out after 60 minutes.

We have changed the /etc/profile to:
TMOUT=0

Re: timeout on telnet at 60 minutes

Geoff Wild — Tue, 27 Feb 2007 12:30:00 GMT

In profile, is it set as:

TMOUT=0
export TMOUT

Rgds...Geoff

Re: timeout on telnet at 60 minutes

A. Clay Stephenson — Tue, 27 Feb 2007 12:37:11 GMT

From the shell, echo $TMOUT. It really doesn't matter what you put in /etc/profile or .profile because the value that counts is the current value. If that is 0 then TMOUT is not your problem. TMOUT would only come into play when you are back at the shell prompt. For example, if you were running vi, you wouldn't be logged out by TMOUT regardless of the amount of idle time.

If you are getting knocked off within applications then you need to look for some sort of watchdog daemon that looks at the modification time of /dev/tty. You also might be the victim of idle timeouts in your routers or firewall. Do local users get knocked off as well as remote users?

Re: timeout on telnet at 60 minutes

OldSchool — Tue, 27 Feb 2007 13:14:36 GMT

what's the output of the following:

ndd -get /dev/tcp tcp_keepalive_interval

Re: timeout on telnet at 60 minutes

Ratzie — Tue, 27 Feb 2007 14:07:37 GMT

root@host # ndd -get /dev/tcp tcp_keepalive_interval
7200000