Bug 4481 - when accessing a rh6.0 machine from behind a firewall disconnect after a maximum of 30 minutes idle
Summary: when accessing a rh6.0 machine from behind a firewall disconnect after a maxi...
Alias: None
Product: Red Hat Linux
Classification: Retired
Component: telnet
Version: 6.0
Hardware: i386
OS: Linux
Target Milestone: ---
Assignee: Florian La Roche
QA Contact:
Depends On:
TreeView+ depends on / blocked
Reported: 1999-08-11 19:16 UTC by torbin
Modified: 2008-05-01 15:37 UTC (History)
0 users

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Clone Of:
Last Closed: 1999-09-05 06:38:41 UTC

Attachments (Terms of Use)

Description torbin 1999-08-11 19:16:56 UTC
Recently upgraded a server from Redhat 5.2 to Redhat 6.0.
The server is in front of the local firewall machine and
when telnetting from behind the firewall will be
disconnected from the server after a maximum of 30 minutes
of being idle. If accessed from an outside source telnet is
not disconnected even after hours of being idle, also a
Redhat 5.2 machine that has not been upgraded does not
disconnect the telnet sessions from behind the firewall.

Comment 1 Preston Brown 1999-08-23 15:28:59 UTC
are you using tcsh or bash as your shell?

Comment 2 torbin 1999-09-05 06:38:59 UTC
we use bash as the default shell

Comment 3 Pekka Savola 2000-07-16 20:35:15 UTC
This is almost certainly a problem in your firewall.  For example, Linux
Firewalls disconnect idle TCP connections after certain period of time unless
keepalive messages are sent.

If the firewall in question is Linux, you might want to check out 'ipchains -M'.

Also, you could try to downgrade your 6.0 -system's telnet RPM to one from 5.2,
to see if you can isolate the problem.

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