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To: "Michael R. Wayne" <wayne@staff.msen.com>
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Date: 03 Dec 2004 10:52:40 -0500
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Subject: Re: 130 minute telnet timeout?
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"Michael R. Wayne" <wayne@staff.msen.com> writes:

> Trying to use a portmaster as a reverse console server.  If I do
>    date ; telnet portmaster ; date
> and connect to a port, the connection stays up for 2 hours and
> 10 minutes, then gets
>    Connection closed by foreign host.
> 
> Given this, I suspected the portmaster.  But other people do not
> see the problem.  Today, I tried a telnet from a Windows box and 
> it stayed up for over 4 hours (at which point I killed it).
> 
> So, this suggests that FreeBSD 4.x is doing something.  A quick
> browse through the source code for telnet does not suggest anything.
> Any ideas?  There is no NAT involved.

TCP keepalives?