Re: Tunelling nnimap through ssh shell

[Doug Alcorn <doug@lathi.net>]

Josh Huber <huber@alum.wpi.edu> writes:

> Karl Kleinpaste <karl@charcoal.com> writes:
> 
> > How long is "a long time"?  I use ssh with idle connections for hours
> > and sometimes days at a time, with no ill effects.
> > 
> > Lately, what I'm using is openssh 2.5.2 as distributed with RH7.1, but
> > I don't recall seeing such a problem with the older ssh 1.2.27, either.
> 
> Yeah, this sounds fishy.
> 
> are you *sure* this isn't some NAT box in between that's timing out,
> or something of that sort?

The timeout is about 20 minutes or so.  No, I'm not sure it isn't NAT.
I do know that NAT is involved.  My IMAP server is sitting behind a
linux firewal that is doing ipmasq between the 'net and the dmz.  I
don't know what the default timeout is; but, I just found the syntax
for increasing it.  Hopefully this will fix my problem.  But it still
leaves folks who can't control their firewalls out of luck.
-- 
 (__) Doug Alcorn (mailto:doug@lathi.net http://www.lathi.net)
 oo / PGP 02B3 1E26 BCF2 9AAF 93F1  61D7 450C B264 3E63 D543
 |_/  If you're a capitalist and you have the best goods and they're
      free, you don't have to proselytize, you just have to wait.