Date: 26 Sep 2001 16:46:45 +0100 From: "=?iso-8859-1?Q?Jo=E3o_Pagaime?=" <jpsp@fccn.pt> To: freebsd-isp@freebsd.org Subject: Fw: SSH2 dies when idle Message-ID: <0ca401c146a2$723de5f0$dc0788c1@jpsp2>
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Hello all,
I remember someone set a call-back for me
to reply to his email, if I got to solve this problem,
but I deleted his email, so here it is anyhow.
The problem was a statefull firewall that closed
idle connections older than one hour.
The solution was to make the server start the
TCP keep-alive algorithm earlier (75 seconds for instance
instead of 2 hours), through a sysctl command, like this:
$ sysctl -w net.inet.tcp.keepinit=75000
The bad network channel was just a coincidence
(after the firewall, all network channels aren't so
great...)
--jp
----- Original Message -----
From: "Joćo Pagaime" <jpsp@fccn.pt>
To: <Sent: Friday, September 14, 2001 11:01 AM
Subject: SSH2 dies when idle
> Hello all,
>
> My idle SSH sessions sometimes die out, when connected
> to some servers reachable through a not-so-good
> network channel (1% packet loss and big jitter)
>
> I wouldn't like to totally desconfigure TCP Keep
> alives on those SSH sessions, but would like
> to decrease it's sensibly.
>
> Has anybody had the same problem and come up
> with a solution?
>
> Thanks,
> Joao
>
> PS: SSH version is 2.0.13
>
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