Re: Connection timeouts with SSH and CVS

From: Adam Aube (aaube01_at_baker.edu)
Date: 12/31/04

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    To: debian-user@lists.debian.org
Date: Thu, 30 Dec 2004 19:32:22 -0500

    Norman Davis wrote:

    > On Wed, 29 Dec 2004 21:12:01 -0700, Norman Davis
    > <norman.j.davis.jr@gmail.com> wrote:

    >> I'm having problems using SSH and CVS at my work. The connections
    >> timeout. However I can browse the internet with Mozilla just fine.

    >> But this only happens on my network at work. When I dial in to my ISP
    >> from home, in SSH and CVS both work fine.

    >> I can ping both these addressess just fine.

    > I've got some more info:
    > On this laptop with Debian Testing installed, when I'm using the
    > network at work, I can't access my POP mail server from Mozilla Mail.
    > I also can't access the checkout section of any of my online retailers
    > when using the Mozilla browser. But when I use my dialup ISP, they
    > both work fine.

    > So whats in common between connections for POP mail, SSH, CVS, and
    > retail checkout pages?

    They all use TCP. Some TCP-related parameter is likely to blame.

    You've checked ECN (which was already off), so that isn't the issue. What
    kernel are you using? Post the output of the following command:

    head -v `ls /proc/sys/net/ipv4/tcp*`

    Adam 

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