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Re: weirdness with TCP timeouts?

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On 08/09/14 17:54, The Natural Philosopher wrote:
> On 08/09/14 17:35, Tim Watts wrote:
>> On 08/09/14 11:25, The Natural Philosopher wrote:
>>
>>> The second issue was that ssh sessions to my remote server were timing
>>> out. They never used to, but I pulled the ssh keepalive down to a couple
>>> of minutes and now the session stays up.
>>
>> As that is possibly a reproducible and simple problem, could you put the
>> timeout up and run a tcpdump against it until it dies and see if
>> anything happens at the end?
>>
>
> Mmm tcpdump is a thought.
>
> as is netstat..
>
> netstat -a | grep ESTABLISHED
> tcp        0      0 192.168.0.6:37903       my.private.server:ssh
> ESTABLISHED
> tcp        0      0 192.168.0.6:55445       four.schnuerpel.eu:nntp
> ESTABLISHED
> tcp        0      0 192.168.0.6:667         tempest:nfs ESTABLISHED
> tcp        0      0 192.168.0.6:55463       four.schnuerpel.eu:nntp
> ESTABLISHED
> tcp6       0      0 ip6-localhost:41281     ip6-localhost:ipp ESTABLISHED
> tcp6       0      0 ip6-localhost:ipp       ip6-localhost:41281 ESTABLISHED
>
> That shows that t'bird IS keeping nntp alive.
>
> My guess is that the far end or the local end is timing out...
>
> MM. a few other other  connections have popped up there in later scans.
>
> I wonder WTF is going on..
>
>
Further to that, I got the error again, one nntp connection vanished  on 
successful reconnection two more appeared.

Hmm.




-- 
Everything you read in newspapers is absolutely true, except for the 
rare story of which you happen to have first-hand knowledge. – Erwin Knoll

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weirdness with TCP timeouts? The Natural Philosopher <tnp@invalid.invalid> - 2014-09-08 11:25 +0100
  Re: weirdness with TCP timeouts? Tim Watts <tw_usenet@dionic.net> - 2014-09-08 17:35 +0100
    Re: weirdness with TCP timeouts? The Natural Philosopher <tnp@invalid.invalid> - 2014-09-08 17:54 +0100
      Re: weirdness with TCP timeouts? The Natural Philosopher <tnp@invalid.invalid> - 2014-09-08 18:06 +0100
  Re: weirdness with TCP timeouts? Johnny <johnny@invalid.net> - 2014-09-08 13:25 -0500
    Re: weirdness with TCP timeouts? The Natural Philosopher <tnp@invalid.invalid> - 2014-09-08 19:27 +0100
  Re: weirdness with TCP timeouts? Chick Tower <c.tower@deadspam.com> - 2014-09-19 02:33 +0000
    Re: weirdness with TCP timeouts? The Natural Philosopher <tnp@invalid.invalid> - 2014-09-19 06:30 +0100

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