[Gllug] TCP connections not closing
Nix
nix at esperi.org.uk
Tue Nov 11 00:05:30 UTC 2003
On Mon, 10 Nov 2003, Richard Cottrill stated:
>
>> Yes I'm aware about that, I've seen it before.
>> What I don't get is why those particular connections are still hanging
>> off when other ones have timed-out? And probably this is basic tcp stuff,
>> but which machine sets the TTL, the web server or the client?
>
> TTL is an IP layer thing, so it's connectionless and set by whichever
> machine sends that particular packet; ie bot the client and websever
> will set TTL for 'their' packets.
TTL is part of ip_conntrack_proto_tcp, and is thoroughly *not*
connectionless :)
The table I quoted above shows that there are different timeouts for
connections in different states... the TCP-level timeouts are quite
different from the ones being printed here by iptstate.
--
`Me, I want exploding spaceships and pulverized worlds and clashes of
billion-year-old empires *and* competently written sentences.'
--- Matt Austern
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