lkml.org 
[lkml]   [2001]   [Nov]   [6]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
From
Date
SubjectRe: ip_conntrack & timing out of connections
the tcp dimeout is 60 seconds and the ip_conntrack timeout is 120 seconds.

I ran into this myself a couple days ago and have sent the info to Rusty
and to the netfilter mailing list (although only to the list this morning
so I don't know if there is a response there yet)

David Lang

On Tue, 6 Nov 2001 pcg@goof.com wrote:

> Date: Tue, 6 Nov 2001 12:19:47 +0100
> From: pcg@goof.com
> To: linux-kernel@vger.kernel.org
> Subject: ip_conntrack & timing out of connections
>
> linux-2.4.13-ac5 (other versions untested) has this peculiar behaviour: If I
> "killall -STOP thttpd", I, of course, still get connection requests which
> usually time out:
>
> tcp 238 0 217.227.148.85:80 213.76.191.129:3120 CLOSE_WAIT
> tcp 162 0 217.227.148.85:80 213.76.191.129:3128 CLOSE_WAIT
> tcp 238 0 217.227.148.85:80 213.76.191.129:3136 CLOSE_WAIT
> tcp 162 0 217.227.148.85:80 213.76.191.129:3152 CLOSE_WAIT
> tcp 134 0 217.227.148.85:80 66.42.121.15:3305 CLOSE_WAIT
> tcp 162 0 217.227.148.85:80 213.76.191.129:3160 CLOSE_WAIT
> tcp 279 0 217.227.148.85:80 62.83.11.19:2742 CLOSE_WAIT
>
> however, after some time, I get many of these messages:
>
> Nov 6 02:39:55 doom kernel: ip_conntrack: table full, dropping packet.
>
> /proc/net/ip_conntrack has lots of connections like these:
>
> tcp 6 430665 ESTABLISHED src=213.76.191.129 dst=217.227.148.85 sport=3881 dport=80 src=217.227.148.85 dst=213.76.191.129 sport=80 dport=388 1 [ASSURED] use=1
>
> that is, connections to port 80. a grep dport=80 in ip_conntrack gives me
> 3768 lines, where netstat -t only shows 159 connections, so it seems that
> conntrack has a problems with time-outs (or something similar).
>
> --
> -----==- |
> ----==-- _ |
> ---==---(_)__ __ ____ __ Marc Lehmann +--
> --==---/ / _ \/ // /\ \/ / pcg@goof.com |e|
> -=====/_/_//_/\_,_/ /_/\_\ XX11-RIPE --+
> The choice of a GNU generation |
> |
> -
> To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at http://vger.kernel.org/majordomo-info.html
> Please read the FAQ at http://www.tux.org/lkml/
>
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2005-03-22 13:12    [W:0.072 / U:0.116 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site