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Re: Postfix suddenly stopped working

From: "Ben Cadieux" <ben.cadieux@xxxxxxxxx>
Date: Thu, 27 Jul 2006 13:30:28 -0700

How could you be using 1.6 release and not have updated anything?

- BC

On 7/27/06, Petr Janda <elekktretterr@xxxxxxxxxxxxxx> wrote:
I use Postfix on my mailserver, and all of sudden(no change in configs,
no software updates done) it stopped working.

Thunderbird says that it is Connected to the server for about 2 minutes
and then connection failed. Output of tcpdump shows this:

porncatalog# tcpdump -vvv port 25
tcpdump: listening on fxp0, link-type EN10MB (Ethernet), capture size 96
04:56:29.066370 IP (tos 0x0, ttl  63, id 37069, offset 0, flags [none],
length: 64) > porncatalog.smtp: S [tcp sum ok]
4044775792:4044775792(0) win 57344 <mss 1460,nop,wscale
0,nop,nop,sackOK,nop,nop,timestamp 4465114 0>
04:56:29.066494 IP (tos 0x0, ttl  64, id 843, offset 0, flags [none],
length: 64) porncatalog.smtp > S [tcp sum ok]
1108842486:1108842486(0) ack 4044775793 win 57344 <mss 1460,nop,wscale
0,nop,nop,timestamp 70743 4465114,nop,nop,sackOK>
04:56:29.067446 IP (tos 0x0, ttl  63, id 37070, offset 0, flags [none],
length: 52) > porncatalog.smtp: . [tcp sum ok] 1:1(0)
ack 1 win 57920 <nop,nop,timestamp 4465114 70743>

It seems that postfix fails to respond for some very strange reason. Can
someone give me some clues? I tried restarting server, makes no
difference. It only happens with Postfix, all my other services work
correctly. Running DF 1.6-RELEASE.

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