Hi Guys.
I will describe de steps that I did to solve this problem that I
still don't
understand.
Like my first post, I installed FreeBSD with the install cd
7.0-STABLE-200807-i386-disc1.iso , then I update using
cvsup and the stable supfile and I got the 7.1-PREREALEASE ( I
don't know
why I got 7.1 has a stable using the stablesupfile using RELENG_7 ).
After make world and stuff, I installed ezjail and I start creating
my
jails, then I configure my pf script and I give my jails and user
nat and
etc.
Then I start installing packages to my jails and I start seeing the
TCP
kernel messages that at the first time I ignored.
After I had all the jails working , I realize that my postfix jail
was
leaving almost all the emails in the defer queue with reasons like
"Connection time out", then I realize that the tcp_do_segment
messages were
talking about port 25 connections and not only ftp connections, and
that was
exactly one message per mail in the queue.
After reading some post I decide to Update my machine again to
RELENG_7_0
and I got 7.0-p5 and the problem persist, after that I start
changing sysctl
variables like sack etc.
Today I reinstall the same machine with the 7.0-RELEASE-i386-
disc1.iso and
update to 7.0-p5 and using ezjail I start creating the jails and I
realize
that I was getting the same TCP messages per ftp connections but
seems to be
working ok. After some research and reading I decide to REMOVE the
SCTP
option from the kernel and recompile.
After that I didn't receive any message and today the server is up
and
running with 300 users behind and tons of email with NONE in the
defer
queue.
The configurations of the jails were copy and paste to the new
installation
of the server, the only thing that I change was the install CD.
Is that possible ?, could be the reason ?
SCTP is generating this problem ?
Thanks to all.
On 27-Oct-08, at 9:09 AM, Bjoern A. Zeeb wrote:
On Sun, 26 Oct 2008, Jose Amengual wrote:
Hi,
The problem persist even in stable 7.0, 7.1-PRERELEASE and 7.0-
P5 , the
postfix jail is living all the email in defer queue saying
"Connection Time
Out"
This server give service to 300 clients and the network load os
high.
is there any clue how to resolve this ?
sorry if I am not reading back various links which include mails I
had
sent which are entirely unrelated.
So you are seeing TCP problems. And you are running with a firewall
enabled?
Have you tried tcpdumping and seeing what exactly goes wrong?
do you have any offload stuff enabled (as the subject suggests)?
If so
what happens if you disable this?
/bz
--
Bjoern A. Zeeb Stop bit received. Insert coin for new
game.
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