ipv6 port Problem by Dovecot after kernel update [message #44009] |
Tue, 08 November 2011 07:25 |
digidax
Messages: 30 Registered: March 2008
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Hi community,
At the beginning, I run on the node a Centos 5.2 with OVZ kernel 2.6.18-238.9.1.el5.028stab089.1
There are three container generated from centos-5-x86_64-minimal-5.2-20090219.tar.gz and used as mailserver with Postfix, Dovecot, saslauthd, Sieve and Clam-SMTP.
After updating the OVZ kernel to 2.6.18-274.3.1.el5.028stab094.3 no mailservice is available in fact of a problem of SASL and Dovecot. The problem for not starting Dovecot I can analyze: Dovecot say's:
Fatal: listen(::, 143) failed: Address already in use
but a
netstat -tlnp | grep ':143 '
found's no listening services. Now I configured Dovecot with "listen = *" and Dovecot was starting. With SASL I found no solution for this.
I think, that the kernel offers an IPv6 address to dovecot because dovecot is not binded to an static address.
After downgrading to 2.6.18-238.9.1.el5.028stab089.1 all mailserver inside the container are working well.
What is the difference by managing IPv6 support by the new kernel? Do I have any possibilities to disable this at the sysconfig of the node?
best regards
Frank
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