Hi guys,

In the night of October 28 the following update has been automatically installed:


Oct 28 04:09:44 Updated: psa-updates-11.0.9-rhel6.build110141001.11.noarch

Since that update my postfix service refuses to start

It continuously comes back with

 

Oct 28 04:10:18 adm postfix/postfix-script[7708]: stopping the Postfix mail system
 
Oct 28 04:10:18 adm postfix/postfix-script[7711]: waiting for the Postfix mail system to terminate
 
Oct 28 04:10:18 adm postfix/master[17630]: terminating on signal 15
 
Oct 28 04:10:20 adm postfix/postfix-script[7786]: starting the Postfix mail system
 
Oct 28 04:10:20 adm postfix/master[7787]: fatal: bind 0.0.0.0 port 25: Address already in use
 
Oct 28 04:10:39 adm postfix/postfix-script[8046]: fatal: the Postfix mail system is not running
 
Oct 28 04:10:39 adm postfix/postfix-script[8117]: starting the Postfix mail system

 


It cannot bind to port 25 although there is no service running on this port.
I have done extensive bug tracking with the help of some linux gurus and nobody seems to understand what the cause of this could be.

Some attempts

killall -9 postfix
postfix: no process killed

netstat -tupan |grep 25
doesn't show anything running on port 25

nc -vlp 25
doesn't show anything running on port 25

lsof -i tcp:25
doesn't show anything running on port 25

fuser 25/tcp
doesn't show anything running on port 25

sudo telnet localhost 25
Trying 127.0.0.1...
telnet: connect to address 127.0.0.1: Connection refused

SELinux status: disabled
getenforce
Disabled

/etc/services contains
smtp 25/tcp mail
smtp 25/udp mail
as normal

psa-pc-remote and opendkim
running normally

lsof -i tcp:12768
COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME
psa-pc-re 5233 postfix 3u IPv4 12889 0t0 TCP adm.scul.net:12768 (LISTEN)

lsof -i tcp:8891
COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME
opendkim 5030 opendkim 3u IPv4 12175 0t0 TCP adm.scul.net:ddi-tcp-4 (LISTEN)

sudo strace -ebind postfix start
bind(4, {sa_family=AF_NETLINK, pid=0, groups=00000000}, 12) = 0
--- SIGCHLD (Child exited) @ 0 (0) ---
--- SIGCHLD (Child exited) @ 0 (0) ---
--- SIGCHLD (Child exited) @ 0 (0) ---
--- SIGCHLD (Child exited) @ 0 (0) ---
--- SIGCHLD (Child exited) @ 0 (0) ---
postfix/postfix-script: starting the Postfix mail system
--- SIGCHLD (Child exited) @ 0 (0) ---

strace -f output of postfix
http://www.speedyshare.com/9RTsf/putty-Copy.log

reinstall attempt of postfix
sudo yum reinstall postfix
Loaded plugins: downloadonly, fastestmirror, security
Setting up Reinstall Process
Loading mirror speeds from cached hostfile
* base: mirror.nl.webzilla.com
* epel: mirror.nl.leaseweb.net
* extras: mirror.amsiohosting.net
* updates: mirror.denit.net
Installed package 2:postfix-2.8.4-12052415.x86_64 (from PSA_11_0_9-dist) not available.
Error: Nothing to do

/usr/local/psa/admin/sbin/mchk --with-spam
[sudo] password for xxx;
==> Checking for: mailsrv_conf_init... ok
==> Checking for: mail_handlers_init... ok
==> Checking for: mailsrv_entities_dump... ok
==> Checking for: mail_admin_aliases... ok
==> Checking for: mail_auth_dump... ok
==> Checking for: mailman_lists_dump... ok
==> Checking for: mail_kav8_restore... ok
==> Checking for: mail_responder_restore... ok
==> Checking for: mail_postfix_transport_restore... ok
==> Checking for: mail_spam_restore... not exists
==> Checking for: mail_grey_restore... ok
==> Checking for: mail_mailbox_restore... ok
==> Checking for: mail_spf_restore... ok
==> Checking for: mail_dk_restore... ok
==> Checking for: mail_drweb_restore... not exists

Tried swapping qmail for postfix and back. No dice.
http://pastebin.com/6Xw0CGWF

sendmail is not installed
fail2ban is not installed

I have stopped xinet.d , flushed iptables, restarted the server multiple times

Even done rootkit checks, nothing..

HELP!