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cedivad
Asked: 2012-04-18 12:39:34 +0800 CST

I can't view any detailed log for Postfix under Centos

  • 772

I've enabled the -v option on master.cf; but still my /var/log/maillog is almost empty. I'm having a problem i have my hard times debugging without any log.

postfix

4 Answers

  1. Best Answer

    is your syslogd setup to log stuff to maillog? like following:

    [alexus@wcmisdlin02 ~]$ grep ^mail /etc/rsyslog.conf 
mail.*                                                  -/var/log/maillog
[alexus@wcmisdlin02 ~]$

    also make sure it's running

    [alexus@wcmisdlin02 ~]$ sudo service rsyslog status
rsyslogd (pid  1356) is running...
[alexus@wcmisdlin02 ~]$
    • 7

  2. I had the same log problem on CentOS-7 with postfix but also with any logger command like: 'logger System testing my log'

    Checking deeper, I found out that Rsyslogd was not listening anymore on /dev/log socket !!!! This can be checked with 'lsof /dev/log'

    I fixed the problem, by forcing /dev/log in /etc/rsyslogd.conf.
    -- after $ModLoad imuxsock -- add this next line input(type="imuxsock" HostName="localhost" Socket="/dev/log")

    This will force usage of /dev/log, which after my last update was no more the default. This is probably a bug. I have the problem with rsyslog-7.4.7-7.el7_0.x86_64 or

    • 7

  3. The problem is that the default Centos 8 install no longer includes rsyslog. The configuration file (/etc/rsyslog.conf) is there, but not the program.

    dnf install rsyslog
systemctl start rsyslog
systemctl enable rsyslog

    worked for me.

    • 2

  4. You can solve this issue with delete maillog file and restart rsyslog service:

    cd /var/log/
rm -f maillog
service rsyslog restart 
service postfix restart

    source: http://forum.centos-webpanel.com/postfix/varlogmaillog-no-data-update-when-mail-incoming-and-outgoing/

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