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Postfix

Postfix

SNMP Extend

  1. Copy the shell script, postfix-queues, to the desired host

    wget https://github.com/librenms/librenms-agent/raw/master/snmp/postfix-queues -O /etc/snmp/postfix-queues

  2. Copy the Perl script, postfixdetailed, to the desired host

    wget https://github.com/librenms/librenms-agent/raw/master/snmp/postfixdetailed -O /etc/snmp/postfixdetailed

  3. Make both scripts executable

    chmod +x /etc/snmp/postfixdetailed /etc/snmp/postfix-queues

  4. Edit your snmpd.conf file and add:

    extend mailq /etc/snmp/postfix-queues
extend postfixdetailed /etc/snmp/postfixdetailed

  5. Restart snmpd.

    sudo systemctl restart snmpd

  6. Install pflogsumm for your OS.

  7. Make sure the cache file in /etc/snmp/postfixdetailed is some place that snmpd can write too. This file is used for tracking changes between various values between each time it is called by snmpd. Also make sure the path for pflogsumm is correct.

  8. Run /etc/snmp/postfixdetailed to create the initial cache file so the first value is then correct.

Note

that each time /etc/snmp/postfixdetailed is ran, the cache file is updated, so if this happens in between LibreNMS doing it then the values are then wrong for that polling period.

LibreNMS discovers the application automatically, as described at the top of the page. If the discovery fails, do the steps under the SNMP Extend heading at the top of the page.

Note

If using RHEL for your postfix server, qshape must be installed manually as it is not officially supported. CentOs 6 rpms seem to work without issues.