snmpd – James Batchelor

Asterisk Monitoring Over SNMP

The aim of deploying Zabbix and adding SNMP to Gentoo was to gain better insight on how an Asterisk PBX was performing.

Last of the hurdles was to get data from Asterisk in order to send to Zabbix, however the traditional way of loading the res_snmp.so module in Asterisk was not available, as while the PBX in question utilises Asterisk, its buried under proprietary licensing and a non-standard api, therefore being unable to either add the SNMP module or to query it.

If you are experiencing a similar situation, here is how to extract some stats from Asterisk 16 using SNMP, but without the SNMP module…

Manually install net-snmpd on Gentoo

Recently we’ve moved from an aged Opsview instance to Zabbix for our system health monitoring, which in turn facilitated moving data collector agents from Nagios to snmp.

Many of our PBX’s were deployed from the vendors ISO and so run atop of Gentoo, and it has a couple of issues:

We’ve been told not to “emerge” anything by the vendor, as the base OS on the image is not maintained.
Portage (Gentoo’s package manager) has fallen out of date, meaning even if emerge is attempted, it’ll fail as all repository links are broke.

If faced with the same issue, this is how to install net-snmpd from source, add it a startup service and be able to monitor via snmp…