Handling SNMP traps with Nagios

WARNING: Work in progress

Capture and deal with snmp traps, applicable to Debian and Ubuntu.

1. run snmptrapd which listens on UDP port 162 on all IPv4 interfaces.

vi /etc/default/snmpd
TRAPDRUN=yes
:wq
vi /etc/snmp/snmptrapd.conf

(incomplete - see http://nagios.sourceforge.net/docs/1_0/int-snmptrap.html)

/etc/init.d/snmpd restart
ps ax | grep snmp

2. in other systems snmpd.conf put

trapsink 192.168.1.103 community
proc puppetd

where IP is the address of the snmpdtrapd system and community is the comm string and puppetd is the process we want to monitor.