Question : SNMP troubleshooting

I installed net-snmp on Ubuntu machine, but i can't seem to pull any data from remote snmp agents.
I am using a nagios plugin to test for that, but it timesout.

How can i verify that my SNMP server is running and how do i verify if my SNMP agent is running?
If you can give a way to test my snmp confgurations
Please advise, Thanks.

p.s. when i ran

ps aux | grep snmpd

i didn't get any results... so i am guessing my snmp daemon isn't running...

Answer : SNMP troubleshooting

issue command:

     netstat -anl

look for something like:

     udp        0      0 0.0.0.0:161                 0.0.0.0:*