Install the SNMP daemon.
aptitude install snmpd
To check which version of SNMP daemon that was installed, run the following
aptitude show snmpd
Make a backup of the original SNMP daemon configuration file.
cp /etc/snmp/snmpd.conf /etc/snmp/snmpd.conf_ORIGINAL
Modify the SNMP daemon configuration file
vim /etc/snmp/snmpd.conf
The above command should also create the same file, if the configuration file does not exist. Append the following lines. Adjust the values to the SNMP community string that you use. This assumes SNMP version 2
rocommunity public
syslocation "Your Location"
syscontact admin@domain.com
Modify the /etc/default/snmpd file. Duplicate the the following line then uncomment it (the original line). You always want to make a copy of the original line.
SNMPDOPTS='-Lsd -Lf /dev/null -u snmp -I -smux -p /var/run/snmpd.pid'
Append the following to the duplicate line. Basically, point to the SNMP configuration file.
-c /etc/snmp/snmpd.conf'
It should look like the following:
SNMPDOPTS='-Lsd -Lf /dev/null -u snmp -I -smux -p /var/run/snmpd.pid -c /etc/snmp/snmpd.conf'
Two ways to restart the snmpd service
service restart snmpd
or
/etc/init.d/snmpd restart
While you poll the machine, run this on the server to check the status
tcpdump -i eth0 "src or dst [ip address of SNMP polling server]"