How to install and configure SNMP into Ubuntu 12.04 LTS
Change to a root shell.
sudo -s
Install the SNMP Daemon.
apt-get install snmpd
Make a backup of the config file by moving it.
mv /etc/snmp/snmpd.conf /etc/snmp/snmpd.conf.orig
Edit a new file with source name.
vi /etc/snmp/snmpd.conf
Add the following text changing it to suit your details.
rocommunity public
syslocation “Country;City;Building;Rack no;physical;host name”
syscontact sysadmin@yourfqdn.tld
Make a change to the /etc/default/snmpd file
vi /etc/default/snmpd
look for and disable the line below by inserting # at the front of the line
#SNMPDOPTS=’-Lsd -Lf /dev/null -u snmp -g snmp -I -smux -p /var/run/snmpd.pid’
Insert this line of text.
SNMPDOPTS=’-Lsd -Lf /dev/null -u snmp -I -smux -p /var/run/snmpd.pid -c /etc/snmp/snmpd.conf’
simply restart the service:
service snmpd restart
You are good to go, you can test with snmpwalk using this command:
snmpwalk -v2c -c PUBLIC localhost
Link to VI cheat sheet