To install snmpd on Ubuntu jesu type

$ sudo apt-get install snmpd

Remove config

$mv /etc/snmp/snmpd.conf /etc/snmp/snmpd.conf.bak

Now lets create new snmpd config file

$ sudo vi /etc/snmp/snpmd.conf

And add two lines to file

rocommunity public
syscontact serveradmin@example.com


Then we should edit /etc/default/snmpd file

$ sudo vim /etc/default/snmpd


Add to line some new option
before
SNMPDOPTS='-Lsd -Lf /dev/null -u snmp -g snmp -I -smux -p /var/run/snmpd.pid'
after
SNMPDOPTS='-Lsd -Lf /dev/null -u snmp -g snmp -I -smux -p /var/run/snmpd.pid -c /etc/snmp/snmpd.conf'

Now restart snmpd
$ service snmpd restart

Well done!