This is the bare minimum to set up snmp on Ubuntu to allow monitoring from Cacti or similar apt-get update apt-get install snmpd snmp-mibs-downloader snmpconf - Choose /etc/snmp/snmpd.conf - Choose snmpd.conf - Choose 3 for 'Access Control' - Choose 3 for RO community - Type community name - Press enter or type allowed network/host - Press enter to allow all OID mv snmpd.conf /etc/snmp/ service snmpd restart