How to enable SNMP on a VMWare ESX Server

To enable SNMP on ESX Server version 3.5:

1. Login as root
2. Edit the snmpd.conf file and add "rocommunity xxxx" where xxxx is your read-only community string). The file is usually located in /etc/snmpd.
3. While you're editing the snmpd.conf file, also add "dlmod SNMPESX /usr/lib/vmware/snmp/libSNMPESX.so"
4. Restart the SNMP daemon - /etc/init.d/snmpd restart

In some cases, you may also need to edit the firewall settings on the ESX server to allow the SNMP traffic through. To do this:

Login as root and issue the following commands:
2. esxcfg-firewall -e snmpd
3. chkconfig snmpd on
4. service snmpd start