Using SNMP to monitor Windows hosts to install Simple Network Management Protocol (SNMP)-based Windows components on a monitored server, take a Windows 7 system as an example: first, locate the uninstall program in the Control Panel;
Click Turn Windows features on or off in the pop-up window;
Click OK after checking the Simple Network Management Protocol (SNMP) entry in the pop-up window and follow the prompts to complete the installation.
When you are finished installing the SNMP service, right-click Computer to select Manage
Locate the service in the left-hand navigation bar in the Computer Management window that pops up, and locate the SNMP service item on the right.
Double-click the SNMP Service option and switch to the Security tab in the pop-up window, as shown above, adding "accepted community names" and receiving SNMP packets from those hosts.
"Accepted community name" is any character you define, and the SNMP packets sent by the host are defined as your Nagios server. The SNMP service for the Windows host on the monitor side is configured to complete.