Specify communities

This policy setting configures a list of the communities defined to the Simple Network Management Protocol (SNMP) service. SNMP is a protocol designed to give a user the capability to remotely manage a computer network by polling and setting terminal values and monitoring network events. A valid community is a community recognized by the SNMP service while a community is a group of hosts (servers workstations hubs and routers) that are administered together by SNMP. The SNMP service is a managed network node that receives SNMP packets from the network. If you enable this policy setting the SNMP agent only accepts requests from management systems within the communities it recognizes and only SNMP Read operation is allowed for the community. If you disable or do not configure this policy setting the SNMP service takes the Valid Communities configured on the local computer instead. Best practice: For security purposes it is recommended to restrict the HKEY_LOCAL_MACHINE -> SOFTWARE -> Policies -> SNMP -> Parameters -> ValidCommunities key to allow only the local admin group full control. Note: It is good practice to use a cryptic community name. Note: This policy setting has no effect if the SNMP agent is not installed on the client computer. Also see the other two SNMP settings: “Specify permitted managers” and “Specify trap configuration”.

Additional Information

  1. Registry path is:

    HKEY_LOCAL_MACHINE -> Software -> Policies -> SNMP -> Parameters -> ValidCommunities

  2. The Administrative Template path is:

    Network -> SNMP


* Making mistakes while changing registry values can affect your system adversely. We recommend you to create a System Restore point before making registry manipulation. If you're new to Registry Editor, read this beginner's guide.
** To locate the registry and administrative template path, checkout beginner's guide.
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