snmp__netstat - Munin plugin to monitor the number of TCP network connections on an SNMP device.
Any SNMP-capable device that reports the TCP-MIB::tcpConnState column of tcpConnTable.
As a rule SNMP plugins need site specific configuration. The default configuration (shown here) will only work on insecure sites/devices.
[snmp_*] env.version 2 env.community public
In general SNMP is not very secure at all unless you use SNMP version 3 which supports authentication and privacy (encryption). But in any case the community string for your devices should not be "public".
Please see 'perldoc Munin::Plugin::SNMP' for further configuration information.
The total number of TCP connections in each state. See RFC 793 or the detailed information on the graph page for the meaning of each state.
This plugin requires support for the TCP-MIB (RFC 4022). It reports the contents of the tcpConnState column of tcpConnTable.
#%# family=snmpauto #%# capabilities=snmpconf
Copyright (C) 2006 Lars Strand
Tidied and documented by Matthew Boyle in 2010.