Check manual page of tcp_conn_stats

Number of TCP Connections per State

Distribution Official part of Checkmk
License GPLv2
Supported Agents Linux
This check monitors the number of TCP connections in the various possible states, which are: ESTABLISHED, SYN_SENT, SYN_RECV, LAST_ACK, CLOSE_WAIT, TIME_WAIT, CLOSED, CLOSING, FIN_WAIT1, FIN_WAIT2.


One service is created if there is at least one TCP connection. On agents supporting {tcp_conn_stats} this should always be the case since at least the connection to the agent should be shown.