Appendix D. Probes258Field ValueCritical Maximum Number RunningCritical Minimum Number RunningTable D.25. Linux::Process Running settingsD.5.12. Linux::Swap UsageThe Linux::Swap Usage probe monitors the swap partitions running on a system and reports thefollowing metric:• Swap Free — The percent of swap memory currently free.Requirements — The Red Hat Network Monitoring Daemon (rhnmd) must be running on themonitored system to execute this probe.Field ValueTimeout* 15Warning Minimum Swap FreeCritical Minimum Swap FreeTable D.26. Linux::Swap Usage settingsD.5.13. Linux::TCP Connections by StateThe Linux::TCP Connections by State probe identifies the total number of TCP connections, as well asthe quantity of each in the following states:• TIME_WAIT — The socket is waiting after close for remote shutdown transmission so it may handlepackets still in the network.• CLOSE_WAIT — The remote side has been shut down and is now waiting for the socket to close.• FIN_WAIT — The socket is closed, and the connection is now shutting down.• ESTABLISHED — The socket has a connection established.• SYN_RCVD — The connection request has been received from the network.This probe can be helpful in finding and isolating network traffic to specific IP addresses or examiningnetwork connections into the monitored system.The filter parameters for the probe let you narrow the probe's scope. This probe uses the netstat-ant command to retrieve data. The Local IP address and Local port parameters use values inthe Local Address column of the output; the Remote IP address and Remote port parameters usevalues in the Foreign Address column of the output for reporting.Requirements — The Red Hat Network Monitoring Daemon (rhnmd) must be running on themonitored system to execute this probe.Field ValueLocal IP address filter pattern listLocal port number filter
