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Florian Forster edited this page Nov 21, 2023 · 1 revision
Name: TCPConns plugin
Type: read
Callbacks: config, init, read
Status: supported
FirstVersion: 4.2
Copyright: 2007–2008 Florian octo Forster, 2008 Michael Stapelberg
License: GPLv2, BSD License
Manpage: collectd.conf(5)
See also: List of Plugins

The TCPConns plugin counts the number of TCP connections to or from a specified port. Typically the connections where you specify the local port are incoming connections while the connections where you specify the remote port are outgoing connections.

Synopsis

Single port

 <Plugin "tcpconns">
   ListeningPorts false
   LocalPort "25"
   RemotePort "25"
 </Plugin>

Multiple ports

 <Plugin "tcpconns">
   ListeningPorts false
   LocalPort "25"
   LocalPort "22"
 </Plugin>

All listening ports

 <Plugin "tcpconns">
   ListeningPorts true
 </Plugin>

Summary of all ports

 <Plugin "tcpconns">
   AllPortsSummary true
 </Plugin>

Example graphs

Plugin-tcpconns-local.png Plugin-tcpconns-remote.png

Dependencies

  • Linux
    • /proc-file system
  • Mac OS X (possibly also other *BSDs)
    • sysctlbyname(3)
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