RSyslog Documentation

immark: Mark Message Input Module

Module Name:immark
Author:Rainer Gerhards <>


This module provides the ability to inject periodic “mark” messages to the input of rsyslog. This is useful to allow for verification that the logging system is functioning.

Configuration Parameters


Parameter names are case-insensitive.

Module Parameters


typedefaultmaxmandatoryobsolete legacy directive
integer1200 no$MarkMessagePeriod

Specifies the mark message injection interval in seconds.

See also

The Action Parameter action.writeAllMarkMessages in Actions.

See also

Help with configuring/using Rsyslog:

  • Mailing list - best route for general questions
  • GitHub: rsyslog source project - detailed questions, reporting issues that are believed to be bugs with Rsyslog
  • Stack Exchange (View, Ask) - experimental support from rsyslog community

See also

Contributing to Rsyslog:

Copyright 2008-2020 Rainer Gerhards (Großrinderfeld), and Others.

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