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.TH "MUNIN" "7" "February 10, 2022" "2.1" "Munin"
.SH NAME
munin \- Overview of munin components
.SH DESCRIPTION
.sp
Munin is a group of programs to gather data from hosts, graph them,
create html\-pages, and optionally warn contacts about any off\-limit
values.
.SH MUNIN MASTER
.sp
The Munin master contains the following command line programs:
.INDENT 0.0
.IP \(bu 2
munin\-cron to run other munin programs every 5 minutes. It is run from cron.
.IP \(bu 2
munin\-update to gather data from machines running munin\-node. Usually run by
munin\-cron\&.
.IP \(bu 2
munin\-limits to check for any off\-limit values. Usually run by munin\-cron\&.
.IP \(bu 2
munin\-httpd runs the munin master web interface.
.UNINDENT
.sp
Munin 2.0 contains the following additional command line programs:
.INDENT 0.0
.IP \(bu 2
munin\-graph to create graphs from data contained in rrd\-files. Usually run by
munin\-cron unless \fBgraph_strategy\fP is set to “cgi” in munin.conf\&.
.IP \(bu 2
munin\-cgi\-graph is used to provide graph images on demand (if \fBgraph_strategy\fP is set to “cgi”).
.IP \(bu 2
munin\-html to draw html\-pages on an Munin installation. Usually run by munin\-cron
unless \fBhtml_strategy\fP is set to “cgi” in munin.conf\&.
.IP \(bu 2
munin\-cgi\-html is used to provide HTML pages on demand (if \fBgraph_strategy\fP is set to “cgi”).
.UNINDENT
.SH MUNIN NODE
.sp
The munin node consists of the following programs
.SS Daemons
.INDENT 0.0
.IP \(bu 2
munin\-node runs on all nodes where data is collected.
.IP \(bu 2
munin\-asyncd is a daemon that runs alongside a munin\-node. It queries the local
munin\-node, and spools the results.
.UNINDENT
.SS Command line scripts
.INDENT 0.0
.IP \(bu 2
munin\-node\-configure can automatically configure plugins for the local node.
.IP \(bu 2
munindoc outputs plugin documentation.
.IP \(bu 2
munin\-run runs a plugin with the same environment as if run from munin\-node\&. Very
useful for debugging.
.IP \(bu 2
munin\-async is a command line utility, known as an “asynchronous proxy node”.
munin\-update can connect via ssh and run munin\-async this to retrieve data from the
munin async spool without waiting for the node to run plugins.
.UNINDENT
.SH AUTHORS
.sp
Jimmy Olsen, Audun Ytterdal, Brian de Wolf, Nicolai Langfeldt
.SH SEE ALSO
.sp
munin\-update, munin\-limits, munin.conf,
.SH AUTHOR
The Munin project and its contributors
.SH COPYRIGHT
2012-2022, The Munin project and its contributors
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