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+title: Update to Monitoring Plugins
+parent: FAQ
+---
+
+# How do I update to Monitoring Plugins?
+
+If you installed the [Nagios Plugins][nagios-plugins] package in the past and
+now plan to update to a Monitoring Plugins release, you should check whether
+your operating system vendor provides an official package.  If no such package
+exists, you might have to [install the Monitoring Plugins from
+source][compiling].
+
+You must then make sure the new plugins are found by your monitoring
+application.  While the Nagios Plugins were usually installed into the
+directory `/usr/local/nagios/libexec` when built from the source tarball, the
+Monitoring Plugins are by default installed to `/usr/local/libexec`.  You can
+change this by specifying the `--prefix` option when calling the `./configure`
+script.  For example, the following commands would install the Monitoring
+Plugins into the old location:
+
+    $ ./configure --prefix=/usr/local/nagios
+    $ make
+    $ su root -c 'make install'
+
+If you prefer the new location (`/usr/local/libexec`), you must adjust your
+monitoring application's configuration instead.  The details obviously depend
+on the software you're using.  If in doubt, you will probably find the right
+place(s) to modify by searching your configuration for the old pathname, e.g.:
+
+    $ grep -r /usr/local/nagios /etc
+
+If you run into any trouble, please don't hesitate to [contact us][support]!
+
+[nagios-plugins]: http://www.nagios-plugins.org/ "Nagios Plugins"
+[compiling]: doc/faq/compilation.html "Compiling the Monitoring Plugins"
+[icinga-1]: https://www.icinga.org/icinga-1/ "Icinga 1"
+[icinga-2]: https://www.icinga.org/icinga2/ "Icinga 2"
+[naemon]: http://naemon.github.io/ "Naemon"
+[nagios]: http://www.nagios.org/ "Nagios"
+[support]: support.html "Monitoring Plugins Support"
+
+<!--% # vim:set filetype=markdown textwidth=78 joinspaces expandtab: # %-->