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Fri, 30 Dec 2011

/Admin/Monitoring/munin: Turn on the Apache Munin Plugins

You need to enable extended status on Apache. Assuming the status module is enabled, create another file /etc/apache2/conf.d/extendedStatus containing the following:

(Note that /etc/apache2/mods-enabled/status.conf contains some of the above, but may not be enough.)

Restart Apache, and now on the server itself, if you use a terminal-based web browser like w3m, for instance, this

w3m localhost/server-status

should show you Apache's status page. And now these plugins should work:

apache_accesses -> /usr/share/munin/plugins/apache_accesses
apache_processes -> /usr/share/munin/plugins/apache_processes
apache_volume -> /usr/share/munin/plugins/apache_volume

And finally, if due to some insoluble weirdness in your Apache configuration you cannot get it working, I have found (thanks to [1]) that putting the status stuff on another port can work, ie. /etc/apache2/mods-enabled/status.conf:

Then in the tree /usr/share/munin/plugins/apache_* files, replace

my @PORTS = exists $ENV{'ports'} ? split(' ', $ENV{'ports'}) : (80);

with

my @PORTS = (8001);

And hopefully you are good to go.

[1] http://serverfault.com/questions/200320/apache-server-status-403-at-non-standard-port

posted at: 03:04 | path: /Admin/Monitoring/munin | permanent link to this entry

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Fri, 30 Dec 2011