How to make the Nagios go to begin but same config ?

Jim Avery jim at
Fri Feb 4 14:52:45 CET 2011

On 31 January 2011 13:34, Korrawit Yindeeyoungyeon <skaaa.at0m at> wrote:
> I want to re-monitor the Nagios but I want to delete all log or
> something that can made my Nagios to begin.
> I also have pnp4nagios. It need to delete some ??
> How should I do ??
> Thank you,
> Korrawit Yindeeyoungyeon

Obviously before you start deleting anything, take a backup!

If you want to delete all the history from Nagios, I guess you should
delete the files under /usr/local/nagios/var/archives/ and
/usr/local/nagios/var/nagios.log.  You might also want to delete
/usr/local/nagios/var/objects.cache and retention.dat too.

If you want to restore the Nagios configuration to what you get when
you install from scratch, I would extract the nagios tarball then use
the files from the directory nagios-3.2.3/sample-config/ to set up a
minimum system.

To delete all the graphs created by pnp4nagios, remove all the files
and directories under /usr/local/pnp4nagios/var/perfdata/  (or if you
have an older version of pnp, you will maybe find these under

Some of these actions could break your nagios system if you are not
sure what the files do or how to re-create them.  If you are not
experienced with Nagios, it might be best to build a new system rather
than break an existing one.

Good luck,


The modern datacenter depends on network connectivity to access resources
and provide services. The best practices for maximizing a physical server's
connectivity to a physical network are well understood - see how these
rules translate into the virtual world?
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