Upgrade from 1.3 version to 3+

[Jim Avery]

2009/5/14 James Pratt <jpratt at norwich.edu>:
> First, I'd rebuild a new linux server to run it on and get the latest
> version running, even if it's only checking localhost and emailing me.
>
> Examine very closely *all* old config files, figure out your old
> installation and what checks will replace (if necessary) the older ones
> from nagios-plugins standard programs, or if you  may need custom
> plugins from nagiosexchange.org
>
> Slowly rebuild the old configuration into the new, testing (and
> improving/learning) as you go.
>
> (that's just me though). ;)


Me too :-)  I took that approach moving from 2.7 to 3.0.  It took a
while with 1700 or so hosts, but I feel the effort was worth it as
I've been able to take advantage of most of the new features in Nagios
3 and tidy up my config in the process.  I also took the opportunity
to move to Ubuntu LTS so hopefully I won't need to do a Linux upgrade
for a while.

I recommend maybe getting hold of one of the recent published books on
Nagios 3.  "Nagios 3 Enterprise Network Monitoring" published by
Syngress has a comprehensive section on what's new in Nagios 3 which I
found invaluable.  Otherwise I always highly recommend "Nagios" by
Wolfgang Barth 2nd Ed. published by NoStarch Press.

Cheers,

Jim

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