Questions Galore

[Andreas Ericsson]

Dale Blount wrote:
> Hey Guys,
> 
> 
> I'm finally finishing up my Nagios installation and have a few questions
> that I haven't been able to find good answers to.
> 
> 
> 1) I have one host that has a bad mobo/NIC/driver or something that
> times out every so often.  The box is going away soon so I don't really
> care to fix it, however almost every time this box, another certain
> hosts SMTP service goes offline as well.  Could this be caused by
> Nagios' scheduling order (same host always goes down with it) or do I
> just have a genuine network problem?
> 

Without further investigation it's impossible to say for sure, but it 
sounds like a network problem.

> 2) I have a couple contacts with pager address defined, but not all host
> groups they belong to should send pages.  Should I make this person two
> contacts - user-email and user-page?  Add both of them to hosts groups
> where they should get paged or is there a cleaner solution.
> 

It's normal to define two contacts, as the two addresses are distrinctly 
different targets. People tend to associate contacts with people rather 
than notification targets, which messes up the planning.

> 3) Does anyone have a good way to get alerts to AIM addresses?
> Everything I can find is incomplete.
> 

www.nagiosexchange.com (or .org, I can't remember) has some stuff on 
notifications. Otherwise, google is your friend. It should be possible 
to hack something up with that text-based IM-thingie. Can't remember its 
name right now, but it supports MSN, ICQ, AIM and most of the other 
common things.

> 4) Every so often I get hosts which are physically unreachable.
> check_ping however, just times out at the -t X setting instead of
> reporting unreachable.  Any ideas?
> 

This happens because a switch or router on the same network still has 
the MAC-address in its ARP-tables. There's really no solution to this 
the first time the plugin is run. check_icmp does a better job of 
detecting it, but will most likely also time out the first time or two 
it's run, given the low timeout thresholds generally in use with nagios 
plugins compared to the higher ones used in most networks.

> 
> Thanks for all the help,
> 
> Dale
> 
> 
> 
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-- 
Andreas Ericsson                   andreas.ericsson at op5.se
OP5 AB                             www.op5.se
Lead Developer


-------------------------------------------------------
SF.Net email is Sponsored by the Better Software Conference & EXPO
September 19-22, 2005 * San Francisco, CA * Development Lifecycle Practices
Agile & Plan-Driven Development * Managing Projects & Teams * Testing & QA
Security * Process Improvement & Measurement * http://www.sqe.com/bsce5sf
_______________________________________________
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::: Please include Nagios version, plugin version (-v) and OS when reporting any issue. 
::: Messages without supporting info will risk being sent to /dev/null