Nagios process located wrong in status map

[Patrick Stockton]

After a little digging we figured out what some of our false positives were comming from.  In the
frame relay QOS setup a PING is delegated to the lowest priority possible.  Hence when traffic is at
it's highest (middle of the day) ping packets were being dropped and false positives were being
generated.

So as a different test we have changed to check_tcp on port 80 for devices with web interfaces and
port 3389 for windows servers with terminal services enabled.

The false positives have dissapeared but they still remain a valid check.

Patrick

Robert Nelson wrote:

>>But this brings me to a second question and it has to do with 
>>how Nagios does a host or service 
>>check.  I have some hosts in San Antonio which I am checking 
>>as well.  A ping from Bronson has to 
>>travel to Oxford first and then travel to San Antonio all via 
>>frame relay.  By re-aligning the 
>>parents will nagios allow for more time from a return from 
>>say a host in San Antonio than say my 
>>site server which is sitting right next to the nagios box 
>>also a child of the bronson router?
> 
> 
> No, it does no such thing. Nagios has no idea what your links are unless
> you tell it. There's a check_ping command that takes two arguments for
> its Warning and Critical thresholds. Adjust as needed. To keep things
> simple, I'd check everything on that side of the link with a custom
> "check_ping_oxford" that sets those variables for you - if you find
> they're too low, you'll only have to change them once.
> 
> 
>>I'm still trying to get a feel for how I should be scheduling 
>>checks so that we aren't flooded with 
>>e-mails and text messages simply because frame traffic was high.
> 
> 
> Use the check_interval and retry_interval to adjust upwards until your
> false-positives go away.
> 
> Rob Nelson
> Network Engineer
> Windchannel Communications
> 919-538-6326
> 
> 
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