check_upd

Justin T Pryzby justinp at norchemlab.com
Wed May 15 18:45:40 CEST 2013


On Tue, May 14, 2013 at 02:48:10PM +0000, María Mercedes Pozzo wrote:
> I'm using de check_udp plugin and couldn't make it work. Don't know how to get the values for the -s and -e option: [-s <send string>] & [-e <expect string>]
> 
> Checked a lot of possibilities and any of them were the correct one. Can you tell me how to get them?
> 
> sh-4.1# /usr/lib64/nagios/plugins/check_udp -v -H 172.22.1.151 -p 5405 -s "0x2" -e "0x6"

It says "service timed out" which seems to mean it's either
firewalled, or otherwise didn't respond (bad input, etc).  Are you
able to interact with that service from the nagios machine in some
other way?

I believe the -s and -e strings are normal "strings", not hex-encoded.

You might use -s "`printf "\x02"`" -e "`printf "\x06"`" (that may need
to be double escaped depending on context).

Justin

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