[Pkg-nagios-devel] Bug#670373: Bug#670373: Bug#670373: nsca 2.7.2 / nsca-client 2.9.1: do not communicate

[Michael Friedrich]

-------- Original Message  --------
Subject: [Pkg-nagios-devel] Bug#670373: Bug#670373: nsca 2.7.2 / 
nsca-client 2.9.1: do not communicate
From: Alexander Wirt <formorer at formorer.de>
To: Gerardo Esteban Malazdrewicz <gerardo at malazdrewicz.com.ar>, 
670373 at bugs.debian.org
Date: 2012-04-25 08:03
> tag #670373 upstream
> thanks
> Gerardo Esteban Malazdrewicz schrieb am Tuesday, den 24. April 2012:
>
>> Package: nsca
>> Version: nsca 2.7.2 does not recognize packages from nsca-client 2.9.1
>> Severity: normal
>>
>> Dear Maintainer,
>>
>> Using encryption/decryption method 16 (RIJNDAEL-256), same /etc/send_nsca.cfg file.
>>
>> nsca from squeeze / nsca-client from testing:
>>
>> Apr 24 19:50:35 monitor nsca[16135]: Connection from XX.XX.XX.XX port 10630
>> Apr 24 19:50:35 monitor nsca[16135]: Handling the connection...
>> Apr 24 19:50:36 monitor nsca[16135]: Dropping packet with invalid CRC32 - possibly due to client using wrong password or crypto algorithm?
>>
>> nsca from squeeze / nsca-client from squeeze:
>>
>> Apr 24 19:55:10 monitor nsca[16891]: Connection from XX.XX.XX.XX port 19846
>> Apr 24 19:55:10 monitor nsca[16891]: Handling the connection...
>> Apr 24 19:55:11 monitor nsca[16891]: SERVICE CHECK ->  Host Name: 'servername', Service Description: 'Disk usage in percent', Return Code: '0', Output: 'OKs: /run is 0.00, /run/shm is 0.00, /dev is 0.00, / is 15.26, / is 15.26, /run/lock is 0.00, /tmp is 0.00.'
>> Apr 24 19:55:11 monitor nsca[16891]: SERVICE CHECK ->  Host Name: 'servername', Service Description: '5 min Load average', Return Code: '0', Output: 'OKs: load is 0.12.'
>> Apr 24 19:55:11 monitor nsca[16891]: End of connection...
> upstream broke that. (even if they said they fixed it).

it could be that it works vice versa - putting a 2.9 server with 2.7 
clients. but from what i've heard, that does not work either.

there seem to be more bugs in 2.9 itsself as well - see here 
http://www.nagios-portal.org/wbb/index.php?page=Thread&threadID=25672

problem is still the static packet size. they changed 512 -> 4096 bytes, 
which broke everything. then they put up a patch which should have added 
backwards compatibility for old_clients (like nsclient++ as well) and 
new_server
http://nagios.svn.sourceforge.net/viewvc/nagios?view=revision&revision=1875

more or less, a different approach on the packet size - like the 
multipacket patch from opsview for nrpe - could work better in this 
regard. see here for some todos - https://dev.icinga.org/issues/2467


>
> Alex
>
>
>
>
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-- 
DI (FH) Michael Friedrich

Vienna University Computer Center
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