Wednesday, August 7, 2013

nsca and send_nsca version incompatibility

I have a Nagios NSCA server running on Debian squeeze. The installed nsca package is the 2.7.2

I want to send passive nagios checks from a SmartOS zone. But the pkgsrc version of nsca client package is 2.9.1

There are incompatibility issues between the 2.7 server 2.7 and a 2.9 client (example

Dropping packet with invalid CRC32 - possibly due to client using wrong password or crypto algorithm?

To resolve the problem without upgrading Debian to a newer release, you can use backports.
Following the instructions I've added a new source to apt

vi /etc/apt/sources.list.d/backports.list

deb squeeze-backports main

apt-get update

And I've installed the newer version of NSCA server.

apt-get -t squeeze-backports install nsca

Now the latest version of send_nsca available on SmartOS works.

Quick testing shows that the 2.7.2 clients seems to work with the 2.9.1 server.

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