Nagios Support Forum

I have a configuration for sending passive check results from a solaris box to centos based nagios xi system.
I followed all the docs I could get on hand to make it work. Interesting part is that send_nsca from solaris thinks that it has sent a datapacket successfully.
But I do not see anything on the Nagios XI server saying it received it.

This works fine when I send from local machine.

here are the example
/opt/csw/nagios/bin/send_nsca 10.2.2.100 -d , -c /etc/opt/csw/nagios/send_nsca.cfg < test2
1 data packet(s) sent to host successfully.

here are the configs
nsca.cfg
password set
encryption_method=2

xinetd.d/nsca

# description: NSCA (Nagios Service Check Acceptor)
service nsca
{
flags = REUSE
socket_type = stream
wait = no
user = nagios
group = nagios
server = /usr/local/nagios/bin/nsca
server_args = -c /usr/local/nagios/etc/nsca.cfg --inetd
log_on_failure += USERID
disable = no
only_from = 10.1.30.130


here are the iptable info
Chain INPUT (policy ACCEPT)
target prot opt source destination
ACCEPT tcp -- anywhere anywhere state NEW tcp dpt:nsca
ACCEPT tcp -- anywhere anywhere state NEW tcp dpt:nrpe

Chain FORWARD (policy ACCEPT)
target prot opt source destination

Chain OUTPUT (policy ACCEPT)
target prot opt source destinat

Do you see anything in Unconfigured Objects? Is "Enable Listener For Unconfigured Objects" check-box selected under Admin->Performance Settings->Subsystem? Did you look for clues in /var/log/messages?

I see this message in the messages file. I made it with no encryption and setup simple password.
Oct 31 21:12:55 localhost nsca[4705]: Dropping packet with invalid CRC32 - possibly due to client using wrong password or crypto algorithm?

The only thing is I am seeing is when i use the same setup from local it works, This does not work when i send from solaris. Is there a difference in crypto algorithms across OS ?

What version of NSCA did you install on the solaris system? And what version of Nagios XI are you using?

We are on Nagios XI Version : 2012R2.5
send_nsca on solaris change log says
NSCA Changelog
**************

2.9.1 - 01/27/2012

How can I know the nsca daemon version?

sujitt,

What Decryption are you using on the XI side?

Admin > Inbound Transfers > NSCA >Decyption Method.

What encryption are you using on Solaris?

-Yancy

You can just run from the command line:
You should be able to see the version. Can you run the following command and show us the output?
I would set the value to "0" (zero), so that no packages would be rejected based on their age, and restart the xinetd:

is the 2.9.1 nsca client backward compatible with nsca 2.7.2 ?

You cannot run a newer version of nsca as the sender (remote host). We would suggest using 2.7.2 on the remote hosts.

are there instructions to upgrade the nsca version on Nagios XI to 2.9.1 ? or it is still not stable ?