NRPE: Unable to read output
Marcus
adesperateuser at googlemail.com
Fri May 16 11:05:48 CEST 2008
Hi Folks,
i'm trying to get a plugin for openvpn
(http://www.nagiosexchange.org/cgi-bin/pages/Detailed/1315.html) to work
with nrpe, but it gives me the dreaded "NRPE: Unable to read output"-error.
The server is a sles10sp1-xen-host running openvpn with the
management-console which is reachable via telnet on localhost:1195.
When i run the check manually, it works, although there is no "Linefeed"
at the end.(Wonder if that might be the problem?)
The invocation-command basically looks like this:
nagios at u-23:/usr/local/nagios/libexec>
/usr/local/nagios/libexec/check_openvpn -H 127.0.0.1 -p 1195 -P mypwd -n
Then the output is (on one line):
OpenVPN OK: 0 connected
clients.nagios at u-239-s087:/usr/local/nagios/libexec>
Perl::Telnet is used to connect to tcp/1195, gives the pwd and checks
how many clients are connected.
My nrpe.cfg looks like this:
command[check_vpn]=/usr/local/nagios/libexec/check_openvpn -H 127.0.0.1
-p 1195 -P mypwd -n
When i issue
nagios at u-23:/usr/local/nagios/libexec>
/usr/local/nagios/libexec/check_nrpe -H 127.0.0.1 -c check_hd
DISK OK - free space: / 9334 MB (86% inode=96%);|
/=1424MB;9067;10200;0;11334
it works great, however
nagios at u-23:/usr/local/nagios/libexec>
/usr/local/nagios/libexec/check_nrpe -H 127.0.0.1 -c check_vpn
results in
NRPE: Unable to read output
Can anybody please give me a hint whats going wrong here. :-/
Thanks and greetings,
Marcus
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