I am having a problem getting NRPE and checks to work with Nagios
Nagios Version 2.5
Nagios Plugins 1.4.3
NRPE 2.5.2
I realise I have missed something, but having looked at this now for
almost 2 hours and having ran through the faq and mailing lists I have
resorted to posting to the mailing list.
I believe NRPE is configured correctly and that my commands are working
fine as attested to below. However, when Nagios executes the NRPE checks
it fails the test and causes the following error to be displayed.
"(Return code of 126 is out of bounds - plugin may be missing) "
I know the files exist and that Nagios can see them
Nagios Monitoring host: usel
[EMAIL PROTECTED]:~> ll /usr/local/nagios/libexec/check_nrpe
-rwxr-xr-x 1 Nagios nagios 56426 2006-09-07 15:48
/usr/local/nagios/libexec/check_nrpe
Nagios Monitored host h4oiap
[EMAIL PROTECTED]:/> ll /usr/local/nagios/libexec/check_disk
-rwxr-xr-x 1 root root 104473 2006-09-10 22:32
/usr/local/nagios/libexec/check_disk
[EMAIL PROTECTED]:/> ll /usr/local/sbin/nrpe
-rwxr-xr-x 1 nagios nagios 113380 2006-09-07 14:58 /usr/local/sbin/nrpe
I have external command checking configured in my nagios.cfg file and
Nagios is working fine doing the ping tests to remote machines. It also
behaves correctly allowing me to handle comments, re-schedule tests, add
scheduled down time so I know the permissions on the nagios.cmd file are
ok
[EMAIL PROTECTED]:~> ll /usr/local/nagios/var/rw/nagios.cmd
prw-rw---- 1 nagios nagcmd 0 2006-09-11 01:25
/usr/local/nagios/var/rw/nagios.cmd
I'm hoping someone will spot my mistake and says its nice and easy to
fix :)
But I am willing to take hard answers as well
############################ START OFF CONFIGS
############################
>From checkcommand.cfg
define command{
command_name check_nrpe
command_line $USER1$ /check_nrpe -H $HOSTADDRESS$ -c $ARG1$
}
>From services.cfg
# check number off users logged in
define service{
use generic-service
host_name h4oiap
service_description Logged In Users
is_volatile 0
check_period 24x7
max_check_attempts 3
normal_check_interval 5
retry_check_interval 1
contact_groups vsu-p
notification_interval 120
notification_period 24x7
notification_options w,c,r
check_command check_nrpe!check_users
}
# Free Space on /
define service{
use generic-service
host_name h4oiap
service_description Free Disk Space /
is_volatile 0
check_period 24x7
max_check_attempts 3
normal_check_interval 5
retry_check_interval 1
contact_groups vsu-p
notification_interval 120
notification_period 24x7
notification_options w,c,r
check_command check_nrpe!check_disk1
>From nrpe.cfg on monitored host h4oiap
pid_file=/var/run/nrpe.pid
server_port=5666
nrpe_user=nagios
nrpe_group=nagios
dont_blame_nrpe=0
debug=1
command_timeout=60
# The following examples use hard coded command arguments...
command[check_users]=/usr/local/nagios/libexec/check_users -w 5 -c 10
command[check_disk1]=/usr/local/nagios/libexec/check_disk -e -l -X
iso9660 -X proc -x sysv -X tempfs -w 20% -c 10% -p /
############################ END OFF CONFIGS
############################
######## START OFF Commands executed on h4oiap monitored host
############
Running above commands locally on monitored host h4oiap produces the
following
CHECK DISK
[EMAIL PROTECTED]:/usr/local/nagios/libexec>
/usr/local/nagios/libexec/check_disk -l -X iso9660 -X proc -x sysv -X
tempfs -w 20% -c 10% -p /
DISK OK - free space: / 3041 MB (27% inode=nan%);|
/=8222MB;9010;10136;-9223372036854775808;11263
CHECK USER
[EMAIL PROTECTED]:/usr/local/nagios/libexec>
/usr/local/nagios/libexec/check_users -w 5 -c 10
USERS OK - 1 users currently logged in |users=1;5;10;0
############ END OFF Commands executed on h4oiap monitored host
##############
###### START OFF Commands executed on USEL, The NAGIOS MONITORING host
######
Running the above commands via check_nrpe from the MONITORING host usel
produces the following
[EMAIL PROTECTED]:~> /usr/local/nagios/libexec/check_nrpe -H 132.146.185.13 -p
5666 -c check_disk1
DISK OK - free space:| /=8222MB;9010;10136;-9223372036854775808;11263
Debug syslog output from h4oiap
Sep 11 00:57:51 h4oiap nrpe[6620]: Added
command[check_users]=/usr/local/nagios/libexec/check_users -w 5 -c 10
Sep 11 00:57:51 h4oiap nrpe[6620]: Added
command[check_disk1]=/usr/local/nagios/libexec/check_disk -e -l -X
iso9660 -X proc -x sysv -X tempfs -w 20% -c 10% -p /
Sep 11 00:57:51 h4oiap nrpe[6620]: INFO: SSL/TLS initialized. All
network traffic will be encrypted.
Sep 11 00:57:51 h4oiap nrpe[6620]: Handling the connection...
Sep 11 00:57:51 h4oiap nrpe[6620]: Host is asking for command
'check_disk1' to be run...
Sep 11 00:57:51 h4oiap nrpe[6620]: Running command:
/usr/local/nagios/libexec/check_disk -e -l -X iso9660 -X proc -x sysv -X
tempfs -w 20% -c 10% -p /
Sep 11 00:57:51 h4oiap nrpe[6620]: Command completed with return code 0
and output: DISK OK - free space:|
/=8222MB;9010;10136;-9223372036854775808;11263
Sep 11 00:57:51 h4oiap nrpe[6620]: Return Code: 0, Output: DISK OK -
free space:| /=8222MB;9010;10136;-9223372036854775808;11263
[EMAIL PROTECTED]:~> /usr/local/nagios/libexec/check_nrpe -H 132.146.185.13 -p
5666 -c check_users
USERS OK - 1 users currently logged in |users=1;5;10;0
debug syslog output from h4oiap
Sep 11 00:59:25 h4oiap nrpe[6661]: Added
command[check_users]=/usr/local/nagios/libexec/check_users -w 5 -c 10
Sep 11 00:59:25 h4oiap nrpe[6661]: Added
command[check_disk1]=/usr/local/nagios/libexec/check_disk -e -l -X
iso9660 -X proc -x sysv -X tempfs -w 20% -c 10% -p /
Sep 11 00:59:25 h4oiap nrpe[6661]: INFO: SSL/TLS initialized. All
network traffic will be encrypted.
Sep 11 00:59:25 h4oiap nrpe[6661]: Handling the connection...
Sep 11 00:59:25 h4oiap nrpe[6661]: Host is asking for command
'check_users' to be run...
Sep 11 00:59:25 h4oiap nrpe[6661]: Running command:
/usr/local/nagios/libexec/check_users -w 5 -c 10
Sep 11 00:59:25 h4oiap nrpe[6661]: Command completed with return code 0
and output: USERS OK - 1 users currently logged in |users=1;5;10;0
Sep 11 00:59:25 h4oiap nrpe[6661]: Return Code: 0, Output: USERS OK - 1
users currently logged in |users=1;5;10;0
####### END OFF Commands executed on USEL, The NAGIOS MONITORING host
#######
################ OUTPUT from /usr/local/nagios/var/nagios.log
################
[1157934304] EXTERNAL COMMAND: SCHEDULE_FORCED_SVC_CHECK;h4oiap;Free
Disk Space /;1157934301
[1157934312] Warning: Return code of 126 for check of service 'Free Disk
Space / ' on host 'h4oiap'
was out of bounds. Make sure the plugin you're trying to run
actually exists.
[1157934492] Warning: Return code of 126 for check of service 'Logged In
Users' on host 'h4oiap' was
out of bounds. Make sure the plugin you're trying to run ac
tually exists.
[1157934612] Warning: Return code of 126 for check of service 'Free Disk
Space / ' on host 'h4oiap'
was out of bounds. Make sure the plugin you're trying to run
actually exists.
################ OUTPUT from /usr/local/nagios/var/nagios.log
################
Thanks in advance for your help
Tom Welsh
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