[HELP] check_mem.pl configuration

[sh.shekhar89]

Hi All,

I have configured check_mem.pl on my test machine, I am getting the following error for both localhost and remote client :

" (Return code 255 is out of bounds)" [ Screenshot attached]

But when i am running from console : i am able to get the data.

Please help me how fix the issue.

[abrist]

1. Can you run the check from the remote host as user "nagios"?
2. Can you post the full check command/service definition?
3. Can you post the NRPE command from the remote host's nrpe config.

[sh.shekhar89]

Hi abrist,

I previous problem is solved, it was due to ssl handshake issue. i have installed openssl.

Now i am getting error " : "NRPE: Unable to read output "

but when i am running the check command from command line manually i am not getting error.

please help me to fix the issue.

1. How i can run the check from the remote host as user "nagios" ? can you explain me??

2. Here is my command defination :

Code: Select all

"###############################################################################
# COMMANDS.CFG - SAMPLE COMMAND DEFINITIONS FOR NAGIOS 4.0.2
#
#
# NOTES: This config file provides you with some example command definitions
#        that you can reference in host, service, and contact definitions.
#       
#        You don't need to keep commands in a separate file from your other
#        object definitions.  This has been done just to make things easier to
#        understand.
#
###############################################################################


################################################################################
#
# SAMPLE NOTIFICATION COMMANDS
#
# These are some example notification commands.  They may or may not work on
# your system without modification.  As an example, some systems will require 
# you to use "/usr/bin/mailx" instead of "/usr/bin/mail" in the commands below.
#
################################################################################


# 'notify-host-by-email' command definition
define command{
	command_name	notify-host-by-email
	command_line	/usr/bin/printf "%b" "***** Nagios *****\n\nNotification Type: $NOTIFICATIONTYPE$\nHost: $HOSTNAME$\nState: $HOSTSTATE$\nAddress: $HOSTADDRESS$\nInfo: $HOSTOUTPUT$\n\nDate/Time: $LONGDATETIME$\n" | /bin/mail -s "** $NOTIFICATIONTYPE$ Host Alert: $HOSTNAME$ is $HOSTSTATE$ **" $CONTACTEMAIL$
	}

# 'notify-service-by-email' command definition
define command{
	command_name	notify-service-by-email
	command_line	/usr/bin/printf "%b" "***** Nagios *****\n\nNotification Type: $NOTIFICATIONTYPE$\n\nService: $SERVICEDESC$\nHost: $HOSTALIAS$\nAddress: $HOSTADDRESS$\nState: $SERVICESTATE$\n\nDate/Time: $LONGDATETIME$\n\nAdditional Info:\n\n$SERVICEOUTPUT$\n" | /bin/mail -s "** $NOTIFICATIONTYPE$ Service Alert: $HOSTALIAS$/$SERVICEDESC$ is $SERVICESTATE$ **" $CONTACTEMAIL$
	}





################################################################################
#
# SAMPLE HOST CHECK COMMANDS
#
################################################################################


# This command checks to see if a host is "alive" by pinging it
# The check must result in a 100% packet loss or 5 second (5000ms) round trip 
# average time to produce a critical error.
# Note: Five ICMP echo packets are sent (determined by the '-p 5' argument)

# 'check-host-alive' command definition
define command{
        command_name    check-host-alive
        command_line    $USER1$/check_ping -H $HOSTADDRESS$ -w 3000.0,80% -c 5000.0,100% -p 5
        }





################################################################################
#
# SAMPLE SERVICE CHECK COMMANDS
#
# These are some example service check commands.  They may or may not work on
# your system, as they must be modified for your plugins.  See the HTML 
# documentation on the plugins for examples of how to configure command definitions.
#
# NOTE:  The following 'check_local_...' functions are designed to monitor
#        various metrics on the host that Nagios is running on (i.e. this one).
################################################################################

# 'check_local_disk' command definition
define command{
        command_name    check_local_disk
        command_line    $USER1$/check_disk -w $ARG1$ -c $ARG2$ -p $ARG3$
        }


# 'check_local_load' command definition
define command{
        command_name    check_local_load
        command_line    $USER1$/check_load -w $ARG1$ -c $ARG2$
        }


# 'check_local_procs' command definition
define command{
        command_name    check_local_procs
        command_line    $USER1$/check_procs -w $ARG1$ -c $ARG2$ -s $ARG3$
        }


# 'check_local_users' command definition
define command{
        command_name    check_local_users
        command_line    $USER1$/check_users -w $ARG1$ -c $ARG2$
        }


# 'check_local_swap' command definition
define command{
	command_name	check_local_swap
	command_line	$USER1$/check_swap -w $ARG1$ -c $ARG2$
	}


# 'check_local_mrtgtraf' command definition
define command{
	command_name	check_local_mrtgtraf
	command_line	$USER1$/check_mrtgtraf -F $ARG1$ -a $ARG2$ -w $ARG3$ -c $ARG4$ -e $ARG5$
	}


################################################################################
# NOTE:  The following 'check_...' commands are used to monitor services on
#        both local and remote hosts.
################################################################################

# 'check_ftp' command definition
define command{
        command_name    check_ftp
        command_line    $USER1$/check_ftp -H $HOSTADDRESS$ $ARG1$
        }


# 'check_hpjd' command definition
define command{
        command_name    check_hpjd
        command_line    $USER1$/check_hpjd -H $HOSTADDRESS$ $ARG1$
        }


# 'check_snmp' command definition
define command{
        command_name    check_snmp
        command_line    $USER1$/check_snmp -H $HOSTADDRESS$ $ARG1$
        }


# 'check_http' command definition
define command{
        command_name    check_http
        command_line    $USER1$/check_http -I $HOSTADDRESS$ $ARG1$
        }


# 'check_ssh' command definition
define command{
	command_name	check_ssh
	command_line	$USER1$/check_ssh $ARG1$ $HOSTADDRESS$
	}


# 'check_dhcp' command definition
define command{
	command_name	check_dhcp
	command_line	$USER1$/check_dhcp $ARG1$
	}


# 'check_ping' command definition
define command{
        command_name    check_ping
        command_line    $USER1$/check_ping -H $HOSTADDRESS$ -w $ARG1$ -c $ARG2$ -p 5
        }


# 'check_pop' command definition
define command{
        command_name    check_pop
        command_line    $USER1$/check_pop -H $HOSTADDRESS$ $ARG1$
        }


# 'check_imap' command definition
define command{
        command_name    check_imap
        command_line    $USER1$/check_imap -H $HOSTADDRESS$ $ARG1$
        }


# 'check_smtp' command definition
define command{
        command_name    check_smtp
        command_line    $USER1$/check_smtp -H $HOSTADDRESS$ $ARG1$
        }


# 'check_tcp' command definition
define command{
	command_name	check_tcp
	command_line	$USER1$/check_tcp -H $HOSTADDRESS$ -p $ARG1$ $ARG2$
	}


# 'check_udp' command definition
define command{
	command_name	check_udp
	command_line	$USER1$/check_udp -H $HOSTADDRESS$ -p $ARG1$ $ARG2$
	}


# 'check_nt' command definition
define command{
	command_name	check_nt
	command_line	$USER1$/check_nt -H $HOSTADDRESS$ -p 12489 -v $ARG1$ $ARG2$
	}

define command{
        command_name  check_nrpe
        command_line  /usr/local/nagios/libexec/check_nrpe -H $HOSTADDRESS$ -c $ARG1$
        }


define command {
command_name                   check_cpu
command_line                      $USER1$/check_nrpe -H $HOSTADDRESS$ -c check_cpu -t 30 -a $ARG1$ $ARG2$
}

################################################################################
#
# SAMPLE PERFORMANCE DATA COMMANDS
#
# These are sample performance data commands that can be used to send performance
# data output to two text files (one for hosts, another for services).  If you
# plan on simply writing performance data out to a file, consider using the 
# host_perfdata_file and service_perfdata_file options in the main config file.
#
################################################################################


# 'process-host-perfdata' command definition
define command{
	command_name	process-host-perfdata
	command_line	/usr/bin/printf "%b" "$LASTHOSTCHECK$\t$HOSTNAME$\t$HOSTSTATE$\t$HOSTATTEMPT$\t$HOSTSTATETYPE$\t$HOSTEXECUTIONTIME$\t$HOSTOUTPUT$\t$HOSTPERFDATA$\n" >> /usr/local/nagios/var/host-perfdata.out
	}


# 'process-service-perfdata' command definition
define command{
	command_name	process-service-perfdata
	command_line	/usr/bin/printf "%b" "$LASTSERVICECHECK$\t$HOSTNAME$\t$SERVICEDESC$\t$SERVICESTATE$\t$SERVICEATTEMPT$\t$SERVICESTATETYPE$\t$SERVICEEXECUTIONTIME$\t$SERVICELATENCY$\t$SERVICEOUTPUT$\t$SERVICEPERFDATA$\n" >> /usr/local/nagios/var/service-perfdata.out
	}

define command{
       command_name    process-service-perfdata-file
       command_line    /usr/local/pnp4nagios/libexec/process_perfdata.pl --bulk=/usr/local/pnp4nagios/var/service-perfdata
}

define command{
       command_name    process-host-perfdata-file
       command_line    /usr/local/pnp4nagios/libexec/process_perfdata.pl --bulk=/usr/local/pnp4nagios/var/host-perfdata
}
"


Here is my Service defination :

 For Localhost ::

"define service{
        use                            local-service
        host_name                      localhost 
        service_description            Check RAM
        check_command                  check_nrpe!check_mem
}

"
For test Server ::
"define service{
        use                            local-service
        host_name                      Test 
        service_description            Check RAM
        check_command                  check_nrpe!check_mem
}
"

I am attaching both nrpe configuration files for nagios server and host.

Please let me what is fixed for this solution :

[slansing]

We were looking for just the relevant service, and it's command definition, is it still the exact same service you are having issues with?

Note: I wrapped your dump in code so it shortened it up a bit.

[sh.shekhar89]

Hi Slansing,


Yes the configuration is same.

i have to make some changes in client nrpe.cfg??

[slansing]

Lets test it against your remote host first, from the core server's ssh session:

Code: Select all

/path/to/check_nrpe -H add.of.your.host -c check_mem -a 10 20

Let us know what the output is, also, your nrpe on the remote host should be logging to the syslog, capture the output from xinetd/nrpe after you run the command and post it here if it is still failing.