check_log not defined

[sfred]

Sorry for the newb inquiry. I am new to nagios and trying to set up a basic log monitor script. It appears that the check_log plugin is installed on my systems. This config should be relatively simple; however, I am running into a wall when I try to run the command from my server using nrpe:

/usr/local/nagios/libexec/check_nrpe -H 1.2.3.4 -c /usr/local/nagios/libexec/check_log -a /data01/home/s604367/apache-tomcat*/logs/catalina.out
NRPE: Command '/usr/local/nagios/libexec/check_log' not defined

The check_nrpe function is working since I am able to check other functionality.

The command is defined in checkcommands.cfg
define command {
command_name check_log
command_line /usr/local/nagios/libexec/check_log $ARG1$
}

The command runs flawlessly locally on the client:
/usr/local/nagios/libexec/check_log -F /data01/home/s604367/apache-tomcat*/logs/catalina.out -O /tmp/foo.log -q "exception|severe|corba.timeout"
Log check ok - 0 pattern matches found

I have checked permisioning and even added user nagios to sudoers. Nothing seems to get this dumb plugin working. I am about ready to configure the check_logfiles plugin instead. I just don't understand why the basic check_log is not working for me.

Any guidance would be appreciated.

[hsmith]

Can you post your nrpe.cfg from the host you're trying to do this check on?

[sfred]

Code: Select all

#############################################################################
# NRPE Config File for Opsview - DO NOT AMEND THIS FILE!
#
# NOTES:
# This is the configuration file for the NRPE daemon.  It needs to be
# located on the remote host that is running the NRPE daemon, not the host
# from which the check_nrpe client is being executed.
#############################################################################
#
# DO NOT AMEND THIS FILE
#
# This file will be overwritten on an upgrade.  Changes should be made in
#     /usr/local/nagios/etc/nrpe_local/override.cfg
# which will not be changed on an upgrade.
#
#############################################################################


# LOG FACILITY
# The syslog facility that should be used for logging purposes.

log_facility=daemon



# PID FILE
# The name of the file in which the NRPE daemon should write it's process ID
# number.  The file is only written if the NRPE daemon is started by the root
# user and is running in standalone mode.

pid_file=/var/tmp/nrpe.pid



# PORT NUMBER
# Port number we should wait for connections on.
# NOTE: This must be a non-priviledged port (i.e. > 1024).
# NOTE: This option is ignored if NRPE is running under either inetd or xinetd

server_port=5666



# SERVER ADDRESS
# Address that nrpe should bind to in case there are more than one interface
# and you do not want nrpe to bind on all interfaces.
# NOTE: This option is ignored if NRPE is running under either inetd or xinetd

#server_address=127.0.0.1



# NRPE USER
# This determines the effective user that the NRPE daemon should run as.
# You can either supply a username or a UID.
#
# NOTE: This option is ignored if NRPE is running under either inetd or xinetd

nrpe_user=nagios



# NRPE GROUP
# This determines the effective group that the NRPE daemon should run as.
# You can either supply a group name or a GID.
#
# NOTE: This option is ignored if NRPE is running under either inetd or xinetd

nrpe_group=nagios



# ALLOWED HOST ADDRESSES
# This is an optional comma-delimited list of IP address or hostnames
# that are allowed to talk to the NRPE daemon.
#
# Note: The daemon only does rudimentary checking of the client's IP
# address.  I would highly recommend adding entries in your /etc/hosts.allow
# file to allow only the specified host to connect to the port
# you are running this daemon on.
#
# NOTE: This option is ignored if NRPE is running under either inetd or xinetd

#allowed_hosts=127.0.0.1



# COMMAND ARGUMENT PROCESSING
# This option determines whether or not the NRPE daemon will allow clients
# to specify arguments to commands that are executed.  This option only works
# if the daemon was configured with the --enable-command-args configure script
# option.
#
# *** ENABLING THIS OPTION IS A SECURITY RISK! ***
# Read the SECURITY file for information on some of the security implications
# of enabling this variable.
#
# Values: 0=do not allow arguments, 1=allow command arguments

dont_blame_nrpe=1



# COMMAND PREFIX
# This option allows you to prefix all commands with a user-defined string.
# A space is automatically added between the specified prefix string and the
# command line from the command definition.
#
# *** THIS EXAMPLE MAY POSE A POTENTIAL SECURITY RISK, SO USE WITH CAUTION! ***
# Usage scenario:
# Execute restricted commmands using sudo.  For this to work, you need to add
# the nagios user to your /etc/sudoers.  An example entry for alllowing
# execution of the plugins from might be:
#
# nagios          ALL=(ALL) NOPASSWD: /usr/lib/nagios/plugins/
#
# This lets the nagios user run all commands in that directory (and only them)
# without asking for a password.  If you do this, make sure you don't give
# random users write access to that directory or its contents!

# command_prefix=/usr/bin/sudo



# DEBUGGING OPTION
# This option determines whether or not debugging messages are logged to the
# syslog facility.
# Values: 0=debugging off, 1=debugging on

debug=0



# COMMAND TIMEOUT
# This specifies the maximum number of seconds that the NRPE daemon will
# allow plugins to finish executing before killing them off.

command_timeout=60



# CONNECTION TIMEOUT
# This specifies the maximum number of seconds that the NRPE daemon will
# wait for a connection to be established before exiting. This is sometimes
# seen where a network problem stops the SSL being established even though
# all network sessions are connected. This causes the nrpe daemons to
# accumulate, eating system resources. Do not set this too low.

#connection_timeout=300



# WEEK RANDOM SEED OPTION
# This directive allows you to use SSL even if your system does not have
# a /dev/random or /dev/urandom (on purpose or because the necessary patches
# were not applied). The random number generator will be seeded from a file
# which is either a file pointed to by the environment valiable $RANDFILE
# or $HOME/.rnd. If neither exists, the pseudo random number generator will
# be initialized and a warning will be issued.
# Values: 0=only seed from /dev/[u]random, 1=also seed from weak randomness

#allow_weak_random_seed=1



# INCLUDE CONFIG FILE
# This directive allows you to include definitions from an external config file.

#include=<somefile.cfg>



# INCLUDE CONFIG DIRECTORY
# This directive allows you to include definitions from config files (with a
# .cfg extension) in one or more directories (with recursion).

#include_dir=<somedirectory>
#include_dir=<someotherdirectory>



# COMMAND DEFINITIONS
# Command definitions that this daemon will run.  Definitions
# are in the following format:
#
# command[<command_name>]=<command_line>
#
# When the daemon receives a request to return the results of <command_name>
# it will execute the command specified by the <command_line> argument.
#
# Unlike Nagios, the command line cannot contain macros - it must be
# typed exactly as it should be executed.
#
# Note: Any plugins that are used in the command lines must reside
# on the machine that this daemon is running on!  The examples below
# assume that you have plugins installed in a /usr/local/nagios/libexec
# directory.  Also note that you will have to modify the definitions below
# to match the argument format the plugins expect.  Remember, these are
# examples only!

# All entries should be in the following form

command[check_users]=/usr/local/nagios/libexec/check_users $ARG1$
command[check_load]=/usr/local/nagios/libexec/check_load $ARG1$
command[check_disk]=/usr/local/nagios/libexec/check_disk $ARG1$
command[check_swap]=/usr/local/nagios/libexec/check_swap $ARG1$
command[check_procs]=/usr/local/nagios/libexec/check_procs $ARG1$
command[check_memory]=/usr/local/nagios/libexec/check_memory $ARG1$
command[check_file_age]=/usr/local/nagios/libexec/check_file_age $ARG1$
command[check_dir_age]=/usr/local/nagios/libexec/check_dir_age $ARG1$
command[check_mailq]=/usr/local/nagios/libexec/check_mailq $ARG1$
command[check_hpjd]=/usr/local/nagios/libexec/check_hpjd $ARG1$
command[check_ntp]=/usr/local/nagios/libexec/check_ntp $ARG1$
command[check_ntp_peer]=/usr/local/nagios/libexec/check_ntp_peer $ARG1$
command[check_ntp_time]=/usr/local/nagios/libexec/check_ntp_time $ARG1$
command[check_snmp]=/usr/local/nagios/libexec/check_snmp $ARG1$
command[check_time]=/usr/local/nagios/libexec/check_time $ARG1$
command[check_tcp]=/usr/local/nagios/libexec/check_tcp $ARG1$
command[check_cluster]=/usr/local/nagios/libexec/check_cluster $ARG1$
command[check_ide_smart]=/usr/local/nagios/libexec/check_ide_smart $ARG1$
command[check_postgres]=/usr/local/nagios/libexec/check_postgres $ARG1$
command[check_time_skew]=/usr/local/nagios/libexec/check_time_skew $ARG1$
command[check_ro_mounts]=/usr/local/nagios/libexec/check_ro_mounts $ARG1$
command[check_raid]=/usr/local/nagios/libexec/check_raid $ARG1$
command[check_smart]=/usr/local/nagios/libexec/check_smart -d $ARG1$
command[check_cpu_stats]=/usr/local/nagios/libexec/check_cpu_stats $ARG1$
command[check_docker]=/usr/local/nagios/libexec/check_docker $ARG1$
command[check_log]=/usr/local/nagios/libexec/check_log $ARG1$

# Use either ADH ciphers or certificates.
ciphers=ADH-AES256-SHA:ADH-AES128-SHA
#cacert_file=
#cert_file=
#privatekey_file=

# NOTE: additional command definitions should be put into a file such as
#       /usr/local/nagios/etc/nrpe_local/override.cfg
include_dir=/usr/local/nagios/etc/nrpe_local

[tmcdonald]

# NRPE Config File for Opsview - DO NOT AMEND THIS FILE!

We do not provide support for Opsview - you will need to post on their forums for assistance.