Nagios Support Forum

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[root@XEN1 t]# ls /usr/lib
games    libmetrics.a   libmetrics.so    libmetrics.so.0.0.0  lsb    pm-utils   rpm       tcl8.4  xen
gcc-lib  libmetrics.la  libmetrics.so.0  locale               perl5  python2.4  syslinux  X11     yum-plugins
[root@XEN1 t]#

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[root@nagios etc]# ls /usr/lib
binfmt.d   grub        jvm-commmon  modules            sse2
cpp        java        jvm-exports  modules-load.d     sysctl.d
debug      java-1.5.0  jvm-private  polkit-1           systemd
dracut     java-1.6.0  kbd          python2.7          tmpfiles.d
firewalld  java-1.7.0  kdump        rpm                tuned
firmware   java-1.8.0  kernel       sendmail           udev
games      java-ext    locale       sendmail.postfix   x86_64-redhat-linux6E
gcc        jvm         modprobe.d   sendmail.sendmail  yum-plugins
[root@nagios etc]#

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[root@nagios ~]# ls -l /usr/local/nagios/etc/
total 88
-rw-rw-r-- 1 nagios nagios 12267 Nov 11 15:39 cgi.cfg
-rw-r--r-- 1 root   root     358 Nov 24 15:41 commands.cfg
-rw-r--r-- 1 root   root    1095 Nov 25 11:40 hosts.cfg
-rw-r--r-- 1 root   root      50 Nov 11 15:42 htpasswd.users
-rw-r--r-- 1 root   root     501 Nov 23 15:20 linux-hosts.cfg
-rw-r--r-- 1 root   root     585 Nov 23 16:19 linux-services.cfg
-rw-rw-r-- 1 nagios nagios 44965 Nov 25 11:34 nagios.cfg
drwxrwxr-x 2 nagios nagios  4096 Dec 14 16:06 objects
-rw-rw---- 1 nagios nagios  1312 Nov 11 15:39 resource.cfg
-rw-r--r-- 1 root   root    1526 Nov 30 11:43 services.cfg

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[root@ora_linux7_xen2 ~]# ls -l /usr/local/nagios/etc/
total 16
-rw-r--r--. 1 root   root    357 Nov 24 10:18 commands.cfg
-rw-r--r--. 1 nagios nagios 8195 Nov 25 11:38 nrpe.cfg

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##############################################################################
# NRPE CHECK COMMAND
# Command to use NRPE to check remote host systems
###############################################################################

define command{
        command_name check_nrpe
        command_line $USER1$/check_nrpe -H $HOSTADDRESS$ -c $ARG1$
        }

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#############################################################################
# Sample NRPE Config File
# Written by: Ethan Galstad ([email protected])
#
# Last Modified: 11-23-2007
#
# NOTES:
# This is a sample 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.
#############################################################################


# 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/run/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. Network addresses with a bit mask
# (i.e. 192.168.1.0/24) are also supported. Hostname wildcards are not currently
# supported.
#
# 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=127.0.0.1,172.17.60.1



# 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=0



# BASH COMMAND SUBTITUTION
# This option determines whether or not the NRPE daemon will allow clients
# to specify arguments that contain bash command substitutions of the form
# $(...).  This option only works if the daemon was configured with both
# the --enable-command-args and --enable-bash-command-substitution configure
# script options.
#
# *** ENABLING THIS OPTION IS A HIGH SECURITY RISK! ***
# Read the SECURITY file for information on some of the security implications
# of enabling this variable.
#
# Values: 0=do not allow bash command substitutions,
#         1=allow bash command substitutions

allow_bash_command_substitution=0



# 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!


# The following examples use hardcoded command arguments...

command[check_users]=/usr/local/nagios/libexec/check_users -w 5 -c 10
command[check_load]=/usr/local/nagios/libexec/check_load -w 15,10,5 -c 30,25,20
command[check_hda1]=/usr/local/nagios/libexec/check_disk -w 20% -c 10% -p /dev/hda1
command[check_zombie_procs]=/usr/local/nagios/libexec/check_procs -w 5 -c 10 -s Z
command[check_total_procs]=/usr/local/nagios/libexec/check_procs -w 150 -c 200
command[check_swap]=/usr/local/nagios/libexec/check_swap -w 20% -c 10%

# The following examples allow user-supplied arguments and can
# only be used if the NRPE daemon was compiled with support for
# command arguments *AND* the dont_blame_nrpe directive in this
# config file is set to '1'.  This poses a potential security risk, so
# make sure you read the SECURITY file before doing this.

command[check_users]=/usr/local/nagios/libexec/check_users -w 5 -c 10
command[check_load]=/usr/local/nagios/libexec/check_load -w 15,10,5 -c 30,25,20
command[check_hda1]=/usr/local/nagios/libexec/check_disk -w 20% -c 10% -p /dev/hda1
command[check_procs]=/usr/local/nagios/libexec/check_procs -w 150 -c 200
command[check_zombie_procs]=/usr/local/nagios/libexec/check_procs -w 5 -c 10 -s Z
command[check_swap]=/usr/local/nagios/libexec/check_swap -w 20% -c 10%

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ls -l /usr/local/nagios/etc/objects/

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chown nagios:nagios /usr/local/nagios/etc/*

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[root@nagios ~]# ls /usr/local/nagios/libexec
check_nrpe  eventhandlers

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ls -l /usr/local/nagios/etc/objects/

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[root@nagios ~]# ls -l /usr/local/nagios/etc/objects/
total 60
-rw-r--r-- 1 root   root     338 Nov 23 15:49 command.cfg
-rw-rw-r-- 1 nagios nagios  8046 Nov 25 11:47 commands.cfg
-rw-rw-r-- 1 nagios nagios  2138 Nov 11 15:39 contacts.cfg
-rw-r--r-- 1 root   root       1 Nov 18 13:02 host1.cfg
-rw-rw-r-- 1 nagios nagios  5375 Nov 11 15:39 localhost.cfg
-rw-rw-r-- 1 nagios nagios  3096 Nov 11 15:39 printer.cfg
-rw-r--r-- 1 root   root    2950 Nov 24 15:56 service.cfg
-rw-rw-r-- 1 nagios nagios  3265 Nov 11 15:39 switch.cfg
-rw-rw-r-- 1 nagios nagios 10621 Nov 11 15:39 templates.cfg
-rw-rw-r-- 1 nagios nagios  3180 Nov 11 15:39 timeperiods.cfg
-rw-rw-r-- 1 nagios nagios  3991 Nov 11 15:39 windows.