Nagios Support Forum

Hi,

I have installed nrpe 3.0 on CentOS Linux release 7.2.1511 (Core)

[root@~]# cat /etc/init/nrpe.conf
# nrpe - the Nagios Remote Plugin Executor
#
# nrpe is a program that runs plugins on this host
# and reports the results back to a nagios server
#
# Copyright (c) 2016 Nagios(R) Core(TM) Development Team
description "the Nagios Remote Plugin Executor"
oom -10
start on started network
stop on runlevel [!2345]
respawn
exec /usr/sbin/nrpe -c /etc/nagios/nrpe.cfg -f
[root@~]# rpm -qa | grep nrpe
nrpe-3.0-1.x86_64
nrpe-plugin-3.0-1.x86_64
[root@~]# rpm -qa | grep nagios
nagios-plugins-2.2.0-1.x86_64
[root@~]# rpm -qil nrpe-3.0-1.x86_64
Name : nrpe
Version : 3.0
Release : 1
Architecture: x86_64
Install Date: Wed Mar 22 15:35:18 2017
Group : Application/System
Size : 119087
License : GPL
Signature : (none)
Source RPM : nrpe-3.0-1.src.rpm
Build Date : Tue Aug 23 20:58:15 2016
Build Host : app02.helpchat.in
Relocations : /usr /etc/init /etc/nagios
URL : http://www.nagios.org
Summary : Host/service/network monitoring agent for Nagios
Description :
NPRE (Nagios Remote Plugin Executor) is a system daemon that
will execute various Nagios plugins locally on behalf of a
remote (monitoring) host that uses the check_nrpe plugin.
Various plugins that can be executed by the daemon are available
at: http://sourceforge.net/projects/nagiosplug
This package provides the client-side NRPE agent (daemon).
/etc/init/nrpe.conf
/etc/nagios
/etc/nagios/nrpe.cfg
/usr/sbin/nrpe
/usr/sbin/nrpe-uninstall
/usr/share/doc/nrpe-3.0
/usr/share/doc/nrpe-3.0/Changelog
/usr/share/doc/nrpe-3.0/LEGAL
/usr/share/doc/nrpe-3.0/README.SSL.md
/usr/share/doc/nrpe-3.0/README.md
/usr/share/doc/nrpe-3.0/SECURITY.md
[root@~]# rpm -qil nrpe-plugin-3.0-1.x86_64
Name : nrpe-plugin
Version : 3.0
Release : 1
Architecture: x86_64
Install Date: Wed Mar 22 15:35:17 2017
Group : Application/System
Size : 64450
License : GPL
Signature : (none)
Source RPM : nrpe-3.0-1.src.rpm
Build Date : Tue Aug 23 20:58:15 2016
Build Host : app02.helpchat.in
Relocations : /usr /etc/init /etc/nagios
URL : http://www.nagios.org
Summary : Provides nrpe plugin for Nagios.
Description :
NPRE (Nagios Remote Plugin Executor) is a system daemon that
will execute various Nagios plugins locally on behalf of a
remote (monitoring) host that uses the check_nrpe plugin.
Various plugins that can be executed by the daemon are available
at: http://sourceforge.net/projects/nagiosplug
This package provides the server-side NRPE plugin for
Nagios-related applications.
/usr/lib/nagios/plugins
/usr/lib/nagios/plugins/check_nrpe
/usr/share/doc/nrpe-plugin-3.0
/usr/share/doc/nrpe-plugin-3.0/Changelog
/usr/share/doc/nrpe-plugin-3.0/LEGAL
/usr/share/doc/nrpe-plugin-3.0/README.md
[root@~]# cat /etc/redhat-release
CentOS Linux release 7.2.1511 (Core)
[root@~]#
[root@~]# systemctl enable nrpe.service
Failed to execute operation: No such file or directory
[root@~]# service nrpe status
Redirecting to /bin/systemctl status nrpe.service
● nrpe.service
Loaded: not-found (Reason: No such file or directory)
Active: inactive (dead)
[root@~]#

I am not seeing the nrpe service when i run command #systemctl list-unit-files | grep nrpe on CentOS Linux release 7.2.1511 (Core)

Any help will be highly appreciable. Thanks in Advance.

Regards,

Kaushal

The systemd unit file can be found in the nrpe-3.0.1/startup directory of the nrpe tarball(https://github.com/NagiosEnterprises/nr ... 0.1.tar.gz). On my system it is under /tmp/nrpe-3.0.1/startup/default-service. Copy this file to the /etc/systemd/system/ directory with:

cp /tmp/nrpe-3.0.1/startup/default-service /etc/systemd/system/nrpe.service

change permissions with:

chmod 644 /etc/systemd/system/nrpe.service

Hi cdienger,

I followed the below steps.

[root@~]#cd /tmp/nrpe-3.0.1/startup/
[root@~]# ll
total 76
-rw-rw-r-- 1 root root 1263 Sep 8 2016 bsd-init.in
-rw-rw-r-- 1 root root 1070 Sep 8 2016 debian-init.in
-rw-rw-r-- 1 root root 324 Sep 8 2016 default-inetd.in
-rw-rw-r-- 1 root root 3190 Sep 8 2016 default-init.in
-rw-rw-r-- 1 root root 608 Sep 8 2016 default-service.in
-rw-rw-r-- 1 root root 404 Sep 8 2016 default-socket-svc.in
-rw-rw-r-- 1 root root 224 Sep 8 2016 default-socket.in
-rw-rw-r-- 1 root root 424 Sep 8 2016 default-xinetd.in
-rw-rw-r-- 1 root root 920 Sep 8 2016 mac-inetd.plist.in
-rw-rw-r-- 1 root root 754 Sep 8 2016 mac-init.plist.in
-rw-rw-r-- 1 root root 660 Sep 8 2016 newbsd-init.in
-rw-rw-r-- 1 root root 228 Sep 8 2016 openbsd-init.in
-rw-rw-r-- 1 root root 202 Sep 8 2016 openrc-conf.in
-rw-rw-r-- 1 root root 976 Sep 8 2016 openrc-init.in
-rw-rw-r-- 1 root root 376 Sep 8 2016 rh-upstart-init.in
-rw-rw-r-- 1 root root 2195 Sep 8 2016 solaris-inetd.xml.in
-rw-rw-r-- 1 root root 3191 Sep 8 2016 solaris-init.xml.in
-rw-rw-r-- 1 root root 91 Sep 8 2016 tmpfile.conf.in
-rw-rw-r-- 1 root root 454 Sep 8 2016 upstart-init.in
[root@~]#cp /tmp/nrpe-3.0.1/startup/default-service.in /etc/systemd/system/nrpe.service
[root@~]# systemctl status nrpe.service -l
● nrpe.service - Nagios Remote Program Executor
Loaded: error (Reason: Invalid argument)
Active: inactive (dead)
Docs: http://www.nagios.org/documentation

Mar 23 23:17:25 int-02.ttelchat.in systemd[1]: [/etc/systemd/system/nrpe.service:14] Not an absolute path, ignoring: @piddir@/nrpe.pid
Mar 23 23:17:25 int-02.ttelchat.in systemd[1]: [/etc/systemd/system/nrpe.service:17] Executable path is not absolute, ignoring: @sbindir@/nrpe -c @pkgsysconfdir@/nrpe.cfg -f
Mar 23 23:17:25 int-02.ttelchat.in systemd[1]: nrpe.service lacks both ExecStart= and ExecStop= setting. Refusing.
Mar 23 23:17:25 int-02.ttelchat.in systemd[1]: [/etc/systemd/system/nrpe.service:14] Not an absolute path, ignoring: @piddir@/nrpe.pid
Mar 23 23:17:25 int-02.ttelchat.in systemd[1]: [/etc/systemd/system/nrpe.service:17] Executable path is not absolute, ignoring: @sbindir@/nrpe -c @pkgsysconfdir@/nrpe.cfg -f
Mar 23 23:17:25 int-02.ttelchat.in systemd[1]: nrpe.service lacks both ExecStart= and ExecStop= setting. Refusing.
Warning: nrpe.service changed on disk. Run 'systemctl daemon-reload' to reload units.
[root@~]# cat /etc/systemd/system/nrpe.service
[Unit]
Description=Nagios Remote Program Executor
Documentation=http://www.nagios.org/documentation
After=var-run.mount nss-lookup.target network.target local-fs.target time-sync.target
Before=getty@tty1.service plymouth-quit.service xdm.service
Conflicts=nrpe.socket

[Install]
WantedBy=multi-user.target

[Service]
Type=simple
Restart=on-abort
PIDFile=/var/run/nrpe.pid
RuntimeDirectory=nrpe
RuntimeDirectoryMode=0755
ExecStart=/usr/sbin/nrpe -c /etc/nagios/nrpe.cfg -f
ExecStopPost=/bin/rm -f /var/run/nrpe.pid
TimeoutStopSec=60
User=@nrpe_user@
Group=@nrpe_group@
PrivateTmp=true
OOMScoreAdjust=-500
[root@~]#

Please do let me know if you need any additional details.

Regards,

Kaushal

There are two similar files found in the startup directory; default-service.in and default-service. You copied the default-service.in file when you should have copied the default-service file.