This guide will walk you through how to install Nagios Plugins on Rocky Linux 8. Nagios plugins are standalone extensions to Nagios Core that enables Nagios to monitor databases, operating systems, services, applications, network equipment, protocols etc.
To use Nagios Plugins, you need to have installed and Setup Nagios Core server. Follow the link below to install Nagios server on Rocky Linux 8.
Install Nagios Server on Rocky Linux 8
Install Nagios Plugins on Rocky Linux 8
Once you have setup the Nagios Core server, proceed to install the Nagios plugins.
Well, there are two ways in which you can install Nagios Plugins on Rocky Linux 8 system.
- Building Nagios Plugins from the source
- Installing Nagios Plugins from EPEL Repos (Probably the easiest)
We will cover the two installation methods.
Building Nagios Plugins from the Source on Rocky Linux 8
Install Required Build Tools and Dependencies
Nagios plugins are build from the source code. Hence, you need to install required build tools and dependencies.
Some of the packages below might have been installed if you followed the Nagios guide above.
dnf install gcc glibc glibc-common make gettext automake autoconf wget openssl-devel
Download Nagios Plugins Source Code
Check for any latest Nagios plugins on Nagios Plugins page.
Next, download Nagios plugins source code.
wget http://www.nagios-plugins.org/download/nagios-plugins-2.3.3.tar.gz
Extract Nagios Plugins
Once downloaded, extract it by running the command below
tar xzf nagios-plugins-2.3.3.tar.gz
Configure Nagios Plugins
Navigate to Nagios plugins source directory and run the configure script to adapt the plugins to the system and check for any missing dependency.
cd nagios-plugins-2.3.3
./configure --with-nagios-user=nagios --with-nagios-group=nagios
Compile Nagios Plugins on Rocky Linux 8
If there is no configuration error, proceed to compile Nagios.
Ensure that user nagios is already created before you can proceed. You might need to install NRPE agent first.
getent passwd nagios
nagios:x:974:974::/var/spool/nagios:/sbin/nologin
The compile Nagios plugins.
make
Install Nagios Plugins
You can now run the command below to install Nagios Plugins on Rocky Linux 8.
make install
This will install default Nagios plugins under the /usr/local/nagios/libexec/ directory.
ls /usr/local/nagios/libexec/
check_apt check_breeze check_by_ssh check_clamd check_cluster check_dhcp check_disk check_disk_smb check_dummy check_file_age check_flexlm check_ftp check_http check_icmp check_ide_smart check_ifoperstatus check_ifstatus check_imap check_ircd check_jabber check_ldap check_ldaps check_load check_log check_mailq check_mrtg check_mrtgtraf check_nagios check_nntp check_nntps check_nt check_ntp check_ntp_peer check_ntp_time check_nwstat check_oracle check_overcr check_ping check_pop check_procs check_real check_rpc check_sensors check_simap check_smtp check_spop check_ssh check_ssl_validity check_ssmtp check_swap check_tcp check_time check_udp check_ups check_uptime check_users check_wave negate remove_perfdata urlize utils.pm utils.sh
Restart Nagios Core service
Now restart Nagios core service.
systemctl restart nagios
After that, login Nagios Server Web interface on the browser to confirm that the localhost services and state are now being monitored.
Check the local host status by clicking on the Hosts under Current Status on the left panel.
Check the status of the localhost services by clicking Services under Current Status on the left panel.
There you go. You have successfully installed Nagios Plugins on Rocky Linux 8 for localhost state and and service status monitoring.
Install Nagios Plugins from EPEL Repository
It is also possible to install Nagios plugins on Rocky Linux 8 from EPEL repository.
Install EPEL repository on Rocky Linux 8
dnf install epel-release
Once the installation is done, you can search for the available Nagios plugins by running the command below;
dnf search nagios-plugins-*
====================================================================== Name Matched: nagios-plugins-* ====================================================================== nagios-plugins-all.x86_64 : Nagios Plugins - All plugins nagios-plugins-apt.x86_64 : Nagios Plugin - check_apt nagios-plugins-bonding.x86_64 : Nagios plugin to monitor Linux bonding interfaces nagios-plugins-breeze.x86_64 : Nagios Plugin - check_breeze nagios-plugins-by_ssh.x86_64 : Nagios Plugin - check_by_ssh nagios-plugins-check-updates.x86_64 : A Nagios plugin to check if Red Hat or Fedora system is up-to-date nagios-plugins-cluster.x86_64 : Nagios Plugin - check_cluster nagios-plugins-dbi.x86_64 : Nagios Plugin - check_dbi nagios-plugins-dhcp.x86_64 : Nagios Plugin - check_dhcp nagios-plugins-dig.x86_64 : Nagios Plugin - check_dig nagios-plugins-disk.x86_64 : Nagios Plugin - check_disk nagios-plugins-disk_smb.x86_64 : Nagios Plugin - check_disk_smb nagios-plugins-dns.x86_64 : Nagios Plugin - check_dns nagios-plugins-dummy.x86_64 : Nagios Plugin - check_dummy nagios-plugins-file_age.x86_64 : Nagios Plugin - check_file_age nagios-plugins-flexlm.x86_64 : Nagios Plugin - check_flexlm nagios-plugins-fping.x86_64 : Nagios Plugin - check_fping nagios-plugins-fts.noarch : Nagios probes to be run remotely against FTS3 machines nagios-plugins-hpjd.x86_64 : Nagios Plugin - check_hpjd nagios-plugins-http.x86_64 : Nagios Plugin - check_http nagios-plugins-icmp.x86_64 : Nagios Plugin - check_icmp nagios-plugins-ide_smart.x86_64 : Nagios Plugin - check_ide_smart nagios-plugins-ifoperstatus.x86_64 : Nagios Plugin - check_ifoperstatus nagios-plugins-ifstatus.x86_64 : Nagios Plugin - check_ifstatus nagios-plugins-ircd.x86_64 : Nagios Plugin - check_ircd nagios-plugins-ldap.x86_64 : Nagios Plugin - check_ldap nagios-plugins-load.x86_64 : Nagios Plugin - check_load nagios-plugins-log.x86_64 : Nagios Plugin - check_log nagios-plugins-mailq.x86_64 : Nagios Plugin - check_mailq nagios-plugins-mrtg.x86_64 : Nagios Plugin - check_mrtg nagios-plugins-mrtgtraf.x86_64 : Nagios Plugin - check_mrtgtraf nagios-plugins-mysql.x86_64 : Nagios Plugin - check_mysql nagios-plugins-nagios.x86_64 : Nagios Plugin - check_nagios nagios-plugins-nrpe.x86_64 : Provides nrpe plugin for Nagios nagios-plugins-nt.x86_64 : Nagios Plugin - check_nt nagios-plugins-ntp.x86_64 : Nagios Plugin - check_ntp nagios-plugins-nwstat.x86_64 : Nagios Plugin - check_nwstat nagios-plugins-openmanage.x86_64 : Nagios plugin to monitor hardware health on Dell servers nagios-plugins-oracle.x86_64 : Nagios Plugin - check_oracle nagios-plugins-overcr.x86_64 : Nagios Plugin - check_overcr nagios-plugins-perl.x86_64 : Nagios plugins perl dep. nagios-plugins-pgsql.x86_64 : Nagios Plugin - check_pgsql nagios-plugins-ping.x86_64 : Nagios Plugin - check_ping nagios-plugins-procs.x86_64 : Nagios Plugin - check_procs nagios-plugins-radius.x86_64 : Nagios Plugin - check_radius nagios-plugins-real.x86_64 : Nagios Plugin - check_real nagios-plugins-remove_perfdata.x86_64 : Nagios plugin tool to remove perf data nagios-plugins-rpc.x86_64 : Nagios Plugin - check_rpc nagios-plugins-sensors.x86_64 : Nagios Plugin - check_sensors nagios-plugins-smtp.x86_64 : Nagios Plugin - check_smtp nagios-plugins-snmp.x86_64 : Nagios Plugin - check_snmp nagios-plugins-ssh.x86_64 : Nagios Plugin - check_ssh nagios-plugins-ssl_validity.x86_64 : Nagios Plugin - check_ssl_validity nagios-plugins-swap.x86_64 : Nagios Plugin - check_swap nagios-plugins-tcp.x86_64 : Nagios Plugin - check_tcp nagios-plugins-time.x86_64 : Nagios Plugin - check_time nagios-plugins-ups.x86_64 : Nagios Plugin - check_ups nagios-plugins-uptime.x86_64 : Nagios Plugin - check_uptime nagios-plugins-users.x86_64 : Nagios Plugin - check_users nagios-plugins-wave.x86_64 : Nagios Plugin - check_wave
You can also run the command below to list all plugins.
dnf list nagios-plugins-*
You can now install the specific plugins that you require. For example, to install Nagios plugins that checks the load, http, users, processes, disk space, swap space, uptime,dns, run the command below;
dnf install nagios-plugins-{load,http,users,procs,disk,swap,nrpe,uptime,dns}
Plugins that are installed using the package manager as stored under /usr/lib64/nagios/plugins/.
ls -1 /usr/lib64/nagios/plugins/
check_disk check_dns check_http check_load check_nrpe check_procs check_swap check_uptime check_users eventhandlers negate urlize utils.sh
There you go.
In our next guide, we will discuss how to install Nagios Remote Execution Plugins for remote host monitoring.
See Other similar guides by following the link below;
Nagios SNMP Monitoring of Linux Hosts on AlienVault USM/OSSIM
How to Install Nagios Plugins and NRPE agents on CentOS 7/RHEL 7/Fedora 29
Configure Nagios Availability Monitoring on AlienVault USM/OSSIM
How to Install Nagios Plugins From Source RHEL/CentOS/Oracle Linux
