How to Install Nagios Server on CentOS/RHEL 8/7/6

How to Install Nagios Server on CentOS/RHEL 8/7/6

1. Step 1 – Install Required Packages. ...
2. Step 2 – Setup User Accounts. ...
3. Step 3 – Install Nagios Core Service. ...
4. Step 4 – Configure Apache Authentication. ...
5. Step 5 – Install Nagios Plugins. ...
6. Step 6 – Verify and Start Nagios. ...
7. Step 7 – Access Nagios in Web Browser.

1. How do I install and configure Nagios Core on CentOS 8 Rhel 8?
2. How install and configure Nagios on CentOS 7?
3. How install and configure Nagios on CentOS 8?
4. How do you install and configure Nagios on Redhat Linux?
5. What is the latest version of Nagios?
6. How do I install Nagios monitoring on CentOS 7?
7. How do I add a host in Nagios for monitoring CentOS 7?
8. What can Nagios monitor?
9. How do I run Nagios?
10. How do I add a host to Nagios monitoring?
11. Where is Nagios config?
12. What is Nagios in Linux?
13. How install Nrpe in Linux?
14. How do I use Nagios monitoring tool?

How do I install and configure Nagios Core on CentOS 8 Rhel 8?

How to Install and Configure Nagios Core on CentOS 8 / RHEL 8

1. Prerequisites of Nagios Core.
2. Step 1: Install LAMP Stack.
3. Step 2: Install Required packages.
4. Step 3: Create a Nagios user account.
5. Step 4: Download and install Nagios core.
6. Step 5: Configure Apache Web Server Authentication.
7. Step 6: Download & install Nagios Plugins.
8. Step 7: Verify and Start Nagios.

How install and configure Nagios on CentOS 7?

Perform the following steps to install the latest version of Nagios Core from source.

1. Downloading Nagios. ...
2. Compiling Nagios. ...
3. Creating Nagios User And Group. ...
4. Installing Nagios Binaries. ...
5. Creating External Command Directory. ...
6. Install Nagios Configuration Files. ...
7. Install Apache Configuration Files. ...
8. Creating Systemd Unit File.

How install and configure Nagios on CentOS 8?

Install and Configure Nagios 4 on RHEL 8 / CentOS 8

1. Step 1: Install dependencies. It is recommended to work on an update system. ...
2. Step 2: Download Nagios Core. ...
3. Step 3: Compiling Nagios Core on RHEL 8 / CentOS 8. ...
4. Step 4: Create Nagios Web user. ...
5. Step 5: Install Nagios Plugins. ...
6. Step 6: Verify installation and Start Nagios service. ...
7. Step 7: Access Nagios Web Dashboard.

How do you install and configure Nagios on Redhat Linux?

1. Step 1: Install Required Dependencies. ...
2. Step 2: Create Nagios User and Group. ...
3. Step 3: Download Nagios Core 4.4. ...
4. Step 4: Extract Nagios Core and its Plugins. ...
5. Step 5: Customizing Nagios Configuration. ...
6. Step 6: Install and Configure Web Interface for Nagios. ...
7. Step 7: Compile and Install Nagios Plugin.

What is the latest version of Nagios?

The latest version of Nagios Core is 4.4. 6 was released on 2020-04-28.

How do I install Nagios monitoring on CentOS 7?

1. Introduction. In this tutorial, we will cover the installation of Nagios 4, a very popular open source monitoring system, on CentOS 7 or RHEL 7. ...
2. Install Build Dependencies. ...
3. Create Nagios User and Group. ...
4. Install Nagios Core. ...
5. Install Nagios Plugins. ...
6. Install NRPE. ...
7. Organize Nagios Configuration. ...
8. Configure Nagios Contacts.

How do I add a host in Nagios for monitoring CentOS 7?

Please use the below instructions to install Nagios Plugins and NRPE daemon on the Remote Linux Host.

1. Step 1: Install Required Dependencies. ...
2. Step 2: Create Nagios User. ...
3. Step 3: Install the Nagios Plugins. ...
4. Step 4: Extract Nagios Plugins. ...
5. Step 5: Compile and Install Nagios Plugins. ...
6. Step 6: Install Xinetd.

What can Nagios monitor?

For example, Nagios can monitor memory usage, disk usage, microprocessor load, the number of currently running processes and log files. Nagios also can monitor services, such as Simple Mail Transfer Protocol (SMTP), Post Office Protocol 3 (POP3), Hypertext Transfer Protocol (HTTP) and other common network protocols.

How do I run Nagios?

Starting Nagios Core

1. Init Script: The easiest way to start the Nagios Core daemon is by using the init script like so: /etc/rc.d/init.d/nagios start.
2. Manually: You can start the Nagios daemon manually with the -d command line option like so: /usr/local/nagios/bin/nagios -d /usr/local/nagios/etc/nagios.cfg.

How do I add a host to Nagios monitoring?

How to Add Windows Host to Nagios Monitoring Server

1. Install NSClient++ addon on the Windows Machine.
2. Configure Nagios Server for monitoring Windows Machine.
3. Add new host and service definitions for Windows machine monitoring.
4. Restart the Nagios Service.

Where is Nagios config?

The main configuration file is usually named nagios. cfg and located in the /usr/local/nagios/etc/ directory.

What is Nagios in Linux?

Nagios provides complete monitoring of Linux operating systems and distributions – including operating system metrics, service state, process state, file system usage, and more. When you use Nagios to monitor your Linux environment, you're using one of the most powerful Linux monitoring tools on the planet.

How install Nrpe in Linux?

How To Install NRPE on CentOS/RHEL 7/6

1. Step 1 – Install EPEL Repository. NRPE packages and plugins are available under EPEL yum repository, Enable EPEL repository using one of below commands. ...
2. Step 2 – Install NRPE and Nrpe-plugins. ...
3. Step 3 – Configure NRPE. ...
4. Step 4 – Start NRPE Service. ...
5. Step 5 – Test NRPE from Nagios Server.

How do I use Nagios monitoring tool?

The complete process to install Nagios can be summarized in four steps:

1. Install Required Packages In The Monitoring Server.
2. Install Nagios Core, Nagios Plugins And NRPE (Nagios Remote Plugin Executor)
3. Set Nagios Password To Access The Web Interface.
4. Install NRPE In Client.