Where is Nagios cfg?

11/10/202211/10/2022 | Sarah HendricksonSarah Hendrickson | 0 Comment | 12:00 am

Where is Nagios cfg?

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

How do I add hosts to Nagios monitoring?

Configure Nagios Server to monitor Linux host

Save and exit the configuration file. Now restart Nagios service and ensure that it is up and running. Remember to open port 5666 which is used by NRPE plugin on the firewall of the Nagios server. Finally, head out to the Nagios Server’s URL and click on ‘Hosts’.

How do I add multiple hosts in Nagios?

Select Configuration > Nagios Monitoring > Hosts, expand the Host Groups drop-down menu and select New. In the Host Group Properties screen, enter a host group Name which should be unique and not the same as a contact group, and enter an Alias. Next, optionally enter Notes.

What is host in Nagios?

Hosts and service configurations are the building blocks of Nagios Core. Host is just like a computer; it can be a physical device or virtual. Services are those which are used by Nagios to check something about a host.

What is Nagios config file?

By default, the CGI configuration file of Nagios is named cgi. cfg. It tells the CGIs where to find the main configuration file. The CGIs will read the main and host config files for any other data they might need. It contains all the user and group information and their rights and permissions.

How do I set up Nagios?

The step-by-step guide below shows how to install Nagios Core on Ubuntu 20.04.

  1. Step 1: Check for System Updates.
  2. Step 2: Install Prerequisite Packages.
  3. Step 3: Download Nagios Core.
  4. Step 4: Install Nagios.
  5. Step 5: Set up Apache and Nagios UI.
  6. Step 6: Create the First Nagios User.
  7. Step 7: Install Nagios Plugins.

How do I add Linux host to Nagios server for monitoring?

How to Add Linux Host to Nagios Monitoring Server

  1. Install NRPE Add-on and Nagios Plugins on remote Linux host:
  2. Add Nagios servers IP address, separated by a comma as mention below.
  3. Verify Nagios plugin:
  4. Command to start nrpe service on Linux host:
  5. Auto start nrpe service after reboot on Linux host:

How do I monitor a Linux server in Nagios?

Another common method of monitoring remote Linux/Unix hosts is to use the NRPE addon. NRPE allows you to execute plugins on remote Linux/Unix hosts. This is useful if you need to monitor local resources/attributes like disk usage, CPU load, memory usage, etc. on a remote host.

How do I add multiple Linux hosts to Nagios?

How do I change the hostname in Nagios?

Go to –> Configure –> Core configuration manager (CCM) –> Hosts –> Click on one of the hosts in question and replace “Host Name” with the hostname you wish to use for the server.

How do I find my Nagios server IP?

2 Answers

  1. Right click on nagios in vmware startup and check setting.
  2. in hardware , go to network adapter.
  3. in network connecton, change it to NAT : used to share the host’s IP address.
  4. click ok and start you vm, ip address should appear.

How do I manage Nagios?

Monitoring a Server with the NPRE service

  1. Install the software on the remote server:
  2. Compile it with the following commands:
  3. Create users and groups:
  4. Install the configuration files:
  5. Install NRPE:
  6. Install the service, so NPRE can be managed by systemd:
  7. Edit the file /usr/local/nagios/etc/nrpe.cfg.
  8. Restart the service:

What is Nagios configuration file?

How do I start a Nagios server?

Starting and Stopping Nagios

  1. Init Script: The easiest way to start the Nagios 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 configure Nagios on Linux?

Step 1 – Installing Nagios Core on Monitoring Server

  1. Installing Prerequisites. First, we will need to install Prerequisites on the Nagios monitoring server.
  2. Download the Nagios Source.
  3. Compile Source.
  4. Create User and Group.
  5. Installing Binaries.
  6. Install Service / Daemon.
  7. Install Command Mode.
  8. Install Configuration Files.

What all 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 monitor a remote Linux server with Nagios?

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.

How do I add a service to Nagios?

To create a new service, go to Configuration > Nagios Monitoring > Services > New service (or use Clone service), then enter aservice name and select a service template. Service templates store common object properties used to define multiple services.

How do I connect to Nagios?

Where does Nagios store data?

Nagios Log Server allows administrators to set the data path they would like their data to be stored. The default location is /usr/local/nagioslogserver/elasticsearch/data/, however with proper planning this path can be changed.

How do I know if Nagios is running?

As opposed to just checking that a web server is running on the classroom PCs, you could also check that t he nagios3 service is available, by requesting the /nagios3/ path.

What language is Nagios written?

CNagios / Programming language

How does Nagios collect data?

Nagios uses agents that are installed on both the network elements and the components that it monitors; they collect data using pull methodology. Nagios can also leverage the Simple Network Management Protocol (SNMP) to communicate with network switches or other components by using SNMP protocol to query their status.

How do I remotely monitor a Linux server?

To monitor Linux server performance, you’ll need to install a node exporter utility that collects multiple hardware-related and kernel-related metrics (CPU, disk utilization, memory, network statistics, etc.), then makes them available to the Prometheus server to scrape.

How do I monitor services in Nagios?

Monitoring your Linux host
Once the Nagios server and NRPE are installed, make the host visible to the Nagios server and include the services you wish to monitor. To accomplish this, create host configuration files in the /usr/local/nagios/etc/servers directory on the Nagios server.

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