Prerequisites

Before installing NCPA on your Debian 11 device, make sure you have the following items:

• A user with sudo privileges
• A working Debian 11 device

Step 1: Download NCPA

To start off with installing NCPA, go to the tmp directory to store the file. You may use another location as well.

cd /tmp

Once in the desired location, the following command can be run to download the correlating NCPA version.

wget https://assets.nagios.com/downloads/ncpa/ncpa-latest.d11.amd64.deb

When done downloading, it should look like this:

Step 2: Install NCPA

To install NCPA use this command:

dpkg -i ./ncpa-latest.d11.amd64.deb

The result should look like this:

Step 3: Configure NCPA

Next, to make NCPA more secure, go to the configuration file using this command:

nano /usr/local/ncpa/etc/ncpa.cfg 

The section that has the Community String will be down the file a bit. It will look like this:

Change the Community String to a new value and remember it for later.

Step 4: Start the Service

Now that all these changes have been made, it’s time to start up NCPA and save those changes. Use the following command to start NCPA:

systemctl restart ncpa_listener.service

Step 5: Start Monitoring Debian 11 Device in Nagios

In Nagios, go to Configuration > Configuration Wizards > NCPA.

The next page will ask for the IP address and the Community String. Fill in those fields and select Debian as the system. After you select Next, a page with defaults will appear. Those can be changed as seen fit or can be left as is.

Step 6: Host Status

Your Debian 11 device is now being monitored with NCPA. You can see more details about the Host if you go to Home > Host Status > Your Device.

If you have additional questions or other support-related questions, please visit Nagios Support. The Nagios Support Knowledgebase is also a great support resource.