Prerequisites

Before you start, make sure you have the necessary items:

• Zorin OS device
• Administrative Privileges
• Nagios Log Server Instance
• Internet connection to download packages

Step 1: Install Rsyslog and SELinux

Update your system packages and install rsyslog and SELinux.

sudo apt update && sudo apt upgrade
sudo apt install rsyslog
sudo apt-get install selinux-utils

sudo apt update && sudo apt upgrade
sudo apt install rsyslog
sudo apt-get install selinux-utils

Enable and start Rsyslog.

sudo systemctl enable rsyslog
sudo systemctl start rsyslog

sudo systemctl enable rsyslog
sudo systemctl start rsyslog

Step 2: Configure Rsyslog to Forward Logs

Open the Rsyslog configuration file in a text editor.

sudo nano /etc/rsyslog.conf

sudo nano /etc/rsyslog.conf

Add the following lines in the rsyslog configuration file and replace your_nagios_log_server_ip with the IP address of your Nagios Log Server.

. @@your_nagios_log_server_ip:5544

. @@your_nagios_log_server_ip:5544

Save the changes and restart rsyslog.

sudo systemctl restart rsyslog

sudo systemctl restart rsyslog

Step 3: Download and Run the Setup Script

Open your web browser to login to Nagios Log Server.

From this Home page, click the + Linux button to add the log source for Zorin OS.

On the Linux Source Setup page, run the script from the box below and copy the commands to download and run the setup script on your Zorin OS system to check the logs and then add your Zorin OS IP address to verify that the logs are being received.

curl -sS -O http://"your Nagios Log Server ip address"/nagioslogserver/scripts/setup-linux.sh

curl -sS -O http://"your Nagios Log Server ip address"/nagioslogserver/scripts/setup-linux.sh

sudo bash setup-linux.sh -s "your Nagios Log Server ip address" -p 5544

sudo bash setup-linux.sh -s "your Nagios Log Server ip address" -p 5544

After running the script, you should see a confirmation message.

Step 4: Verify Log Forwarding from Your Zorin OS Machine

Check your Nagios Log Server dashboard to verify that logs are being received.

If your logs are not appearing, check the Rsyslog logs on your Zorin OS machine for any errors.

sudo tail -f /var/log/syslog

sudo tail -f /var/log/syslog

Conclusion

This concludes this guide on setting up Zorin OS logs in Nagios Log Server. You’ve successfully installed the necessary packages, configured log forwarding, created a custom filter, and started monitoring your logs. With this setup, you can efficiently manage and analyze your Zorin OS logs. If you have additional questions or other support-related questions, please visit us at our Nagios Support Forum, Nagios Knowledge Base, or Nagios Library.

Prerequisites

The requirements for this guide before you begin:

• Zorin OS device
• Administrative Privileges
• Nagios XI Instance
• Internet connection to download packages

Step 1: Install SNMP on Zorin OS

Update your package list:

sudo apt update

sudo apt update

Install SNMP and SNMP daemon:

sudo apt install snmp snmpd

sudo apt install snmp snmpd

Step 2: Configure SNMP on Zorin OS

Edit the SNMP configuration file in a text editor.

sudo nano /etc/snmp/snmpd.conf

sudo nano /etc/snmp/snmpd.conf

If the SNMP file does not exist, you can create it manually using the following command.

sudo mkdir -p /etc/snmp

sudo mkdir -p /etc/snmp

Add the following line to your configuration file. Replace YourCommunityString with your desired community string and NagiosServerIP with the IP address of your Nagios XI server.

rocommunity YourCommunityString NagiosServerIP

rocommunity YourCommunityString NagiosServerIP

This example show what the community string could look like.

rocommunity MySecureCommunityString 192.168.x.x

rocommunity MySecureCommunityString 192.168.x.x

Save your change and restart the SNMP daemon.

sudo systemctl restart snmpd

sudo systemctl restart snmpd

Step 3: Configure Firewall

If your firewall is on, make you allow SNMP traffic through the firewall.

sudo ufw allow 161/udp
sudo ufw reload

sudo ufw allow 161/udp
sudo ufw reload

Step 4: Add Zorin OS Host to Nagios XI

Open a web browser to login to Nagios XI webpage.

Navigate to the panel from the left and go to Configure > Configuration Wizards.

Look for Linux SNMP from the list of the configuration wizards.

Configure your SNMP for your Zorin OS machine by putting your IP address of your system and set your SNMP community string.

After that, configure your monitoring settings by choosing the services you want to monitor, like memory usage, and set thresholds for alerts if needed. Then review the configuration summary to ensure all details are correct and click Finish to apply the configuration.

Step 5: Verify Monitoring

Check the status of the services on your Zorin OS host by going to Home > Service Detail on the Nagios XI main page to verify if your device is being monitored.

Conclusion

By following this guide, you have successfully set up monitoring for Zorin OS using SNMP with Nagios XI. This integration allows you to efficiently track system performance and network devices, ensuring optimal reliability and security. If you have additional questions or other support-related questions, please visit us at our Nagios Support Forum, Nagios Knowledge Base, or Nagios Library.

Prerequisites

Here are the requirements on what you need:

• Zorin OS device
• Administrative Privileges
• Nagios XI Instance
• Internet connection to download packages

Step 1: Install NCPA on Zorin OS

Download the NCPA package for your system from the Nagios NCPA website. Get the DEB Linux one, which Zorin OS is based on Debian.

Locate your NCPA file from your file manager.

Press the Run Anyway to continue with the installation.

Install the NCPA file from the installer.

Step 2: Configure NCPA

Open a terminal and use a text editor to edit the NCPA configuration file located at /usr/local/ncpa/etc/ncpa.cfg.

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

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

Find the [api] section and set your secure token in the community string and change mytoken to your desire token. The token is used for authentication between Nagios XI and the NCPA agent.

community_string = mytoken

community_string = mytoken

Step 3: Start NCPA Service

After editing the configuration file, start and enable NCPA service to apply the changes.

sudo systemctl start ncpa
sudo systemctl enable ncpa

sudo systemctl start ncpa
sudo systemctl enable ncpa

Step 4: Firewall Configuration

If your have firewall enable, you need to configure your firewall to allow traffic on port 5693

sudo ufw allow 5693/tcp
sudo ufw reload

sudo ufw allow 5693/tcp
sudo ufw reload

After configuring the firewall, you can verify that the port is open.

sudo ufw status

sudo ufw status

Step 5: Accessing the NCPA Webpage

You can go to the NCPA webpage by going to a web browser and enter the following URL in the address bar, replacing NCPA_IP_Address with 0.0.0.0 or with the IP address of your Zorin OS machine. The port number is default at 5693.

https://<NCPA_IP_Address>:5693/

https://<NCPA_IP_Address>:5693/

After getting to the webpage’s URL, a security warning for an unfamiliar site will show up.

Bypass this by pressing Advanced and continue to your webpage.

After that, you will see the NCPA login page. You will be prompted to enter the authentication token you set from your NCPA configuration file. Enter the token to access the web interface.

Once logged in, you can explore various sections of the NCPA web interface.

Step 6: Add Zorin OS Host to Nagios XI

Log in to your Nagios XI web interface.

Proceed to the menu from the left and select Configure > Configuration Wizards from the side menu.

Find the Linux Server wizard from the list to start your NCPA configuration process.

Enter the IP address of your Zorin OS machine and your token you set before for authentication between Nagios XI and NCPA. The port number defaults to 5693.

Review the configuration summary and click Finish to apply the configuration. Nagios XI will now start monitoring the Zorin OS host.

Step 7: Verify Monitoring

Once the configuration is applied, go to Home > Service Detail to view the status of the services being monitored on your Zorin OS host. Check that the checks are running correctly and the data is being collected.

Conclusion

This concludes the setup for configuring Zorin OS with NCPA on Nagios XI. Your system is now ready for comprehensive monitoring, allowing you to track key metrics and ensure optimal performance and reliability. With this setup, you can proactively identify and resolve issues, minimizing downtime and enhancing resource management. If you have additional questions or other support-related questions, please visit us at our Nagios Support Forum, Nagios Knowledge Base, or Nagios Library.