openSUSE 15 – Nagios Library https://library.nagios.com Complete Nagios monitoring resources and documentation Thu, 19 Feb 2026 18:30:55 +0000 en-US hourly 1 https://wordpress.org/?v=6.9.4 https://library.nagios.com/wp-content/uploads/2024/11/Nagios-Blue-N.svg openSUSE 15 – Nagios Library https://library.nagios.com 32 32 How to Monitor openSUSE 15 Logs with Nagios Log Server 2024R2 https://library.nagios.com/monitoring/how-to-monitor-opensuse-15-logs-with-nagios-log-server-2024r2/ Fri, 28 Mar 2025 21:16:10 +0000 https://library.nagios.com/?p=53783 Monitoring logs from openSUSE 15 with Nagios Log Server 2024R2 provides crucial visibility into system events, security incidents, and performance anomalies. This guide explains how to configure openSUSE to forward logs to Nagios Log Server and verify their integration with Nagios XI.

Step 1: Add a Log Source in Nagios Log Server

  1. Log in to Nagios Log Server.
  2. Click + Add Log Source.
  3. Select Linux as the source type.

Step 2: Run the Auto-Configuration Script on openSUSE

  1. Copy the script command from the Linux Source Setup page.
  2. On the openSUSE server, run: 
curl -sS -O http://<NagiosLogServerIP>/nagioslogserver/scripts/setup-linux.sh sudo bash setup-linux.sh -s <NagiosLogServerIP> -p 5544

This sets up rsyslog to forward logs to the Log Server.

    Step 3: Verify Logs are Received

    • Return to the setup page in Nagios Log Server.
    • Enter the openSUSE server’s IP in the Verify Incoming Logs section.
    • Or run a host query from Dashboards > Search: 
    host.ip:<openSUSE-IP>
    • To test manually, run:
    logger "This is a test log entry"

    Step 4: (Optional) Manual Configuration

    1.Check the rsyslog work directory: 

      ls -d /var/lib/rsyslog || ls -d /var/spool/rsyslog

      2.Manually create or edit the forwarding config: 

        sudo vi /etc/rsyslog.d/99-nagioslogserver.conf

        Add the following line: 

        *.* @<NagiosLogServerIP>:5544;RSYSLOG_SyslogProtocol23Format

        3.Restart rsyslog: 

        sudo systemctl restart rsyslog.service

          Step 5: Link to Nagios XI

          • Utilize queries and alert conditions in Nagios Log Server to trigger alerts in Nagios XI via API or event handlers.
          • Integrate log monitoring with service checks for a comprehensive system overview.

          Final Notes

          • Logs are forwarded over port 5544; ensure openSUSE’s firewall allows outbound traffic on this port.
          • The + Add Log Source feature in Nagios Log Server allows you to add additional log sources as needed.
          • Regularly review logs in Nagios Log Server to detect system anomalies and security threats.

          Conclusion

          By following this guide, you can successfully monitor and analyze openSUSE 15 logs with Nagios Log Server 2024R2 in Nagios XI. This setup ensures proactive issue detection and enhances overall system observability. For best results, maintain regular log audits and optimize alert configurations to capture critical events.

          ]]>                     How to Monitor openSUSE 15 with SNMP in Nagios XI https://library.nagios.com/monitoring/how-to-monitor-opensuse-15-with-snmp-in-nagios-xi/ Fri, 28 Mar 2025 20:51:02 +0000 https://library.nagios.com/?p=53774 Monitoring openSUSE 15 using SNMP in Nagios XI is a powerful way to track system health and performance metrics without installing additional agents. This guide covers SNMP setup on openSUSE and integrating it with Nagios XI.

          Step 1: Install SNMP on openSUSE 15

          As root, run:

          sudo zypper install net-snmp net-snmp-tools

          Step 2: Configure SNMP v2c Access

          1. Backup the default configuration:

          sudo cp /etc/snmp/snmpd.conf /etc/snmp/snmpd.bak

          2. Replace the configuration with:

           echo 'rocommunity Str0ngC0mmunity <Nagios-XI-IP>' | sudo tee /etc/snmp/snmpd.conf

          3. Restart SNMP:

          sudo systemctl restart snmpd.service

          Step 3: Open Firewall Port 161/UDP

          sudo firewall-cmd --zone=public --add-port=161/udp
sudo firewall-cmd --zone=public --add-port=161/udp --permanent

          Step 4: Enable SNMP on Boot

          sudo systemctl enable snmpd.service

          Step 5: Test SNMP Connectivity

          From your Nagios XI server:

          cd /usr/local/nagios/libexec
./check_snmp_storage.pl -H <openSUSE-IP> -C Str0ngC0mmunity -m "^/$" -w 2 -c 4

          You should receive disk usage output. If not, review SNMP and firewall settings.

          Step 6: Use the Linux SNMP Wizard in Nagios XI

          1. Go to Configure > Run a Configuration Wizard > Linux SNMP.
          2. Enter the openSUSE server’s IP and SNMP community string.
          3. Select the metrics you want (disk usage, processes, etc.).
          4. Adjust thresholds as needed.
          5. Finish the wizard to apply the configuration.

          Final Notes

          • openSUSE uses the same net-snmp tools as other Linux distributions.
          • Port 161/UDP must be open to receive SNMP queries.
          • SNMP v3 setup is also supported if stronger security is required.

          Conclusion

          By configuring SNMP on openSUSE 15 and integrating it with Nagios XI, you gain detailed visibility into system performance without installing additional agents. Regularly reviewing Nagios XI dashboards and refining SNMP configurations ensures optimal monitoring and proactive issue resolution.

          ]]>                     How to Monitor openSUSE 15 with NCPA in Nagios XI https://library.nagios.com/documentation/how-to-monitor-opensuse-15-with-ncpa-in-nagios-xi/ Fri, 28 Mar 2025 19:34:44 +0000 https://library.nagios.com/?p=53755 Monitoring openSUSE 15 with Nagios XI using the NCPA (Nagios Cross Platform Agent) is a simple and powerful method for collecting system metrics like CPU, memory, disk usage, and more. This guide walks through the installation and integration process using accurate instructions from the official NCPA documentation.

          Step 1: Install NCPA on openSUSE 15

          Option 1: Using Nagios Repository (Recommended)

           sudo zypper install ncpa

          Option 2: Manual RPM Installation

          • Run the following: 
          cd /tmp wget https://assets.nagios.com/downloads/ncpa3/ncpa-<version>.rpm sudo rpm -ivh ncpa-<version>.rpm

          Step 2: Configure NCPA

          1. Edit the configuration file:

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

          2. Set a secure token by modifying:

          community_string = Str0ngT0k3n

          3. Save and exit (:wq).

          Step 3: Restart the NCPA Service

          sudo systemctl restart ncpa

          Step 4: Allow NCPA Port Through the Firewall

          sudo firewall-cmd --zone=public --add-port=5693/tcp
sudo firewall-cmd --zone=public --add-port=5693/tcp --permanent

          Step 5: Verify the NCPA Web Interface

          1. Open a web browser and go to:

          https://<openSUSE-IP>:5693

          2. Accept any SSL warnings.

          3. Log in using your configured token.

          Step 6: Add the Host in Nagios XI

          1. Log in to Nagios XI.
          2. Navigate to Configure > Monitoring Wizard > NCPA.
          3. Enter your openSUSE IP and token.
          4. Select services (CPU, memory, etc.) to monitor.
          5. Complete the wizard to apply monitoring.

          Final Tip

          • NCPA listens on TCP port 5693.
          • Use a strong token to prevent unauthorized access.
          • The NCPA web interface includes built-in help and endpoint documentation.

          Conclusion

          By following this guide, you can successfully monitor openSUSE 15 with Nagios XI using NCPA. This setup allows you to track essential system metrics efficiently and receive alerts on performance issues. Regularly check Nagios XI dashboards to ensure accurate data collection and troubleshoot any connectivity issues by reviewing firewall rules and service statuses.

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