Common Issues

  • Agent Not Connecting ⚠️
    Check if the Zabbix agent is running: 

    systemctl status zabbix-agent

    ✅ Ensure firewall rules allow traffic on port 10051.
    📌 Verify the agent configuration file /etc/zabbix/zabbix_agentd.conf

  • No Data in Monitoring Graphs 📈
    ⚠️ Confirm the item is correctly configured and the agent is transmitting data.
    📌 Check the Zabbix server logs: /var/log/zabbix/zabbix_server.log

  • Authentication Failed ❌
    ⚠️ Reset the password via the Zabbix web interface under Administration > Users.
    📌 Ensure the zabbix user has proper permissions on monitored hosts

Configuration Tips 🛠️

  • Use HostMetadata for automatic host grouping
  • Enable DebugLevel in zabbix_agentd.conf for detailed error logs
  • 🔧 Test configurations with: 
    zabbix_get -s <host_ip> -k <item_key>

Logs and Debugging 📄

  • Access server logs at: /var/log/zabbix/
  • 🧾 Use zabbix_log tool for log analysis
  • 🔍 Enable debug mode with: 
    zabbix_server -c -f

Best Practices 📌

  • 📌 Check Zabbix Agent Status for detailed troubleshooting steps
  • ⚠️ Regularly update Zabbix to fix known bugs
  • 📌 Monitor system.uname and system.cpu.load for system health
Zabbix Server
Zabbix Agent Configuration