Decoding Zabbix Proxy Traffic for Faster Troubleshooting

This article details how to troubleshoot Zabbix proxies by decoding their communication with the Zabbix server. While basic health metrics are usually sufficient, deeper analysis can be achieved by capturing and interpreting the TCP traffic (port 10050/10051) using tools like Wireshark. Modern Zabbix traffic is compressed, but the article provides commands to capture, decompress, and analyze the packets, identifying Zabbix data by its "ZBXD" signature and explaining the initial header structure for further investigation.