TCP 9004
Synopsis
- ClickHouse database server uses TCP/9004 for its MySQL wire-compatibility listener (mysql_port), allowing MySQL clients and BI tools to connect to ClickHouse via the MySQL protocol.
- This is enabled by default in many ClickHouse deployments (e.g., upstream ClickHouse Server, Altinity builds, and ClickHouse Cloud), alongside other ClickHouse ports like 9000 (native) and 8123 (HTTP).
Observed activity
Last 30 days
Detailed chart