v.22.4Improvement

Allow Server Binding to Low-Numbered Ports in ClickHouse

Allow server to bind to low-numbered ports (e.g. 443). ClickHouse installation script will set cap_net_bind_service to the binary file. #35451 (Alexey Milovidov).
ClickHouse server can now bind to low-numbered ports (e.g., 443) by setting the cap_net_bind_service capability on the binary.

Why it matters

This feature allows ClickHouse to listen on privileged ports below 1024 without requiring root privileges, improving security and simplifying deployment in environments where standard ports like 443 are necessary.

How to use it

Use the ClickHouse installation script, which automatically sets the cap_net_bind_service capability on the ClickHouse server binary, enabling it to bind to low-numbered ports.