Curated port reference

Port 11211: Memcached

Memcached commonly uses port 11211 over TCP + UDP. Review its purpose, traffic direction and operational security considerations.

11211TCP + UDP

Memcached

Default Memcached client endpoint; UDP support is commonly disabled.

Typical use

Memcached endpoints in environments where this service is explicitly configured.

Traffic direction

Client to server

Security considerations

Never expose publicly. Keep private, disable UDP unless required, and use network controls because native authentication is limited.

Memcached