Port 113 is used for the Identification Protocol (Ident), which is used to identify the user who initiated a connection to a server. It is commonly used by Internet Relay Chat (IRC) servers to identify users and enforce security policies.
Ports those registered with IANA are shown as official ports. The same port number may be unofficialy used by various services or applications. The official usage are listed separately below its usage may change from time to time.
Official
Port | Protocol (TCP/UDP) | Title | Description | Port Type |
Port 113 | tcp | auth | Authentication Service | WELL KNOWN PORT |
Port 113 | udp | auth | Authentication Service | WELL KNOWN PORT |
Port 113 | tcp | ident | WELL KNOWN PORT |
UnOfficial
Unofficialy or sometimes with conflict, the same port may be used by different applications.
Port | Protocol (TCP/UDP) | Description |
Port 113 | ident�Identification Protocol used by IRC servers to identify users |