Port 10809 is often used for the «Object-oriented File Transfer and Remote Access Protocol» (OFTP) over Secure Sockets Layer (SSL), which is essentially a secure file transfer system. It is sometimes used in conjunction with the OpenVAS vulnerability scanning system.
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 10809 | tcp | nbd | Linux Network Block | REGISTERED PORT |
UnOfficial
Unofficialy or sometimes with conflict, the same port may be used by different applications.
| Port | Protocol (TCP/UDP) | Description |