CIFS relies on which port for direct hosting without needing NetBIOS?

CIFS, or Common Internet File System, is a protocol used for sharing files and printers over a network. When it is implemented directly without relying on the NetBIOS layer, it utilizes TCP port 445. This direct approach is part of a trend to move away from older protocols, enabling CIFS to communicate over the Internet and modern networks more efficiently.

Port 445 specifically allows CIFS to operate using TCP/IP directly, hence eliminating the need for the older NetBIOS service, which traditionally used ports 137, 138, and 139 for its communication. The move to port 445 improves performance and security, as it reduces overhead associated with the NetBIOS services.

In summary, CIFS uses port 445 for direct hosting to facilitate efficient file and print sharing over the network without intermediary protocols, thus streamlining processes and improving overall network performance.