Network Basic Input/Output System: Provides network communication services for LANs that use NetBIOS TCP Port 139 UDP Port 137, 138
Category: Networks
What is DNS?
Domain Name System: Resolves domain names to corresponding IP addresses TCP Port 53 UDP Port 53
What is Telnet?
Telnet: Used to connect to a remote host (typically via a terminal emulator) TCP Port 23
What is SSH?
Secure Shell: Securely connect to a remote host (typically via a terminal emulator) TCP Port : 22
What is FTP?
File Transfer Protocol: Transfers files with a remote host (typically requires authentication of user credentials). TCP Port 20 and 21