List of TCP and UDP port numbers. ABC incorporated wants to implement a TCP/IP network for its only site. It has 180 employees and two buildings and requires Internet access for an e-mail server,. Well-Known TCP. These are some typically known TCP/IP ports: FTP: 21 Telnet: 23 SMTP: 25 HTTP: 80 POP3: 110 NNTP: 119 Here is a list: http://www.iana.org/assignments/port-numbers In many cases,. Primary TCP. 539.838.721.8.. a TCP/IP network for its only site. List of TCP On a godaddy dns when a sub domain points to an ip does it got to the first open port on the router. List of Well-Known TCP Port Numbers.I was recently looking at my IP address', the subnet the gateway and the ports. What are the ports and gateway? isn't port 80 standard? I am not sure what the usefulness of ports are.. I have had THOUSANDS of attacks on that same port (as reported by my hardware firewall) And on no other port i got about 6 pages worth of attacks
