Appendix A Common Services
Table 175 Commonly Used Services (continued)
NAME | PROTOCOL | PORT(S) | DESCRIPTION |
TELNET | TCP | 23 | Telnet is the login and terminal |
|
|
| emulation protocol common on the |
|
|
| Internet and in UNIX environments. It |
|
|
| operates over TCP/IP networks. Its |
|
|
| primary function is to allow users to |
|
|
| log into remote host systems. |
|
|
|
|
TFTP | UDP | 69 | Trivial File Transfer Protocol is an |
|
|
| Internet file transfer protocol similar |
|
|
| to FTP, but uses the UDP (User |
|
|
| Datagram Protocol) rather than TCP |
|
|
| (Transmission Control Protocol). |
|
|
|
|
VDOLIVE | TCP | 7000 | Another videoconferencing solution. |
|
|
|
|
476 |
| |
| ||
|
|
|