Appendix A Common Services
Table 173 Commonly Used Services (continued)
NAME | PROTOCOL | PORT(S) | DESCRIPTION |
TELNET | TCP | 23 | Telnet is the login and terminal |
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| emulation protocol common on the |
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| Internet and in UNIX environments. It |
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| operates over TCP/IP networks. Its |
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| primary function is to allow users to |
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| log into remote host systems. |
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TFTP | UDP | 69 | Trivial File Transfer Protocol is an |
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| Internet file transfer protocol similar |
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| to FTP, but uses the UDP (User |
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| Datagram Protocol) rather than TCP |
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| (Transmission Control Protocol). |
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VDOLIVE | TCP | 7000 | Another videoconferencing solution. |
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468 |
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