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| Appendix D Common Services |
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| Table 68 Commonly Used Services (continued) | |||
| NAME | PROTOCOL | PORT(S) | DESCRIPTION |
| TACACS | UDP | 49 | Login Host Protocol used for (Terminal Access Controller |
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| Access Control System). |
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| TELNET | TCP | 23 | Telnet is the login and terminal emulation protocol |
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| common on the Internet and in UNIX environments. It |
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| operates over TCP/IP networks. Its primary function is to |
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| allow users to log into remote host systems. |
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| TFTP | UDP | 69 | Trivial File Transfer Protocol is an Internet file transfer |
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| protocol similar to FTP, but uses the UDP (User Datagram |
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| Protocol) rather than TCP (Transmission Control Protocol). |
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| VDOLIVE | TCP | 7000 | Another videoconferencing solution. |
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| 179 |
LTE6100 User’s Guide | |
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