| Port No | 49 |
| Service Name | tacacs / Login Host Protocol |
| RFC Doc | 1492 |
| Protocol | TCP |
| Description | Terminal Access Controller Access Control System TACACS is an authentication, authorization protocol that is widely used for access control on a TCP/IP network. The protocol was originally designed to be a terminal access protocol for ARPAN |
| Reference Link | An Access Control Protocol, Sometimes Called TACACS: RFC1492 TACACS user identification Telnet option: RFC927 |
| Attack |
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