User authentication Terminal Access Controller Access-Control System Plus (TACACS+)
Digi Connect IT® 16/48 User Guide
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Terminal Access Controller Access-Control System Plus (TACACS+)
Your Connect IT 16/48 device supports Terminal Access Controller Access-Control System Plus
(TACACS+), a networking protocol that provides centralized authentication and authorization
management for users who connect to the device. With TACACS+ support, the Connect IT 16/48 device
acts as a TACACS+ client, which sends user credentials and connection parameters to a TACACS+
server over TCP. The TACACS+ server then authenticates the TACACS+ client requests and sends back
a response message to the device.
When you are using TACACS+ authentication, you can have both local users and TACACS+ users able to
log in to the device. To use TACACS+ authentication, you must set up a TACACS+ server that is
accessible by the Connect IT 16/48 device prior to configuration. The process of setting up a TACACS+
server varies by the server environment.
This section contains the following topics:
TACACS+ user configuration 519
TACACS+ server failover and fallback to local authentication 520
Configure your Connect IT 16/48 device to use a TACACS+ server 520
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