> # About Validating a TACACS+ Server

> As of Cisco SAN-OS Release 3.0(1), you can periodically validate a TACACS+ server. The switch sends a test authentication to the server using the test username and test password that you configure. If the server does not respond to the test authentication, then the server is considered nonresponding.

> Note We recommend that you do not configure the test user on your TACACS+ server for security reasons.

> You can configure this option to test the server periodically, or you can run a one-time only test.

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