Notes

TACACS+ Authentication

Configuring TACACS+ on the Switch

General System Requirements

To use TACACS+ authentication, you need the following:

A TACACS+ server application installed and configured on one or more servers or management stations in your network. (There are several TACACS+ software packages available.)

A switch configured for TACACS+ authentication, with access to one or more TACACS+ servers.

The effectiveness of TACACS+ security depends on correctly using your TACACS+ server application. For this reason, ProCurve recommends that you thoroughly test all TACACS+ configurations used in your network.

TACACS-aware ProCurve switches include the capability of configuring multiple backup TACACS+ servers. ProCurve recommends that you use a TACACS+ server application that supports a redundant backup installation. This allows you to configure the switch to use a backup TACACS+ server if it loses access to the first-choice TACACS+ server.

TACACS+ does not affect web browser interface access. Refer to “Controlling Web Browser Interface Access When Using TACACS+ Authentication” on page 4-24.

General Authentication Setup Procedure

It is important to test the TACACS+ service before fully implementing it. Depending on the process and parameter settings you use to set up and test TACACS+ authentication in your network, you could accidentally lock all users, including yourself, out of access to a switch. While recovery is simple, it may pose an inconvenience that can be avoided.To prevent an unintentional lockout on a switch, use a procedure that configures and tests TACACS+ protection for one access type (for example, Telnet access), while keeping the

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