SLC™ 8000 Advanced Console Manager User Guide 217
12: User Authentication
Users who attempt to log in to the SLC advanced console manager by means of Telnet, SSH, the
console port, or one of the device ports are granted access by one or more authentication
methods.
The User Authentication page provides a submenu of methods (Local Users, NIS, LDAP,
RADIUS, Kerberos, and TACACS+) for authenticating users attempting to log in. Use this page to
assign the order in which the SLC unit will use the methods. By default, local user authentication is
enabled and is the first method the SLC 8000 advanced console manager uses to authenticate
users. If desired, you can disable local user authentication or assign it a lower precedence.
Note: Regardless of whether local user authentication is enabled, the local user
sysadmin account is always available for login.
Authentication can occur using all methods, in the order of precedence, until a successful
authentication is obtained, or using only the first authentication method that responds (in the event
that a server is down).
If you have the same user name defined in multiple authentication methods, the result is unknown.
Example:
There is an LDAP user "joe" and an NIS user "joe" and the order of authentication methods is:
1. Local Users
2. LDAP
3. NIS
User "joe" tries to log in. Because there is an LDAP user "joe," the SLC unit tries to authenticate
him against his LDAP password first. If he fails to log in, then the SLC 8000 advanced console
manager may (or may not) try to authenticate him against his NIS "joe" user password.
To enable, disable, and set the precedence of authentication methods:
1. From the main menu, select User Authentication. The following page displays:
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