D-Link DGS-3120-24TC Product Manual - Page 244
Enable Admin, Security > Access Authentication Control > Enable Admin
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xStack® DGS-3120 Series Managed Switch Web UI Reference Guide order preferable, and defined by the user for normal user authentication on the Switch, and may contain up to eight authentication techniques. When a user attempts to access the Switch, the Switch will select the first technique listed for authentication. If the first technique goes through its Authentication Server Hosts and no authentication is returned, the Switch will then go to the next technique listed in the server group for authentication, until the authentication has been verified or denied, or the list is exhausted. Users granted access to the Switch will be granted normal user privileges on the Switch. To gain access to administrator level privileges, the user must access the Enable Admin window and then enter a password, which was previously configured by the administrator of the Switch. NOTE: TACACS, XTACACS and TACACS+ are separate entities and are not compatible. The Switch and the server must be configured exactly the same, using the same protocol. (For example, if the Switch is set up for TACACS authentication, so must be the host server.) Enable Admin Users who have logged on to the Switch on the normal user level and wish to be promoted to the administrator level can use this window. After logging on to the Switch, users will have only user level privileges. To gain access to administrator level privileges, the user will open this window and will have to enter an authentication password. Possible authentication methods for this function include TACACS/XTACACS/TACACS+/RADIUS, user defined server groups, local enable (local account on the Switch), or no authentication (none). Because XTACACS and TACACS do not support the enable function, the user must create a special account on the server host, which has the username "enable", and a password configured by the administrator that will support the "enable" function. This function becomes inoperable when the authentication policy is disabled. To view this window, click Security > Access Authentication Control > Enable Admin as shown below: Figure 8-48 Enable Admin window When this window appears, click the Enable Admin button revealing a window for the user to enter authentication (password, username), as shown below. A successful entry will promote the user to Administrator level privileges on the Switch. Figure 8-49 Log-in Page 236