Dell POWEREDGE M1000E - Manual (Page 468)

468 Configuring a Captive Portal
Figure 17-13. Add Local User
From the Local User page, click Show All to view summary information
about the local users configured in the local database.
Figure 17-14. Captive Portal Local User Summary
To delete a configured user from the database, select the Remove check box
associated with the user and click Apply.