User guide

3-6 Encore Multi-port DSU/CSU User GuideÑJuly, 1997

Access Rights

The DSU/CSU supports superuser or normal user access rights. The superuser has the

priority (Table 3-1).

Assigning User Passwords

It is important that you specify unique superuser and normal user passwords.

Two access methods to the DSU/CSU(s) are available (using a terminal connected to

the Comm Port or a Telnet connection from a remote terminal). The security of your

network depends on proper authorization:

¥ A Òno passwordsÓ situation gives any user logging on superuser access rights. If

this user sets one password, the DSU/CSU uses the same password for both the

user and superuser, with that password known only to that user. The result is one

unknown user gaining exclusive control of that DSU/CSU.

¥ If you set only one password, the DSU/CSU uses the same password for both the

user and superuser. As superuser, this user can gain exclusive control of the

terminal interface.

Table 3-1 Access Rights

Superuser Nornal User

Log off a user already logged on the

DSU/CSU Be logged off by a superuser

Change both passwords Log on only when no one is logged on

Clear both passwords

NOTE: Set both passwords.