
5 Security
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Example 2
Callback for normal users only, callback and pass-through for administrative users—one host
type.
Modems Security Type Connected to Modem Group
1A–1D Inbound security Nothing NormalInbound
1E–3F Outbound security The host computer NormalOutbound
4A–4E Outbound security The host computer AdminOutbound
4F Inbound security The host computer AdminInbound
Normal users are members of the NormalInbound and NormalOutbound modem groups.
Administrative users are members of the NormalInbound, NormalOutbound and AdminOutbound
groups. This makes sure that even if the all of the normal inbound security modems are in use, an
administrative user can still get in on the AdminOutbound group. The senior administrator is a
member of the AdminInbound group and is a pass-through user, since that modem will only be
used by him or her. All other users are fixed callback.
Example 3
Callback only—three host types (host selection enabled).
Modems Security Type Connected to Modem Group
1A–1B Inbound security Nothing Inbound
1D–1E Outbound security UNIX host UNIX
1F–2D Outbound security AS/400 host AS/400
2E–2F Inbound security DEC VAX VAX
Users are all members of the Inbound modem group. They are also members of the modem groups
that correspond to the hosts that they are to have access to. When users who are members of more
than one outbound modem group call in, they are presented with a prompt that asks them which
host they want to call them back.
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