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4.8 Access Control
Access Control allows you to assign the access right for each user. First, you must divide
users into different groups, as identified by their IP addresses. You can assign the members
of Group 1, 2 and 3. The others are all members of Default Group. Second, you must assign
the access right of each group. The access right can allow or block users to access specified
TCP and UDP ports. For example:
Group
Members
Access Right
Comments
Default
-
Allow ()
No access right (allow nothing)
Group 1
50-99
Allow (25,53,110)
Can browse(80), receive(110)
and send(25) email only
Group 2
100-199 Block (21,119)
Cannot read net news(119) and
FTP(21) only
Group 3
1-9,20
Block ()
Fully access (block nothing)