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4.8 Access Control
Access Control allows you to assign different access right for different users. First, you
have to divide users into different groups. Users are 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 have to assign the access right of each group. 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
100-199
Allow (25,53,80,110)
Can browse(80), receive(110)
and send(25) email only
Group 2
50-99 Block (21,119)
Cannot read net news(119) and
FTP(21) only
Group 3
1-9,20 Block () Fully access (block nothing)