Copyright (c) Fire4 Systems Inc, 2019. All rights reserved
15
The importance of allowing access only to specific websites, not to the
whole Internet
The
Public
rule will add access to the whole Internet for any group to which it is assigned. The
Blocked
rule can be added to the group to prevent access to specific domains (websites) on the
Internet.
The
Public
rule presents a potential hazard for network users as stated previously. When a user
accidentally clicks on a link in a malicious email and installs a trojan virus, the virus will attempt
to call the hacker to give the hacker access to the computer and use it as a tool to hack the
network servers.
Wherever possible, a group should have the
Allowed
rule assigned, or a rule created for access
to specific websites that are required by the user. This action will prevent a trojan virus
communicating with the hacker after accidental installation.
The two default groups, unknown devices and known devices
Click on the Management tab, device groups, to see the list of device groups. Initially only two
default groups will appear, Unknown devices and Known devices. This is shown on the following
figure.
A new group has already been added to the configuration above (
testgroup
) by clicking on the
box + Add a new group.
Click to add a new
device group
