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applications will occur. Therefore we recommend that you use only one firewall on
your computer and deactivate all others, thus eliminating the risk of possible conflict
and any problems related to this.
7.4.1. Firewall Principles
In AVG, the
Firewall
component controls all traffic on every network port of your
computer. Based on the defined rules, the
Firewall
evaluates applications that are
either running on your computer (and want to connect to the Internet/local network),
or applications that approach your computer from outside trying to connect to your
PC. For each of these applications the
Firewall
then either allows or forbids the
communication on the network ports. By default, if the application is unknown (i.e. has
no defined
Firewall
rules), the
Firewall
will ask you if you wish to allow or block the
communication attempt.
Note:
AVG Firewall is not intended for server platforms!
What AVG Firewall can do:
·
Allow or block communication attempts of known
applications
automatically, or
ask you for confirmation
·
Use complete
profiles
with predefined rules, according to your needs
·
Switch profiles
automatically when connecting to various networks, or using
various network adapters
7.4.2. Firewall Profiles
The
Firewall
allows you to define specific security rules based on whether your
computer is located in a domain, or it is a standalone computer, or even a notebook.
Each of these options requires a different level of protection, and the levels are
covered by the respective profiles. In short, a
Firewall
profile is a specific
configuration of
Firewall
component, and you can use a number of such predefined
configurations.
Available profiles
·
Allow all
- a
Firewall
system profile that has been pre-set by the
manufacturer and is always present. When this profile is activated, all network
communication is allowed and no safety policy rules are applied, as if the
Firewall
protection was switched off
(i.e. all applications are allowed but
packets are still being checked - to completely disable any filtering you need
to disable Firewall)
. This system profile cannot be duplicated, deleted, and its
settings cannot be modified.
·
Block all
- a
Firewall
system profile that has been pre-set by the
manufacturer and is always present. When this profile is activated, all network
communication is blocked, and the computer is neither accessible from outer
