Once the installation of Avast Internet Security is complete, Avast will ask you to select the type of network to which you are connected. This feature is similar to that included in Windows 7.
Here are the choices :
- Public : public wifi, for example.
By default, you will see that Avast sometimes configures programs automatically and transparently. This is the case for our Apache web server as you can see on the image.
To allow or not a program manually, you must first create a category in which the add. To do this, click "New Group" and enter a name. In our case : Web Server.
Then right click on the category and click on "New Rule for an application".
Select the process that should be allowed on the network.
You can then adjust the allowed connections through the orange cursor.
If you want to make more precise settings, you can click on "Packet rules".
So you can set permissions for protocols, ports and IP addresses you want.
To allow or block a port, you must go through the Expert settings firewall Avast. To do this, go to : Firewall -> Firewall Settings -> Settings Expert.
In the "Policies" tab click the "Packet rules" button (shown below).
You find the same window for the button of the same name in the programs to authorize, except that it applies to the entire program, processes, ...
In the case of our web server, we will add this line :
Name : Web Server
Action : Allow
Protocol : TCP / UDP
Direction : Inbound / Outbound
Address : not defined (so no restriction on what point of view)
Local port 80 (the port on which the server is listening)
Remote Port : not defined (meaning anyone)
Verify that the Enabled check box is checked before you click OK, otherwise the row will have no effect.
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