To learn all about the firewall settings, you need to understand its goals and objectives. Let's try to determine the concepts of “firewall” and “firewall”, if they have differences and similarities. We will deal with network access and server configuration.
What is it?
Before you take a quick look at the firewall, you need to know what a firewall is. This is a conditional program that relates to a computer network. It works with the control of network traffic and its filtering. For this, there is a certain set of rules in the firmware.
It is the firewall that is this firewall. From the German language the word is translated as "fire wall". Often users cannot distinguish between a firewall and a firewall. This is not surprising, since both the first and second are firewalls. The only difference is that the firewall is a German term, and the firewall is English.
Windows version
Starting with the version of Windows XP, the developer introduced a firewall into the operating system. So the firewall settings became available. This does not mean that there was no such program element before. An earlier version of Internet Connection Firewall was released. But the main advantage of the new product was the availability of control over the access of programs to the network.
Danger
The old firewall entered the computer system, but was disabled by default due to compatibility errors. The settings of this firewall were available in the network configurations, which means that they became difficult to reach for some users. Since 2003, there have been a number of attacks by computer worms. This was due to a system vulnerability.
In 2004, attacks continued, resulting in lightning-fast infections of the system. To fix this, it was necessary to modify the firewall. So became the popular "Windows Firewall."
New
A security log was built into the new firewall, which collected data on IP addresses and connections on home, office, and Internet networks. This service has hardly been updated since its release. Therefore, all settings of any parameters are suitable both for old operating systems and for new versions.
Now you can configure the firewall in the "Security Center", because this firewall is part of it.
Enable / disable
To make firewall access settings, you need to understand how to enable or disable it. Of course, disabling it is not recommended, as this will call into question the security of the system. But sometimes a shutdown is necessary in order to activate the antivirus.
Most of these programs have a built-in firewall. To avoid compatibility conflicts, the built-in firewall is turned off. If the downloaded antivirus does not have a firewall, then the version from Windows can be left.
To start working with this software and hardware element of the Network, you need to open it. As usual, there are several ways. You can simply enter its name in the search bar of the system. You will have a list of several options. Better to choose "Windows Firewall."
Another version of the approach to this service is a transition through the “Control Panel”. To do this, click "Start", in the right column find "Control Panel", a window will open. Look at the upper right corner, where there is a line “View” and select “Large icons”. You will see a list in which you will find a branded firewall.
A new window will open where you can configure the firewall. In the left column will be the line "Disable or enable the firewall." There is a choice for home network and public. It’s easy to turn off app block notifications right there. You must check the box so that the program immediately notifies you of a malicious utility.
Access blocking
Some problems with access to the Network are related specifically to the firewall. Perhaps you did not understand the work of the antivirus program and denied access to the network. You can restore it in the firewall settings. Again, in the left column, go to the line "allow the launch of a program or component through the firewall."
A new window will open before you. It will contain a list of programs that have blocked or opened access to the Network. You just need to check the boxes where necessary. For example, here you can find a browser that does not go to sites and give him permission to do this.
If you need to allow access to the Network in the firewall settings for a program that is not on the list, this is easy. It is enough under the plate in which there are utilities to find the button “Allow another program”. Then an additional list of applications will appear, from which you can add another browser or software that needs access to the Web.
Remember that the more such allowed programs are in the firewall, the less secure your work becomes. Ports that open are no longer controlled by the system and may skip malicious utilities.
Extended
To have more options for setting access, you can use additional parameters. In this line, you can adjust the network profiles. Three options are used by default:
- A domain profile is an option for PCs connected to a domain.
- Private - needed as a "bridge" to the private network, it can be either a home connection or a working one.
- General - needed to connect to the public network.
You can immediately work with the rules for different types of connections. You may need to configure the server. The firewall easily works with incoming or outgoing connections. To do this, in the additional parameters, you need to select the desired item and click on it, selecting "Create a rule".
A special window will open in which there will be several steps. In each, everything is described in detail. Rules are divided into several types. If the rule for the program is used, then it is possible to configure the access of certain software to the Network. If for a port, then permission or prohibition occurs for it, a number of ports or a protocol.
You can also select a predefined or custom rule. Further, the setup is more than understandable. Indicate the path to the program, choose open or closed access. Also configure permission or prohibition for a certain type of network. Give a name to your profile and the setup is done.
If you need more fine-tuning, for example, prohibiting all software from connecting to the designated IP or port, or creating a list of white addresses, select custom rules.