It allows traffic to go through in case some device requested it on the network. What is NAT firewall?Ī NAT or Network Address Translation firewall protects private networks right in routers. Later, it became understandable that all those billions of people on earth might use multiple devices. Before, it was believed that 4.3 billion of them would be enough for everyone who can be connected to the Internet. Network Address Translation or NAT would be a solution to the problems caused by the IPv4 protocol. It means that their reliability is also different. Naturally, different firewalls use different methods of sorting the information out. There are different firewalls, and they can be divided into three categories: Therefore, your firewall protects you from being compromised by it. You know how much malicious software there is all over the web. If it doesn’t, such information is discarded. It sorts all information out and makes sure that the incoming information matches the outcoming requests. A firewall is situated between your local network and a large one. When browsing websites, watching movies, or just sending emails, you send specific requests for information to various servers of the websites. Just assume that your PC is a director having a secretary that sorts the PC’s mail and delivers only the mail the director wants to receive. Here is the easiest explanation: A firewall is a sort of a secretary for your computer. Now, you will be even more surprised- most likely, you have this tool on your router.īefore you go deep into it, you should realize what a firewall, in fact, is and whether you need it or not. It might be invisible to you, but it’s working hard to keep your network secure and check your traffic. NAT firewall or the Network Address Translation is one of such tools. In fact, there are tons of tools that you cannot see that check your traffic and make sure your network is secure enough. Getting results from your search engine seems as easy as a piece of cake however, it isn’t really so.
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