The firewall creates a virtual wall around the company's network and acts as a security guard for all incoming traffic. It protects all of the company's internal assets and authorizes
Visitors are permitted to enter.

There may also be a semi-trusted area, called a demilitarized zone (DMZ). This is a controlled area for things that are not fully trusted, or where you allow visitors to access the network, but not to its full extent.

For more information about firewalls, visit https://www.eset.com/blog/.

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