A firewall is a security system that monitors and filters traffic between computer networks or between a user’s device and the Internet. It allows you to block unauthorized access, malicious data, and potential threats, leaving only secure connections open.
The main purpose of a firewall is to protect servers, websites, and corporate networks from attacks, viruses, and unauthorized intrusion attempts. It is a key security element for any online project, ensuring stable and reliable operation of the digital infrastructure.
In the IT context, a firewall is used when configuring hosting, servers, corporate networks, and web applications. It helps administrators control access, protect customer data, and maintain the smooth operation of online services.
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