võrgutulemüür
Võrgutulemüür, commonly known as a firewall, is a network security device or software that monitors and controls incoming and outgoing network traffic based on predetermined security rules. It acts as a barrier between a trusted internal network and an untrusted external network, such as the internet. The primary function of a firewall is to prevent unauthorized access to or from a private network.
Firewalls can be implemented in various forms. Hardware firewalls are physical devices placed at the network
The effectiveness of a firewall lies in its ability to enforce security policies. It can block malicious