Zachary

A firewall is a computer security technology that aids in the prevention of unauthorized access to a computer system. While a firewall can block external attacks, it cannot stop an attack that originates from within the system.

A firewall can, however, help protect the system from unauthorized access by stopping traffic from certain sources.

A firewall can be configured to block IP addresses. IP addresses are a series of numbers that identify a computer on the internet.

A firewall can be configured to block all IP addresses, or it can block specific IP addresses. Blocking specific IP addresses can help protect the system from unauthorized access by specific users.