There are several different types of firewalls, but the most common are network firewalls, application firewalls, and host-based firewalls.
- Network firewalls are typically deployed at the perimeter of a network and protect all devices behind them.
- Application firewalls are deployed inline and can inspect and block traffic based on specific application-level criteria.
- Host-based firewalls are installed on individual hosts and can protect those hosts from malicious traffic.
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