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Untangle Network Security by Abd El-Monem A. El-Bawab

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Understanding Untangle's Firewall application

Firewalls are used to separate your internal networks from the Internet and to limit access from outside the network to your internal resources. Untangle's Firewall application is a layer 7 firewall, which means it can block traffic based on the protocol, IP, port, and even the Active Directory users and groups.

Technical details

Untangle's Firewall application works in OSI layer 7 (application layer), which allows it to completely understand the traffic and hence filter that traffic based on various application layer conditions such as Client has Exceeded Quota and HTTP: Client User OS.

Untangle's Firewall application rules define the criteria of the traffic. When this criteria is matched with the rule, ...

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