An additional problem with packet filtering firewalls which are not stateful is that the firewall can't tell the difference between a legitimate return packet and a packet which pretends to be from an established connection, which means your firewall management system configuration will have to allow both kinds of packets into the network. In this situation, you need to have intrusion prevention, in addition to firewall security, in order to differentiate between good web traffic (simple web requests from people browsing your website) and bad web traffic (people attacking your website).Ī packet filtering firewall has no way to tell the difference. Under this firewall management program, all web traffic will be allowed, including web-based attacks. This type of firewall has a list of firewall security rules which can block traffic based on IP protocol, IP address and/or port number.

It is analogous to a physical firewall in the sense that firewall security attempts to block the spread of computer attacks. In the world of computer firewall protection, a firewall refers to a network device which blocks certain kinds of network traffic, forming a barrier between a trusted and an untrusted network. The word firewall originally referred literally to a wall, which was constructed to halt the spread of a fire. But what exactly is firewall security, and what does firewall management entail?

As cybercrime continues to increase (see the latest cybercrime report) and threaten businesses across the world, you probably know that your organization needs firewall security in fact, you may even already have a firewall management program in place.

Firewall in cyber security