Kinds of network security firewall for securing networks from intrusions
Firewall is a network device that acts like a barrier between the incoming and outgoing traffic across the network. The firewall network security blocks the computer attacks or prevents further spreading of it. The network can be at safety from the attacks trying to intrude into the network and attempting to gain access to the valuable data present in the system. A network security firewall is essential for the network to be safe. Packet filtering firewall The packet filtering firewall blocks the traffic following a set of firewall rules, based on the IP protocol, IP address or port number. This firewall allows web-based traffic into the network and so intrusion prevention system is essential to deal with the web traffic. The intrusion prevention system does the job of differentiating the authentic from unauthentic web traffic and blocks or allows it in. Among the packet filtering firewalls, the stateful firewalls are more powerful since the stateless firewall cannot
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