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 make out if the detected packet allowed in and the packet that is disguised are different. The stateful firewall comes with an active and defined firewall management by recognizing the traffic that is part of the established outbound connection.
Deep packet inspection firewall
The deep packet inspection firewall offers security against application level attacks by examining the data in the packets entering the network. The deep packet inspection firewall offers security to some extent but does not examine the whole packet, missing some kinds of attacks. This firewall functions similar to the intrusion prevention system.
The application-aware firewall is capable of adapting to the latest innovations of software and hardware by understanding any kind of network insecurity as per the present day’s changing needs. This firewall detects all kind of network traffic and provides granular traffic at the application level usage like Facebook, Twitter etc. in comparison to the traditional firewalls which need a separate appliance to perform the duty.
VRS Tech is an IT service provide in Dubai, UAE offering the network security firewall solutions for small and medium size or large organizations. Our expert team of engineers takes care of your network security with the effective firewall solutions in the market.