Unified threat management (UTM) and next generation firewall (NGFW)
In infect, the network firewall is one of the original network security tools and
remains one of the most important tools used by IT organizations of all sizes.
Then, one can observe that, the firewall has evolved rapidly in recent years in
response to the emergence of sophisticated and always changing threats.
Firewall
threat detection capabilities must be continually improved
in order to detect attackers that are more sophisticated and difficult to
detect, and that exploit a greater number of network entry points.