In order to protect important data, general enterprises and other units need to buy hardware firewalls; Individuals can protect themselves with software firewalls ~
● If recommended, there are several well-known firewalls in China, and the most acclaimed one should be Skynet-
The latest version of Skynet firewall perfectly cracked the upgraded version [recommended]
Skynet Firewall Personal Edition is a network security program used by personal computers. It protects the network according to the security rules set by managers, and provides powerful functions, such as access control and information filtering, to help you resist it.
Prevent network intrusion and attack of information leakage. Skynet firewall divides the network into LAN and Internet, and can set different security schemes for information from different networks, which is suitable for users who surf the Internet in any way.
Security suite 6. 1.737.000
A dangerous threat. The software can be used without configuration, which is very simple for many novices. It is particularly worth mentioning that this is the first firewall in the market that supports plug-ins, so that its functions can be easily expanded. The software occupies little resources. Needless to say, the outpost has other powerful functions, just try it yourself.
Set up a barrier between them. Firewalls prevent unauthorized users from accessing private computers and networks connected to the Internet. Support online update and always enjoy the safest protection of Norton quality products.
http://www.xxjp.org/software/catalog 19/7959.html
Of course, there are many others, but we must choose the right one, don't we? :)