The function of server firewall and how to set it

The role of the server firewall and how to set, I believe that many inexperienced people do not know what to do, so this paper summarizes the causes of the problem and solutions, through this article I hope you can solve this problem.

In our daily use of servers, firewalls are often used, but many friends do not understand the role of firewalls and how to set them. Now let's take a look at the setting method and function of the firewall.

Why should the computer room use the firewall

The main purpose of Internet firewall is to prevent hackers from sabotaging three ways:

(1) intrusion: the most common form of sabotage, after the invasion, you can properly use the computer. Intruders hope that they can become legitimate users and use computers at will.

(2) denial of service: the easiest way without directly destroying the system, hackers can paralyze a computer by sending out a flood of garbage packets, making it impossible for the system to provide services normally.

(3) Information theft: if a hacker steals the user's account number and password, he can access the computer and steal the necessary information.

Second, the setting of the firewall

The following will take adding cloud helper free server management panel probe listening port 6688 as an example to show you the specific steps of adding system firewall rules:

1. Open the Windows system firewall and check whether the corresponding port rule already exists

two。 If it does not exist, create a new port rule

3. Select the protocol type TCP/UDP and set the port number

4. Select allow connection

5. Set rule configuration name and other information

6. Click finish

After reading the above, have you mastered the function of the server firewall and how to set it up? If you want to learn more skills or want to know more about it, you are welcome to follow the industry information channel, thank you for reading!