Firewall is a security system to manage and monitor incoming and outgoing traffic based on predefined security rules. A firewall prevents unwanted access to or from a network or server.

So, complex is a tool that can be used to increase the security of a computer connected to a network, such as a LAN or the Internet. It is also an essential part of a comprehensive security framework for the network you are using. Firewalls are able to guarantee security by activating granular control over the type of function. It will also perform system processes that have access to network resources.

Firewall Function

Installation on the server is indeed very important to prevent unwanted things such as data loss, the function firewall on the server is: first to prevent brute force logins (a method of hacking secret keys by randomly trying secret words) such as cPanel logins and e-mails, by blocking ( square) The IP that attempted to brute force the login. Second, perform IP bends which perform port sweeps. and finally perform IP blocking when there are hack attempts such as SQL Injection using Module Security (ModSec) on php.

For Business Needs

In addition to security, this can impact access constraints from customer connections to sites on the server. Some cases that often occur include errors in secret email words in customer mail settings such as viewpoints, which have an impact on IP blocking due to repeated login errors from mail customers. Second, port setting errors, for example port errors in email settings so that they are considered output ports (connecting to ports that are not open) which results in IP blocking. and finally IP blocking for violating ModSec rules. ModSec has many rules as a security measure, but in some cases the content used by customers violates one of the ModSec rules, causing the customer’s IP to be blocked.

If you are interested in other news about firewall products you can find news on NetData.