A large number of servers around the world are always threatened by large -scale DDOS attacks. Faced with such a severe situation, we usually choose to use high defense servers to achieve defense. As we all know, DDOS attacks are the most common ways to attack today. It mainly generates a lot of malicious flow through meat chickens and other methods, occupying the resources of the target network or server, leading to the interruption of server services. So, how does the United States achieve defense in the case of the height of the server?

　　1. How does the traditional US high defense server achieve defense?

　　1. enough number of servers

　　In order to deal with external attacks, some large companies need enough servers to support. Because the hacker only needs to find a vulnerability to easily attack, when we find a vulnerability, we may have been severely attacked. What I want to say here is that hackers will consume their resources when attacking. A sufficient number of servers may not be attacked, and hackers have no extra energy and resources.

　　2. Close unnecessary services and ports.

　　This refers to filtering fake IP on the router and only open the service port. This is a common practice for high security servers. For example, the WWW server only opens 80, close all other ports, or formulate a blocking strategy on the firewall.

　　3. Configure the firewall on the main node of the high -security server.

　　Installing the firewall can effectively resist DDOS attacks and other attacks. When you discover attacks, you can directed it to some unimature victims, which can protect the real host from attacking. The victims can also be systems such as Linux, UNIX, and there are very few vulnerabilities, which has a good natural defense for attacks.

　　Second, the advantages of high security servers

　　1. Enhance the overall security of the network.

　　Cyber security is one aspect of ensuring user experience. Many viruses and hackers now attack the entire network through other computers, so the website mainly chooses a highly safe server. At present, most networks are managed by domain. As long as the virus successfully invades one of the computers, there is a problem with the security of the entire network. We should fundamentally consider the security of the network.

　　2. Regular backup data

　　The tape is used to preserve precious data, but there is huge security vulnerabilities in data backup. Therefore, the backup medium must also be effectively protected when backup. When choosing a high -security server tenant, you must choose formal. Through regular backup, data can be restored in time after the server is attacked.

　　3. Strengthen the security level of the local file format of the server.

　　High security servers are safer than ordinary servers. Strengthening the security level of the local file format of the server can provide users with a safer environment.