How to prevent server attacks

As the importance of Internet security becomes more and more important, servers, as carriers for storing and supporting data operation, are becoming more and more important in terms of maintenance and attack prevention. In particular, the impact of server attacks is very great. It will not only affect the weight of the website, but also seriously affect the normal operation of the business. It is an essential responsibility of every webmaster to do a good job in server security protection.

Let me share with you how to prevent four common attacks on the server? (Recommended learning: PHP Video Tutorial)

1. DDOS attack

DDOS attack is a common attack on servers. There are many attack methods. The most common one is to occupy service resources through service requests, resulting in users being unable to obtain Service response. The most effective way to prevent DDOS attacks is to choose a computer room with hard defense. Hardware firewalls can effectively prevent DDOS attacks and hacker attacks. Although hard defense can effectively prevent DDOS attacks, it is basically ineffective against CC attacks. CC attacks need to be defended through software firewalls.

2. Vulnerabilities

Vulnerabilities are also the main intrusion route for hackers. Hackers can attack servers through system vulnerabilities, program vulnerabilities, etc. Every system and program will have more or less vulnerabilities, or vulnerabilities inherent in the system itself, or vulnerabilities caused by misconfiguration by the system administrator. Webmaster friends should promptly apply new patches to the server system and upgrade it in a timely manner New version of the program.

3. Port Penetration

Ports are the main way for viruses and Trojans to invade. All ports may be exploited by hackers. The server performs the attack. I won’t go into details about how to attack here. I will mainly talk about how to prevent it. If you want to prevent hackers from attacking the server through ports, the most effective way is to close unnecessary ports and modify important ports. Let me tell you that if one less port is opened to the outside world, hackers will have one less intrusion route. Each open service means one more port is open to the outside world. When closing the port, some unnecessary services must also be closed. In addition, modifying some important ports can make it more difficult for hackers to scan, which can also effectively protect our servers.

4. Password cracking

Hackers may also crack the super administrator password through brute force cracking, thereby attacking the server. To prevent the super administrator's password from being violently cracked, the webmaster must change the default password of the super administrator after purchasing the server, and change the password to a complex combination of English and numbers. This can make it more difficult for hackers to crack the password. No matter how complex the password is, there is a risk of being cracked, so it is recommended that the super administrator's password be changed regularly.

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