For those who understand computers, they all know that the website server is an important factor for the survival of the website. So what is a web server? In fact, Sunflower tells you remotely that the website server is a real machine, and the server is an important device that provides power for the operation of the website and enables the website to exchange data in the network.
In today's modern society, most companies have their own web servers to run their sites. However, when networking, due to loopholes, they are often attacked by hackers. Today, with the rapid development of Internet technology, hacker technology is also constantly developing. Even if your website protection work is good, some hackers can directly attack your source IP through black technology, making your website server unable to run normally. For enterprises, it will cause losses to customers.
Therefore, ensuring the normal operation of the server is the key issue for enterprises to ensure the operation of the website. Then how do we prevent loopholes and prevent the website server from being attacked? Sunflower will tell you.
First of all, we need to repair the website vulnerabilities, conduct a comprehensive detection and analysis of the customer website code, and conduct a comprehensive test on the upload function, as well as sql injection, XSS cross-site, remote code execution vulnerabilities, and find that the customer website code has an upload vulnerability, and immediately correct the It is repaired, limiting the type of uploaded files, deploying the uploaded directory without script execution permission, and making a more secure operation restriction on the customer's server login, not only using the root account password, but also requiring a certificate to log in server.
Account and password protection is the first line of defense of the server system. At present, most attacks on the server system on the Internet start from intercepting or guessing the password. If your password is set very simple, it is easy to be cracked by hackers. If a molecule enters the system, the previous defense measures are almost useless, so setting a complex password can make it difficult for criminals to crack and give the server enough time to enter the protection mode. It is also important to strictly limit the personnel with this level of access restrictions. Restricted logins should be set up and login passwords changed regularly.
For the normal operation of the server, it is very necessary to install a firewall. The firewall has a very good preventive effect on illegal access. The firewall can block hackers and filter some illegal link traffic, such as denial of service attacks DDOS attacks or spam senders. But installing a firewall does not mean that the server is safe and can run. After installing the firewall, you need to properly configure the firewall according to your own network environment to achieve the best protection effect.
Off-site data backup can be said to be the simplest and most effective defense method. We can back up the system once a week or a month, and store important files separately, so that when the system crashes, the loss can be minimized and the system can be restored to a normal state in time.
Filter and check the input parameters, and use blacklist and whitelist methods to avoid SQL injection attacks, because through SQL injection system vulnerabilities, various information in database queries can be obtained, such as the login of the background management system password etc. When the server operating system is installed, it will start some unnecessary services, timely delete the system that can clean up the resource occupation and some hidden dangers that affect the normal operation of the server, the enterprise should decide according to the situation, some servers that are not used are recommended to be closed directly , the servers that need to be used, it is safest to close unnecessary services and ports in time.
In today's era of network information, hacker attack methods are constantly being refurbished, creating some new loopholes, so it is impossible for us to block all hacker attacks, and no matter how high-quality the server is, it cannot guarantee the safety of the system, so all we can do is Continuously prevent, respond to every hacker attack with a defensive attitude, do a good job of data backup in a timely manner, analyze and evaluate every intrusion behavior, and optimize and improve the performance of its own server.