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What I want to share with you in this article is whether there is a firewall in the Aliyun virtual host. The editor thinks it is very practical, so I share it with you. I hope you can get something after reading this article. Let's take a look at it with the editor.

In the product page of Ali Cloud Virtual Host, you don't see the configuration and function introduction of the firewall. The security layer provides cloud-based ddos intrusion prevention and website security services.

And the cloud virtual host is with a website firewall, can prevent cross-station, anti-injection, anti-tamper, anti-hanging horse, anti-hacker attacks, so that the user's website is solid.

General specific functions of firewalls in servers

First, filtering attacks

By identifying illegal or virus-attached services to reduce the risk of attacks on the server, for example, prohibiting insecure protocols from passing through the network, and many attackers prefer to attack the internal network through such fragile protocols. Through the filtering in this way, only the selected protocol can be entered, which can make the network environment more secure.

II. Monitoring and auditing

The firewall can record all visitors who enter the website space through it. When an abnormal situation occurs, it can give a warning in time and provide detailed information about the attack on the network, which can provide great help in resisting the attack. Secondly, the firewall provides statistical data on network usage, which can be used to analyze network requirements and threats and take precautions.

III. Protection of internal information

The internal network will contain a lot of information, such as all users' user names, real names, contact information, etc., and some details may reveal this information. Firewalls can hide information about Finger in the internal network, and even if attacked, it is difficult for an attacker to obtain the details of this information.

IV. Packet protection

Data packets usually carry some information, which is sometimes one of the tools used by hackers to invade through illegal information such as replacement and addition. The firewall can read these information to determine whether the packet is trusted and whether the network sending the packet is illegal, while for the packet with illegal content, it can be filtered to prevent external attack users from accessing the internal network. to protect the internal network.

The above is whether the Aliyun virtual host has a firewall, and the editor believes that there are some knowledge points that we may see or use in our daily work. I hope you can learn more from this article. For more details, please follow the industry information channel.

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