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This article will explain in detail about the need to buy firewalls and log analysis for virtual hosts. The content of the article is of high quality, so the editor shares it for you as a reference. I hope you will have a certain understanding of the relevant knowledge after reading this article.

The firewall and log analysis of virtual hosts are very important security features, but many service providers generally configure them in the host without additional purchase.

What can firewalls do?

1. Packet filtering. According to the definition of firewall, any way that can effectively prevent illegal connections to the network is regarded as a firewall.

2. Block external attacks. If the information sent by the user is not allowed by the firewall setting, the firewall will block it immediately to prevent it from entering the server behind the firewall.

3. Record the attack. In fact, the firewall can record all the attacks if necessary, but for the sake of efficiency, the general task of recording the attack is left to IDS.

The role of log analysis

The first thing to do in any intrusion is to step on the point, test, and the function of the point is to know that there is a living system, usually through scanning, dns query, and so on. From the log, we can see the login time, process number, login failure behavior, login account, source ip, login port, protocol and other information, we can see that these information is very rich. It is very important for the normal operation and maintenance of the virtual host.

About the virtual host need to buy firewalls and log analysis to share here, I hope the above content can be of some help to you, can learn more knowledge. If you think the article is good, you can share it for more people to see.

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