Shulou(Shulou.com)06/02 Report--

In this issue, Xiaobian will bring you about the reasons for the abnormal network connection of Cloud Virtual Machine. The article is rich in content and analyzes and narrates it from a professional perspective. After reading this article, I hope you can gain something.

Network exception occurs when connecting to Cloud Virtual Machine. If the local network is excluded, it may be a firewall problem or a security group configuration problem.

About Firewall Settings

1. Open Control Panel and click Windows Firewall. The main page of the firewall lists the basic state of the fire temple. Click "enable or disable windows firewall" to configure firewall options.

2. Then configure exception options, the so-called exception refers to the firewall does not block the ports used by these excepted applications or the ports added by themselves, and directly allows them to be used for known safe applications, such as killing software, corporate applications, and windows-related components.

3. Click "Add Port" under the exception menu to add the port you need to release. For example, tomcat defaults to port 8080 when running. You can fill in tomcat and port number 8080, and the system will release port 8080.

4. Click on the Advanced menu, where you can configure which network card communication data is protected by the firewall. Some intranets, such as network cards connected between servers, are basically safe, and opening them may affect the information interaction between them. At this time, you need to remove the check mark.

Network administrators and IT staff should have a formal system to review and remove third-party access rights and credentials they have issued, generally at least once a year to focus on checking which third-party services have access to your network or VPN, removing information about servers that are no longer active, and ensuring that information about each active cloud host is available.

For example, if you set up a temporary account that gives visitors special access, but forget to delete it at the end of the visit, you leave a security risk in the system. Always use the principle of least privilege whenever possible. The same applies to firewall policies.

The above is what is the reason for the abnormal network connection of Cloud Virtual Machine shared by Xiaobian for everyone. If you happen to have similar doubts, you may wish to refer to the above analysis for understanding. If you want to know more about it, please pay attention to the industry information channel.

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