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This article will explain in detail how to add security group rules to CVM. The content of the article is of high quality, so the editor will share it with you for reference. I hope you will have some understanding of the relevant knowledge after reading this article.

Security groups are used to implement the access control of elastic CVMs within and between security groups, and to enhance the security protection of elastic CVMs. After the security group is created, users can define various access rules in the security group. When an elastic CVM joins the security group, it is protected by these access rules.

Security group rules support inbound and outbound directions. For the inbound direction rule, the source address is restricted to a security group or network segment. If the source address is a security group, only the security group under the same VPC can be selected. For the outbound rule, the destination address is restricted to the security group or network segment. If the destination address is a security group, only the security group under the same VPC can be selected.

Elastic CVMs in security groups under different VPC are not interconnected by default. You need to bind an elastic public network IP and set corresponding rules before you can communicate.

1. Log in to your CVM console, go to server management, and click Security Group in the navigation pane.

two。 Click the New button, enter the name of the security group, select template creation or custom creation, and click OK after confirming the inbound and outbound rules.

3. Click the join instance button on the right side of the security group list, and check the CVM to be associated with it to complete the operation of associating the security group with the CVM.

4. Or you can go to the CVM list page to view or modify the security groups bound to a CVM. On the CVM list page, select the CVM for which you want to adjust the security group, click more-configure Security Group, and select Security Group binding.

This is the end of the sharing of security group rules for CVM. I hope the above content can be helpful to you and learn more. If you think the article is good, you can share it for more people to see.

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