# Creating a Security Group

#### Scenarios

To improve ECS access security, you can create security groups, define security group rules, and add ECSs in a VPC to different security groups. We recommend that you allocate ECSs that have different Internet access policies to different security groups.

#### Procedure

1. Log in to the management console.

2. Click in the upper left corner and select the desired region and project.
3. On the console homepage, under Network, click Virtual Private Cloud.
4. In the navigation pane on the left, choose Access Control > Security Groups.
5. On the Security Groups page, click Create Security Group.
6. In the Create Security Group area, set the parameters as prompted. Table 1 lists the parameters to be configured.
   Figure 1 Create Security Group

   Table 1 Parameter description
   Parameter | Description | Example Value
   --- | --- | ---

   Name

   The security group name. This parameter is mandatory.

   The security group name can contain a maximum of 64 characters, which may consist of letters, digits, underscores (_), hyphens (-), and periods (.). The name cannot contain spaces.

   NOTE:

   You can change the security group name after a security group is created. It is recommended that you give each security group a different name.

   sg-318b

   Description | Supplementary information about the security group. This parameter is optional. The security group description can contain a maximum of 255 characters and cannot contain angle brackets (< or >). | N/A

7. Click OK.

Parent topic: Security Group