Security groups act as virtual firewalls for ECM instances. Each ECM instance must be associated with at least one security group. If you haven't created a security group when creating an ECM instance, Tencent Cloud provides two templates (Open all ports and Open ports 22, 80, 443, and 3389 and ICMP protocol) for quick security group creation. For more information, see Security Group.
This document describes how to create a security group in the ECM console.
Directions
1. Log in to the ECM console and select Edge Network > Security Group on the left sidebar.
2. On the Security Group management page, click Create.
3. In the Create ECM Security Group pop-up window, configure the options as shown below:
Template: select an appropriate template based on the service to be deployed in the ECM instance in the security group, which simplifies the security group rule configuration, as shown below:
Template
Description
Scenario
Open all ports
All ports are open. May present security issues.
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Open ports 22, 80, 443, and 3389 and ICMP protocol
Ports 22, 80, and 443 and 3389, and the ICMP protocol are open. All ports are open internally.
Suitable for instances with web services.
Custom
You can create a security group and then add custom rules. For detailed directions, see Adding Security Group Rule.
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Name: name of the security group.
Notes: a short description of the security group.
Advanced Settings: you can add tags for the security group after expanding.
Display Template Rules: you can view the existing rules in the security group after expanding.
