Quick Start Guide for Security Group

Typical Configuration Scenarios

Public Network Ping Cloud Server Instance
To use the ping program to test the communication status of the cloud server instance, you need to add the following inbound rules to the security group associated with the instance:

Source

Protocol Port

Policy

0.0.0.0/0

ICMP

Allow

Note: Make sure you have enabled the appropriate outbound rules.

Cloud Server Instance Used as The Web Server

If the instance you create is used as a web server, you need to install the webserver program on the instance and add the following inbound rules to the rules associated with the instance:

Note: You need to start the webserver program before checking if the port is set to 80.

Make sure you have enabled the appropriate outbound rules.

Source

Protocol port

Policy

0.0.0.0/0

TCP:80

Allow

Upload or Download Files Using FTP

If you need to use FTP software to upload or download files to a cloud server instance in the active access mode, you need to give the instance a security group, please add the following inbound rules:

Note: You need to install the FTP server program on the instance before checking if port 20/21 is working correctly.

Make sure you have enabled the appropriate outbound rules.

Source

Protocol port

Policy

0.0.0.0/0

TCP:21

Allow

0.0.0.0/0

TCP:1024-65535

Allow

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Quick Start Guide for Security Group