Security Group

Introduction

By default, network access is turned off to a ECS instance. You can specify rules in a security group that allows access from an IP address range, port, or ECS security group.

You must specify port numbers (for TCP):

• SSH: 22
• HTTP: 80
• HTTPS: 443
• Ftp: 21, 20000-30000

AlibabaCloud Security Group Guide

TencentCloud Security Group Guide

HuaweiCloud Security Group Guide