Typical applications of security group rules (SSH, RDP, ping, FTP)

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Typical applications of security group rules

This article introduces the typical applications of security group rules. Documentation applies to both classic and VPC network instances. For specific operations on adding security group rules, please refer to the document: Adding Security Group Rules.

Typical applications listed in this article include:

SSH remote connection to Linux instance

RDP remote connection to Windows instance

Ping ECS ​​instance over public network

ECS instance as Web server

Use FTP to upload or download files

SSH remote connection to Linux instance

Created After installing a Linux ECS instance, in order to remotely connect to the ECS instance via SSH, you need to add the following security group rules:

RDP Remote Connection to Windows Instance

After creating a Windows ECS instance, in order to remotely connect to the ECS instance via RDP, you need to add the following security group rules:

Ping ECS ​​instance on public network

After creating the ECS instance, in order to use the ping program to test the communication status between ECS instances, you need to add the following security group rules:

ECS instance as Web server

If the instance you create is used as a Web server, you need to install the Web server on the instance server program and add the following security group rules.

Description

You need to start the web server program first, and then check whether port 80 is working properly. For specific operations, please refer to the document: Check whether TCP port 80 is working properly.

If you cannot access your instance through http://public IP address, please refer to Check whether TCP port 80 is working properly.

Use FTP to upload or download files

If you need to use FTP software to upload or download files to an ECS instance, you need to add the following security group rules:

Description

You need to install the FTP server program on the instance first, and then check whether the 20/21 port is working properly. To install the FTP server program, you can refer to the document: Installation, configuration and use of FTP service under cloud server ECS.

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