Alibaba Cloud ECS SSH Login Guide

Detailed guide on how to connect to Alibaba Cloud ECS servers via web SSH. Includes security group configuration, key pair setup, and troubleshooting.

Alibaba Cloud Security Group Configuration:

  1. Log in to Alibaba Cloud Console
  2. Find your ECS instance
  3. Click "Security Groups" → "Configure Rules"
  4. Add inbound rule: Port 22, Source 0.0.0.0/0

Connect Using Key Pair:

  1. Create key pair in Alibaba Cloud Console
  2. Download private key file (.pem format)
  3. Upload private key file in WebSSH
  4. Login with username ecs-user (CentOS) or ubuntu (Ubuntu)

Connect Using Password:

  1. Reset instance password (in console)
  2. Restart instance to apply password
  3. Enter username and password in WebSSH
  4. Recommend switching to key pair authentication later

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