What Are the Login Requirements for ECSs?

Linux

• Ensure that the ECS has an EIP bound (only required for SSH logins).
  SSH logins are available for Linux ECSs only. You can use a remote login tool to log in to your ECS. Ensure that the ECS has an EIP bound. For example, use PuTTY to log in to the ECS..

  • Check whether an ECS has an EIP bound.

    For details, see Assigning an EIP.

  • Check whether an EIP can be pinged.
    • If you use a public IP address, see What Should I Do If an EIP Cannot Be Pinged? for troubleshooting.
    • If you use a private IP address, see Why Does Communication Fail Between Two ECSs in the Same VPC or Packet Loss Occur When They Communicate?
  More information:

  • For a Linux ECS authenticated using a key pair:
    • For the first login, use an SSH key. For details, see Remotely Logging In to a Linux ECS (Using an SSH Key Pair).
    • For a non-first login, if you want to use the remote login function (VNC) provided by the management console, log in to the ECS using the SSH key and set the password.
  • For an ECS purchased using a key pair, if you fail to log in to the ECS using a private key file, the possible cause is that the password fails to be injected using Cloud-Init.