Login Overview (Linux)

Only a running ECS can be logged in.
The username for logging in to a Linux ECS is root.
If the login password is forgotten, reset the password by referring to Resetting the Password for Logging In to a Linux ECS. Resetting the password will interrupt the applications running on the ECS. Exercise caution when performing this operation.

You can choose from a variety of login modes based on your local OS type.

**Table 1** Linux ECS login modes
ECS OS	Local OS	Connection Method	Requirement
Linux	Windows	Use a remote login tool, such as PuTTY or Xshell. Password-authenticated: Logging In to a Linux ECS from a Local Windows Server Key-pair-authenticated: Logging In to a Linux ECS from a Local Windows Server	The target ECS has an EIP bound.
	Linux	Run commands. Password-authenticated: Logging In to a Linux ECS from a Local Linux Server Key-pair-authenticated: Logging In to a Linux ECS from a Local Linux Server
	macOS	Use the terminal included in the macOS. Logging In to a Linux ECS from a macOS Server
	Windows	Use the remote login function available on the management console. For details, see Logging In to a Linux ECS Using VNC.	No EIP is required.