Login Overview

Only a running ECS can be logged in.
The username for logging in to a Windows ECS is Administrator.
If the login password is forgotten, reset the password on the ECS console.
To reset a password, locate the row containing the target ECS, and choose More > Reset Password in the Operation column. For details, see Resetting the Password for Logging In to an ECS on the Management Console.
If an ECS uses key pair authentication, use the password obtaining function available on the management console to decrypt the private key used during ECS creation to obtain a password.
Certain G series of ECSs do not support remote login provided by the cloud platform. If you need to remotely log in to the ECSs, install the VNC server on them. For details, see GPU-accelerated ECSs. You are suggested to log in to the ECSs using MSTSC.
If you log in to a GPU-accelerated ECS using MSTSC, GPU acceleration will fail. This is because MSTSC replaces the WDDM GPU driver with a non-accelerated remote desktop display driver. In such a case, you must log in to the ECS using other methods, such as VNC. If the remote login function available on the management console fails to meet your service requirements, you must install a suitable remote login tool, such as TightVNC, on the ECS.
To download TightVNC, log in at https://www.tightvnc.com/download.php.

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

**Table 1** Windows login modes
ECS OS	Local OS	Connection Method	Requirement
Windows	Windows	Use MSTSC. Click Start on the local computer. In the Search programs and files text box, enter mstsc to open the Remote Desktop Connection dialog box. For details, see Remotely Logging In to a Windows ECS (Using MSTSC).	The target ECS has had an EIP bound. (If you log in to an ECS through an intranet, for example, through VPN or Direct Connect, the ECS does not require an EIP.)
	Linux	Install a remote connection tool, for example, rdesktop. For details, see Remotely Logging In to a Windows ECS (from a Linux Computer).
	macOS	Install a remote connection tool, for example, Microsoft Remote Desktop on the macOS. For details, see Remotely Logging In to a Windows ECS (from a macOS Server).
	Mobile terminal	Install a remote connection tool, for example, Microsoft Remote Desktop. For details, see Remotely Logging In to a Windows ECS (from a Mobile Terminal).
	Windows	Through the management console. For details, see Remotely Logging In to a Windows ECS (Using VNC).	No EIP is required.