How Do I Enable the Password Login Mode for an ECS?
If you disable the password login mode when binding a key pair to an ECS, you can enable the password login mode again later when you need to.
Procedure
The following example describes how to log in to the ECS using PuTTY and enable the password login mode.
- Double-click PuTTY.EXE. The PuTTY Configuration page is displayed.
- Choose Connection > Data. Enter the image username in Auto-login username.
- If the public image of the CoreOS is used, the username of the image is core.
- For a non-CoreOS public image, the username of the image is root.
- Choose Connection > SSH > Auth. In Private key file for authentication, click Browse and select a private key file (in the .ppk format).
If the file is in the .pem format, convert it by referring to Converting the Private Key File in the .pem Format to the .ppk Format.
- Click Session and enter the EIP of the ECS under Host Name (or IP address).
Figure 1 Configuring the EIP
- Click Open to log in to the ECS.
- Run the following command to open the /etc/ssh/sshd_config file:
vi /etc/ssh/sshd_config
- Press i to enter the editing mode and enable the password login mode.
- For a non-SUSE operating system, change the value of PasswordAuthentication to yes.
PasswordAuthentication yes
- For a SUSE operating system, change the values of PasswordAuthentication and UsePAM to yes.
PasswordAuthentication yes UsePAM yes
- Non-SUSE OS
To disable password login, change the value of PasswordAuthentication to no. If the PasswordAuthentication parameter is not contained in the /etc/ssh/sshd_config file, add it and set it to no.
- SUSE OS
To disable password login, change the values of PasswordAuthentication and UsePAM to no. If the file does not contain the PasswordAuthentication and UsePAM parameters, add the parameters and set the values to no.
- For a non-SUSE operating system, change the value of PasswordAuthentication to yes.
- Press Esc to exit the editing mode.
- Enter :wq and press Enter to save and exit.
- Run the following command to restart the SSH service for the configuration to take effect:
KPS Related FAQs
- How Do I Create a Key Pair?
- What Are a Private Key Pair and an Account Key Pair?
- How Do I Handle an Import Failure of a Key Pair Created Using PuTTYgen?
- What Should I Do When I Fail to Import a Key Pair Using Internet Explorer 9?
- How Do I Log In to a Linux ECS with a Private Key?
- How Do I Use a Private Key to Obtain the Password to Log In to a Windows ECS?
- How Do I Handle the Failure in Binding a Key Pair?
- How Do I Handle the Failure in Replacing a Key Pair?
- How Do I Handle the Failure in Resetting a Key Pair?
- How Do I Handle the Failure in Unbinding a Key Pair?
- Do I Need to Restart Servers After Replacing Its Key Pair?
- How Do I Enable the Password Login Mode for an ECS?
- How Do I Handle the Failure in Logging In to ECS After Unbinding the Key Pair?
- What Should I Do If My Private Key Is Lost?
- How Do I Convert the Format of a Private Key File?
- Can I Change the Key Pair of a Server?
- Can a Key Pair Be Shared by Multiple Users?
- How Do I Obtain the Public or Private Key File of a Key Pair?
- What Can I Do If an Error Is Reported When an Account Key Is Created or Upgraded for the First Time?
- Will the Account Key Pair Quota Be Occupied After a Private Key Pair Is Upgraded to an Account Key Pair?
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