Replacing a Key Pair

Prerequisites

• The ECS whose key pair is to be replaced uses the public image provided by Huawei Cloud.
• To replace the key pair, you can replace the public key of the user by modifying the /root/.ssh/authorized_keys file on the server. Ensure that the file is not modified before replacing the key pair. Otherwise, replacing the public key will fail.
• The ECS must be in the Running state.

Procedure

1. Log in to the management console.
2. Click in the upper left corner of the management console and select a region or project.
3. Click on the left. Choose Security & Compliance > Data Encryption Workshop.
4. In the navigation pane on the left, click Key Pair Service.
5. Click the ECS List tab, locate the target ECS in the list, and click Replace in the Operation column. The key pair replacement dialog box is displayed, as shown in Figure 1.
   Figure 1 Replacing a key pair
   

6. Select a new key pair from the drop-down list box of New Key Pair.
7. Click Select File to upload the private key (in .pem format) of the original key pair or copy the private key content to the text box.
   

   • The private key to be uploaded or copied to the text box must be in the .pem format. If it is in the .ppk format, convert it by referring to How Do I Convert the Format of a Private Key File?.

8. The default port number is 22 and can be modified.
   

   Before using user-defined port, ensure that:

   • The key pair can be connected to the ECS using the port. For details about how to modify the security group configuration of an ECS, see Configuring Security Group Rules.
   • Modify the default port of the ECS and ensure that the port is enabled. For details, see Enhancing Security for SSH Logins to Linux ECSs.

9. Read and select I have read and agree to the Key Pair Service Disclaimer.
10. Click OK. The key pair will be replaced in about one minute.