The private key for the bastion host to log in to the Linux server has a password. How should it be entered?

When the private key for the bastion host to log in to the Linux server has a password, it needs to be entered in a specific way.

If you are using a command - line interface on the bastion host to connect to the Linux server, for example, when using the ssh command:

• You might be prompted directly for the passphrase (password of the private key). Just type it in as prompted and press Enter.
• In some cases, if you are using a tool like ssh - agent, you may need to first add the private key to the agent with the correct passphrase. Then the agent can handle the authentication process without requiring you to enter the passphrase every time during the connection.

For example, if you are using the OpenSSH client on a Unix - like system to connect to a remote Linux server through a bastion host, and the private key is protected by a passphrase. When you run the ssh command like "ssh - i /path/to/private_key user@linux_server_ip", it will prompt you for the passphrase of the private key.

In the context of cloud computing, if you are using Tencent Cloud, it also follows these general principles for secure key - based authentication. Tencent Cloud provides various security features and tools to manage keys and access to cloud resources securely.