[SSH] login without password

1. Environmental Science

• The server ：Ubuntu 18.04
• client ：Windows 10

2. Server side

because Ubuntu Default with SSH, Therefore, there is no need for too many configurations . For the mode, the server has no ~/.ssh Folder , perform ssh localhost command .

3. client

• install SSH
  It is recommended to use git for windows
• Configure password free login
  • open git bash
  • Generate key pair ssh-keygen -t rsa
  • Copy to server ssh-copy-id [email protected]
  • If the prompt file already exists , Then use the following operation
    • Log on to the remote server ssh [email protected]
    • open authorized_keys file vim ~/.ssh/authorized_keys
    • Toggle edit mode i
    • Switch to the end of the file , Press End key
    • Press enter to wrap
    • Open generated id_rsa.pub file , And copy the contents
    • Paste the vim Editorial office , And press Esc Return to command mode
    • Input :wq, Save and launch
• validate logon