How to automate SSH login with password?

Don’t use a password. Generate a passphrase-less SSH key and push it to your VM.

If you already have an SSH key, you can skip this step…
Just hit Enter for the key and both passphrases:

$ ssh-keygen -t rsa -b 2048
Generating public/private rsa key pair.
Enter file in which to save the key (/home/username/.ssh/id_rsa):
Enter passphrase (empty for no passphrase):
Enter same passphrase again:
Your identification has been saved in /home/username/.ssh/id_rsa.
Your public key has been saved in /home/username/.ssh/id_rsa.pub.

Copy your keys to the target server:

$ ssh-copy-id id@server
id@server's password:

Now try logging into the machine, with ssh 'id@server', and check-in:

.ssh/authorized_keys

Note: If you don’t have .ssh dir and authorized_keys file, you need to create it first

to make sure we haven’t added extra keys that you weren’t expecting.

Finally, check to log in…

$ ssh id@server

id@server:~$

You may also want to look into using ssh-agent if you want to try keeping your keys protected with a passphrase.

Related Posts:

  1. SSH use only my password, Ignore my ssh key, don’t prompt me for a passphrase
  2. Is my password compromised because I forgot to hit Enter after ssh username?
  3. Git: How to solve Permission denied (publickey) error when using Git?
  4. Putty: Getting Server refused our key Error
  5. Copying a local file from Windows to a remote server using scp
  6. ssh: The authenticity of host ‘hostname’ can’t be established
  7. ssh “permissions are too open” error
  8. Permission denied (publickey,keyboard-interactive)
  9. How to deal with “Pseudo-terminal will not be allocated because stdin is not a terminal.”
  10. What is actually in known_hosts?
  11. ‘heroku’ does not appear to be a git repository
  12. How to solve “sign_and_send_pubkey: signing failed: agent refused operation”?
  13. How to fix request failed on channel 0
  14. How to scp in Python?
  15. Forward X11 failed: Network error: Connection refused
  16. PuTTY PSCP error “Local to local copy not supported” when username contains a slash
  17. Starting ssh-agent on Windows 10 fails: “unable to start ssh-agent service, error :1058”
  18. Git error: “Host Key Verification Failed” when connecting to remote repository
  19. Convert PEM to PPK file format
  20. Copying files using rsync from remote server to local machine
  21. How to read iPhone files without jailbreaking?
  22. SSH to Vagrant box in Windows?
  23. How to use Sublime over SSH
  24. Use qdel to delete all my jobs at once, not one at a time
  25. Automating command/script execution using PuTTY
  26. Public and Private Keys are Incorrect for user
  27. ssh returns “Bad owner or permissions on ~/.ssh/config”
  28. How do I change my private key passphrase?
  29. Create a public SSH key from the private key?
  30. How do diff over ssh?
  31. “Add correct host key in known_hosts” / multiple ssh host keys per hostname?
  32. ssh-agent forwarding and sudo to another user
  33. how to disable SSH login with password for some users?
  34. Non interactive git clone (ssh fingerprint prompt) [duplicate]
  35. How to check sshd log?
  36. What does “Warning: untrusted X11 forwarding setup failed: xauth key data not generated” mean when ssh’ing with -X?
  37. What’s the difference between authorized_keys and authorized_keys2?
  38. How do I make ssh fail rather than prompt for a password if the public-key authentication fails?
  39. ssh-keygen does not create RSA private key
  40. OpenSSH: Difference between internal-sftp and sftp-server
  41. What significance does the user/host at the end of an SSH public key file hold?
  42. SSH Suddenly returning Invalid format
  43. How can I prevent the warning No xauth data; using fake authentication data for X11 forwarding?
  44. How to recover from “Too many Authentication Failures for user root”
  45. SFTP logging: is there a way?
  46. Why does my OpenSSH key fingerprint not match the AWS EC2 console keypair fingerprint?
  47. Login without running bash_profile or bashrc
  48. How do I do Multihop SCP transfers between machines?
  49. scp without known_hosts check
  50. How do I validate an RSA SSH public key file (id_rsa.pub)?
  51. How can I run arbitrarily complex command using sudo over ssh?
  52. Add comment to existing SSH public key
  53. ssh connection takes forever to initiate, stuck at “pledge: network”
  54. What is the benefit of not allocating a terminal in ssh?
  55. bad ownership or modes for chroot directory component
  56. Why Block Port 22 Outbound?
  57. Ansible stuck on gathering facts
  58. Is it possible to use rsync over sftp (without an ssh shell)?
  59. SSH Allow Password For One User, Rest Only Allow Public Keys [duplicate]
  60. ssh: Could not resolve hostname [hostname]: nodename nor servname provided, or not known
  61. wordpress redirect after password reset
  62. Check for correct username on custom login form
  63. multi page password protection
  64. Multisite/network–automatic self-registration, blog setup
  65. Best way to send users password?
  66. Hide password protected posts in admin
  67. how to redirect to a custom password retrieval page
  68. Password protected post or page – error message by wrong password?
  69. Forgot password not working
  70. Remove lost password form and URL
  71. Custom password generator for users
  72. password protect individual pages
  73. How can I find users that didn’t set a password?
  74. password protected post policy
  75. How can I allow password reset based on logins containing the @ character?
  76. Locked/Unlocked in title
  77. How to incorporate Documentation into wordpress?
  78. reset password link redirect to login page
  79. How can I automatically duplicate a site’s pages onto network site?
  80. WPTerm ssh connection not working [closed]
  81. Force user to change their password on the frontend at the first login and password policy
  82. Giving permission to anyone (non-users as well) with a password to edit a post, possible?
  83. Styling my own password protected page, how to deal with wrong password?
  84. Password minimum length in personal subscription [closed]
  85. Where is the email content for retrieve_password_message stored?
  86. Woocommerce password Reset
  87. WordPress not logged in locally with correct username and password
  88. No result update a custom field using wp_schedule_event
  89. Password Protect or IP to access under development WordPress site otherwise shown a placeholder page
  90. Making WordPress available while logged into another website
  91. How to show password fields on registration form w/o plugins
  92. Automatic linking terms
  93. WP users cant reset password
  94. How do I check if a post is password protected?
  95. Error when send reset password
  96. Reset Password – change from name and email address. It stucks at admin. Want to change it to info
  97. How to delete Password Protected posts cookies when a user logged out from the site
  98. How do I find users by password?
  99. ‘random_password’ filters not taking effect
  100. Change password reqts with NO plugin without breaking resetpass link?

Leave a Comment