Git SSH authentication

by

The key part of the article “Git on the Server – Setting Up the Server” is:

you need to add some developer SSH public keys to the ~/.ssh/authorized_keys file for that user.
Let’s assume you’ve received a few keys by e-mail and saved them to temporary files. Again, the public keys look something like this:

$ cat /tmp/id_rsa.john.pub
ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAABAQCB007n/ww+ouN4gSLKssMxXnBOvf9LGt4L
ojG6rs6hPB09j9R/T17/x4lhJA0F3FR1rP6kYBRsWj2aThGw6HXLm9/5zytK6Ztg3RPKK+4k
Yjh6541NYsnEAZuXz0jTTyAUfrtU3Z5E003C4oxOj6H0rfIF1kKI9MAQLMdpGW1GYEIgS9Ez
Sdfd8AcCIicTDWbqLAcU4UpkaX8KyGlLwsNuuGztobF8m72ALC/nLF6JLtPofwFBlgc+myiv
O7TCUSBdLQlgMVOFq1I2uPWQOkOWQAHukEOmfjy2jctxSDBQ220ymjaNsHT4kgtZg2AYYgPq
dAv8JggJICUvax2T9va5 gsg-keypair

(Note: make sure the key is displayed on one single line)

You just append them to your authorized_keys file:

$ cat /tmp/id_rsa.john.pub >> ~/.ssh/authorized_keys

If you don’t have an authorized_keys file on your server, create it, but make sure to protect it correctly.

server$ mkdir ~/.ssh
server$ chmod 700 ~/.ssh
server$ cat ~/id_rsa.pub >> ~/.ssh/authorized_keys
server$ chmod 600 ~/.ssh/authorized_keys
server$ rm ~/id_rsa.pub

See “Creating SSH keys for Gerrit and Hudson” for a concrete example.

  • Make sure git is in the PATH used by your ssh daemon.
  • Make sure all parent directories of your ~/.ssh are not writable for the group (chmod 755 only).

More Related Contents:

  1. Git: How to solve Permission denied (publickey) error when using Git?
  2. How to specify the private SSH-key to use when executing shell command on Git?
  3. Is it possible to create a remote repo on GitHub from the CLI without opening browser?
  4. Specify an SSH key for git push for a given domain
  5. Permission denied (publickey) when deploying heroku code. fatal: The remote end hung up unexpectedly
  6. Start ssh-agent on login [closed]
  7. SSH Key – Still asking for password and passphrase
  8. Cannot push to Heroku because key fingerprint
  9. How can I run git push/pull commands with SSH verbose mode?
  10. Is there a way to “autosign” commits in Git with a GPG key?
  11. ssh: connect to host github.com port 22: Connection timed out
  12. Having Trouble Switching Github accounts on terminal
  13. Fix msysGit Portable $HOME location
  14. Git push results in fatal: protocol error: bad line length character: This
  15. git remote add with other SSH port
  16. Git clone with custom SSH using GIT_SSH error
  17. .ssh config with amazon ec2 and git
  18. Passing ssh options to git clone
  19. .ssh/config file for windows (git)
  20. git push via cron
  21. Clone works, remote push doesn’t. Remote repository over copssh
  22. Could not open a connection to your authentication agent
  23. Using a socks proxy with git for the http transport
  24. Git submodules and ssh access
  25. git push: permission denied (public key)
  26. Checkout Jenkins Pipeline Git SCM with credentials?
  27. GnuTLS recv error (-110): The TLS connection was non-properly terminated
  28. How to manage multiple ssh keys in the ~/.ssh directory
  29. BitBucket: Host key verification failed
  30. Jenkins: Failed to connect to repository

Leave a Comment