Git SSH authentication

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).

You need to paste your public key inside ~/.ssh/authorized_keys. Create the file if it doesn't exist.