Build a git repo on a Linux host based on SSH protocol according to 4.4 Git on the Server.
sudo adduser git
sudo passwd git
su git
cd
mkdir .ssh
chmod 700 .ssh
touch .ssh/authorized_keys && chmod 600 .ssh/authorized_keys
vi .ssh/authorized_keys # add user's pub key, modify the comment
mkdir -p repos/avabuilder.git
cd repos/avabuilder.git/
git init --bare
So the git url is git@192.168.12.233:~/repos/avabuilder.git.
Now clone this repo on the client host:
git clone git@192.168.12.233:~/repos/avabuilder.git, push to this repo:
git remote add 233 git@192.168.12.233:~/repos/avabuilder.git
git push -u 233 master
The comment of a SSH pub-key is the 3rd part of the key string.
As an example, for the following pub-key, the comment part is chad@myhost:
ssh-rsa AAAAB3Nza...AH8baX chad@myhost
See Add comment to existing SSH public key for details.
The problem of the method is all the users with authorized key can access all the repos.