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I want to specify a lot of options for SSH when Git uses it. We're using ISPConfig, which sets the owner of the web users' home directory to root, which causes a lot of trouble, including that I can't set any SSH configuration. Setting the $HOME variable doesn't work either. I have to craft my git commands to use a different SSH config file. How is that possible?

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If you can set environment variables, I would first try something like

export GIT_SSH_COMMAND="ssh -F /path/to/config"

However this will only work with Git 2.3+. Assuming you're on an older version, you'll need something slightly more involved:

echo "ssh -F /path/to/config-file" > /some/path/git-ssh-wrapper
chmod +x /some/path/git-ssh-wrapper
export GIT_SSH="/some/path/git-ssh-wrapper"

This is because (from git man page):

To pass options to the program that you want to list in GIT_SSH you will need to wrap the program and options into a shell script, then set GIT_SSH to refer to the shell script

  • Does that mean the /some/path/git-ssh-wrapper will need chmod +x? – Paul Mar 19 '15 at 21:24
  • Good point - yes it will. Edited. – Nye Mar 23 '15 at 10:53

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