The rsync git-lfs custom transfer agent allows transferring the data through rsync, for example using SSH authentication.

Natively, git-lfs allows transferring data through HTTPS only. This means to use git-lfs with your standard git repository, you need a separate git-lfs server for storing the large files. Unfortunately there is no official server implementation.

Luckily git-lfs has a Custom Transfer Adapter which allows using Custom Transfer Agents for transferring the data!

To use it, add to your .lfsconfig config file something like:

$ git config --replace-all lfs.concurrenttransfers 8
$ git config --replace-all lfs.standalonetransferagent rsync
$ git config --replace-all lfs.customtransfer.rsync.path git-lfs-rsync-agent
$ git config --replace-all lfs.customtransfer.rsync.concurrent true
$ git config --replace-all lfs.customtransfer.rsync.args SERVER:PATH

When pushing a branch to the origin repo, git-lfs tries to contact the inexistent git-lfs server and dies because it can't. If this happens, make sure the locks verify feature is disabled:

$ git config --replace-all lfs.locksverify false