Cloning this repository:

git clone git://gitorious.org/jsftp-server/jsftp-server.git jsftp-server
cd jsftp-server

Add this repository as a remote to an existing local repository:

git remote add jsftp-server git://gitorious.org/jsftp-server/jsftp-server.git
git fetch jsftp-server
git checkout -b my-local-tracking-branch jsftp-server/master_or_other_branch