如何将存储库从Unfuddle复制到本地SVN服务器？

I currently have a couple of SVN repositories hosted at Unfuddle and I'd like to have a local copy of the repositories as a backup. Ideally, it would be a "live" backup so my local repository would "ping" the remote repository, and if any changes were detected, the changes would be applied to my local repository.I currently have a couple of SVN repositories h