This tutorial is how to install suPHP on Ubuntu 11.04 11.10 or 12.04.
This tutorial is how to allow users to log in to Ubuntu server account with SSH or SFTP protocols and chroot them in their home folder.
This tutorial works on Ubuntu server 11.04, 11.10 and 12.04.
This tutorial will solve you the problem with GOPATH varialbe. If you're using Ubuntu 13.04 with Go 1.0.2 there is no need to set GOPATH, This is how I solve GOPATH problem on Ubuntu 13.10 and Go 1.1.2 from ubuntu repositories.
Edit: This tutorial works on Ubuntu 14.04 too.