I don't think there is a way to remotely log into an S1. I have Teamviewer set up on a PC Connected to my network and I log into that to check the status on my S1's. It's free for residential use.
You want ssh:
http://www.linuxmanpages.com/man1/ssh.1.phpOnce set up you can log into your miners remotely, provided you have their IP addresses. You can also create a tunnel across an ssh connection that will allow you to bring up the webui if that's more your speed.