VNC without access to set up port forwarding

I just bought the VNC Viewer app for my iPhone 4 and got it to work over 3G and wifi with my macbook pro connected to my home network. I know very little about networking but I knew enough to be able to set up port forwarding to my ip on my router at home. The problem is that I am a student in college right now, so my computer will be hooked up to the schools network when winter break is over. I have no access to set anything up on the network at school, so how will I get this to work? I made a host name at no-ip (does that allow me to connect to my computer even when my ip changes?), and I read something about being able to set up an ssh tunnel to make it work...maybe? I now have no idea what to do and the other forums I've read about this topic are using language that I am not familiar with. I need some network education! Again, the problem is setting up my MacBook Pro to allow a VNC connection on a network I have no control over. Thanks!
Message was edited by: drummer914

My suggestion is using TeamViewer.com (they have both a Mac and an iPhone app) and it is free for personal use.
Team viewer has the ability to work across routers and corporate firewalls.
The problem with ssh is that it also needs port forwarding the same as VNC. You could have your Mac at college ssh to a Mac at home, setting up a reverse tunnel (ssh -R). You then VNC to the Mac at home, and instead of attaching to a VNC server at home, you connect to the ssh tunnel listening for connections. You would have to always have the tunnel established from your college Mac to a home Mac (or it could be a Linux box at home). And at home you would also need to port forward port 22 so your college Mac and ssh into your home Mac.
It might be an interesting exercise, but I think you would be happier using TeamViewer.com

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