Mining behind a proxy and restrictive firewall (only http ports allowed) - possible?
After searching and searching I found these possiblites.


Use bitminter Java client in Version 1.1.2 http://bitminter.com/client/1.1.2/bitminter.jnlp (current version doesn't work)
Make your own miner which supports proxy
Use a tool like Proxifier (I have not tested it personally, because it is commercial)