http://darkmalgjflxvxrxdyfyjo6w4xrni6rekh3dofiyunserojlgbwkteqd.onion/how_to_create_your_own_proxy_s.php
I had to deal with tons of issues, even though I have decent knowledge in network engineering, many of the issues I faced were very technical and/or required previous experience in the networking industry, I often found myself lost looking for solutions, and I made many, many expensive mistakes that cost me a lot, from dealing with bad providers to making terrible technical errors.