I'm looking at buying some private proxies. I'm looking for one that allows IP Authorization. Also, what I'm realizing now is that even when using proxies, say you have 10 youtube accounts and wish to use 1 proxy per account, if somehow you forget to set your IP correctly when switching account, you could potentially undo everything you've worked for. is there a software or a method to ensure there will be no problem? perhaps block all traffic on my firewall except proxy traffic? Even then, how can you make sure each accounts use the correct proxy?