All the comments about how restrictive and troublesome the Great Firewall is, yet probably 50% or more of the malicious/unwanted traffic I see coming into my ne

All the comments about how restrictive and troublesome the Great Firewall is, yet probably 50% or more of the malicious/unwanted traffic I see coming into my networks (and those of my customers) every day is coming from China. If you have a web service you want to make available to .cn, perhaps you should try running your web servers on port 25/TCP instead. That seems to be pretty much wide open through the GFW.