Quote:
Originally Posted by PamWinterReturns
I can’t fathom a billion blocked IPs. I’m blocking whole hosts as in *@*.*.secureserver.net. 800 daily attempts from different countries to different IPs. I sent an address explaining why and tried to tell them these are open accounts. Third email so I think no one cares!
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As I said above, you need to start blocking at a less abstract level: individual IPs, or IP ranges. Firewalling at the packet level is super fast.
If you block by hostname through (say) Apache, it must do a DNS lookup in order to check against htaccess... for EVERY load. Do you really want your page to take 5 seconds to load because the user's ISP hasn't properly configured their reverse DNS?
BTW: a billion blocked IPs? That's like half the internet.