rahlquist writes: "Recently one of my sites has been under a slow and steady spambot attack. They were slowly inserting trackback spam so as not to arouse suspicion. When you insert 119,000 trackbacks over a week though, sooner or later, it will be noticed. The situation is under control now, and each IP that tries to submit a trackback now gets blocked through iptables (40 blocked ip's in the last 30 mins), short of contacting each server owner, how can I get this stopped?"
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