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DNS Black Hole Response Page

Problem this snippet solves:

DNS Black Hole response Page

Comments on this Snippet
Comment made 23-Feb-2016 by Jay Shankar Singh 106
Hi, I've used the blackhole iRule https://devcentral.f5.com/articles/v111-dns-blackhole-with-irules, sometimes it blocked the genuine page as well, and i changed few option like instead of ends_with, used eq or contains, then i saw CPU usage is very high. If possible, can we modify the iRule that control the CPU usage and it work properly. Thanks.....Jay