Comment Spam Storms
Update: Be sure to read the comments. There are lots of good
suggestions on solving this problem. Here`s what I
did to stop spam storms
About three times per day my server gets hit my a comment storm.
Someone with a botnet is trying to spam my blog and they`re going
about it stupidly. They don`t get any comments through because of a
simple
textual CAPTCHA that I installed in June.
The storm occurs because the spammers try to post over 100 comments
in the space of about 1 minute from five or six different IP
addresses. Naturally, the load average on my server shoots up to
unacceptable levels. I`m stymied about how to combat this. The IP
addresses are different every time. The browse tag is MSIE, so you
can`t filter on that. If you have ideas, let me know.
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