[wp-hackers] Trackback Spam Fix

[drDave]

I haven't looked in details yet, but I believe this has already been 
tried (not on WP, I think it was for an MT plugin) and ruled out: many 
big blogging services will have non-matching IPs for that (LiveJournal 
in particular).

On Apr 6, 2005, at 5:00 PM, Elliott Bäck wrote:

> As far as I know, the trackback form doesn't verify that the trackback 
> URL resolves to the host IP sending the trackback, which in my opinion 
> and experience, is the cause of most or all of the trackback spam 
> currently getting posted.  I know that in theory trackback can be send 
> by a server of behalf of someone else, but I know of very few 
> implementations that work that way.
>
> -- 
> Thanks,
> Elliott C. Bäck
>
> 607-229-0623
> http://elliottback.com
>
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>
>
-- 
Dave / デイヴ
drdave at unknowngenius.com