[wp-hackers] Trackback Spam Fix

[Sebastian Herp]

Quick hack (well not so quick, but at least it's tested and works): 
http://www.sebbi.de/files/trackbackfilter.phps

Does this solve your problem?

Sebbi

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.
>