Comments on: iTrip FM transceiver for 4th gen iPod review

By: David Kaspar

David Kaspar — Sun, 14 Nov 2004 10:13:47 +0000

Hey 00blogger, please use the Comment spam forum to discuss this further :-)

By: 00blogger

00blogger — Fri, 12 Nov 2004 23:43:29 +0000

> Check for open proxies (checkdnsrr() in php)
how does this work? are you sure you can recognize proxies this way.
i have seen another interesting experiment that used cookies to differentiate between users and robots. not bad, but there had been trouble with some browsers.

By: David Kaspar

David Kaspar — Wed, 10 Nov 2004 10:25:27 +0000

I have had to apply a combination of blog software (mt-bayesian) and Apache tweaks. See below for some options to fight spam comments.
Study your access log and try to find a pattern spammers are using. If you find one, edit your .htaccess to ban them commenting.
Almost all comment spam comes from open proxies. Check for open proxies (checkdnsrr() in php) before you allow a comment post.
Most comment spam is submitted by bots. Implement a decent CAPTCHA (http://dbvt.com/blog/archive/2004/10/29/441.aspx).
Connect your blog to a centralised IP black list. mt-blacklist does this for MT.

By: 00blogger

00blogger — Wed, 10 Nov 2004 00:06:07 +0000

thanks for your explanation. i have seen your comment entry im my weblog and gave you an answer. i set up my email adress today, but it does not work until now. perhaps it takes some time. as you may have seen there is some kind of spam in my relatively new weblog – referrer spam. and it will be only a question of time until the first comment spammer arrives. thus it would be interesting to find a good anti-spam solution. and perhaps a good weblog software that has anti-spam functionality build in by default 🙂

By: David Kaspar

David Kaspar — Tue, 09 Nov 2004 18:08:19 +0000

Thank you for pointing it out!
The problem was that I was trying to limit a RewriteCond with the standard directive. This only works for the mod_access commands and not for the mod_rewrite.
The correct way of doing it is to add a RewriteCond %{REQUEST_METHOD} instead.
Regarding the mt-bayesian, it has captured ALL spam comments thus saving my main page from embarrassing porn spam.
Unfortunately, it has quite a high false positive rate so I have to check for new comments often and release the good ones.

By: 00blogger

00blogger — Tue, 09 Nov 2004 14:47:57 +0000

something is wrong with your comment links:
Gone
The requested resource
/cgi-bin/mt/fdj3kdj3kdk.cgi
is no longer available on this server and there is no forwarding address. Please remove all references to this resource.
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btw, do you use mt-bayesian any longer. and what are your experiences?