Teach you to complete the Forum automatic registration ads and other spam trouble

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I believe that every webmaster in the last 2 years by a variety of garbage information made painful, may overnight suddenly more than thousands of various random character combinations of accounts, one day the forum nearly thousands of 17828.html "> spam ads, make normal users are not willing to play."

Now, specifically for the Discuz Forum, the forum procedures for all kinds of verification mechanisms, verification code, bar verification questions, how long after registration is not allowed to post, after registration must use the verification question how many stickers do not need to verify the question and answer, set up registration must fill out custom user column customization, UC background set specific email domain name is not allowed to register. But most of it may be useless, and all can be breached. And I believe that a lot of people go to the official forum for a few days, the solution is nothing more than these, so I give you the first is the proposal: to engage in novice tasks, but this will greatly reduce the user experience, is very troublesome. Because you may lose a lot of user experience, unless your forum is very popular.

So I began to think about it, I thought that since the verification of questions and answers and set up registration must fill out custom user column customization has been broken, that must be the registration machine user is staring at your forum in modifying parameters, validation Quiz Even if you customize hundreds of, it's always limited, not to mention custom-required items, So you have to work on something completely random. But only the verification code is random, the verification code why can be broken? It must have been recognized by OCR, Discuz catches, its default set of GIF image font must be studied thoroughly, so do a set of not easy to be OCR verification code. Carefully see the Background verification code options, there is a "random TTF font", haha, this thing is not it? Why didn't you pay attention to it before? Open it and upload a few sets of English fonts in the Windows/fonts directory on your computer to the images/fonts/en directory (the more fonts the better And then turn the random tilt on, Haha, the world is completely clean, continuously tested for 5 days, and turned off the verification questions and other ancillary measures, there is no machine-issued ads.

Principle: Post machine for DZ's default authentication code font did OCR, but he did not have the ability to all the fonts to identify, so you upload the font more special better, the closer the handwriting effect is better, plus tilt, OCR is silly. Of course, the premise is that the user can recognize the naked eye. Let the machine, spam ads go to hell! If you feel the effect, give me the top.

Add: Although machine registration is effectively contained, but manually registered with the machine post needs to use the following method background-> authentication code settings-> enable authentication code-> to publish the topic and reply, check the following verification code posting restrictions: Fill in 1 So, even if manual registration, send the first post when also need to verify code , so that advertisers want to use a post machine post also need to manually send a paste, I think the general people do not have this patience. And this is not a big impact on the user experience, you can send a notice to the user only need to post the first time to fill in the verification code, and then no longer need to verify the code.

Well, you can go to my site http://www.fanxin8.com to see the actual demo and effect, if there is nothing to understand, you can comment on the following questions or to my site's Station Service management post inquiries, I will try to help.