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Protect your forum from spam with NuCaptcha 01/02/12

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Over the last month I’ve had a new challenge, that is to stop the spamming of a phpBB forum. After some research, I came across NuCaptcha, a flash script that prevents all spammers from registering on the forum since December 2011! Here’s a little preview of NuCaptcha:

As you can see, NuCaptcha offers both free and paid services. For the time being, we have chosen the free option in order to test the product. One of the biggest advantages of the product is that the free option gives you the right to 25,000 valid captcha per month! We’re not talking about trials, but about valid captcha, therefore only the authentic registrations will be counted in your monthly limit! As for the design, there are a few choices available to you: animated or fixed background. However, you must upgrade to pro package to be able to edit/remove the background image. The basic pro package costs $199 per month, which is unfortunately not given, allowing up to 100,000 valid captcha a month. I therefore suggest you take advantage of the free option as long as possible. Another disadvantage of NuCaptcha is that it is only available in English.

Here’s how to install it on phpBB 3.0.9 / 3.0.8

1. Download the files at: phpBB NuCaptcha Plugin
2. Extract the script through your favourite zip/rar software.
3. Connect to your host through FTP, you must then find the installation folder of phpBB 3.0.9 / 3.0.8
4. Transfer the files to the root of the phpBB installation
5. If you’re using another theme than the 2 default phpBB themes, you will need to transfer the file found in styles/prosilver/template/captcha_nucaptcha.html to the folder of your theme.

You can then activate it in the anti-spam tab of your phpBB admin section, so you must be registered on their site in order to find the API key. Then you can edit the design among those available directly on their website. If you have any questions about NuCaptcha and its installation, do not hesitate to leave a comment!

About Frederick Mercier

Fred Mercier is a Webhosting, CMS, E-Commerce Specialist who turned to blogging, as a part time hobby, to motivate himself to write about the problems he resolves each day while serving his clients.

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