Web Hosting Talk : Web Hosting Main Forums : Hosting Security and Technology : Captcha doesn't work, help!

[ivytony]

I got a VPS server which is mostly self-managed.

In order to prevent spams and flooding, I enabled the Captcha option in my commenting system, however, the validation image don't show up. I guess there might be some problem with the server. What do I need to install on the server to get Captcha to work properly? GD1/2 library? or install Captcha??

thanks

[twhiting9275]

Capcha isn't a "library" per se, there's no real definite "what's needed", it's all in the script you're using.

In most cases, you will need gd2, libgpeg, ttf, freetype, png support
This should cover almost all of the basics

[besty]

Originally Posted by ivytony

I enabled the Captcha option in my commenting system, however, the validation image don't show up.
thanks

It seems to be script issue. I believe your are outputting the page header before the image output, check with the programmer.