search for: captchat

Hi all, I''m creating an email list managed by my CMS. I''m wondering if people had any thoughts about securing it? I''m just concerned that my application server might be overwhelmed by requests to add to the list by a spider, etc. Am I being overly concerned or is that a real possibility? I was thinking of adding an image with a random sequence of numbers or letters

Hello Rails, I have a problem. I would like to use captcha in one of my project. When I did try to install, this is what I got $ sudo gem install captcha Building native extensions. This could take a while... ERROR: Error installing captcha: ERROR: Failed to build gem native extension. /usr/bin/ruby1.8 extconf.rb extconf.rb:1:in `require'': no such file to load -- mkmf (LoadError)

Hi all I have the following code in my controller: if @comment.valid? captcha_url = "http://captchator.com/captcha/check_answer/#{captcha_code}/#{@comment.captcha}" result = open(captcha_url) unless result.read == "1" @comment.errors.add(:captcha, "Captcha wurde nicht korrekt eingegeben") raise "#{@comment.valid?}" end end A...