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Old 09-04-2007, 11:31 AM
scrtadmr8 scrtadmr8 is offline
New Pligger
 
Join Date: Aug 2007
Posts: 1
Hi,
Register/search at this site, I failed the captcha test each time and need to try a couple of times. Spanner software are getting better and sites adapt to combat, while they do human loggers cannot read the captcha. I notice, pligg use distorted text and that seem to work today( yahoo and others use distorted/stretch style text).

Was going to inquire on spam technology and tx for the botxxx link. From the example of cracked captcha, I notice the software can beat text with overlying lines. From my evaluation of pligg software, it lines over text.

So, site today requires some sort of distorted text. Select good text to distort. For eg, i or 1 or capital I text should not be used. Be generous to make it easy for user to decipher. It just a matter of time before distorted-stretched text be beaten ( Have the spam software so good ?? Asking if this site login captcha need be like that - so challenging??) and it is a good idea to have other fail safe techniques - timing, hidden text but spam technology can adapt very easily.

Relying on checking email mx ( old web application devolpment mention limitation with that technique). So, just do simple email syntax check. Accept the registration, send email and asking them to click on that link back to your site). It is the best check that I can for valid email. If user has valid email, they pass thru yahoo captcha. Yahoo, google would use what is relevant to make it difficult for spam software. It conceivable that an email provider to have a weak captcha.

That is my two cents worth. Have anyone came across PHP software to do the last paragraph. I am sure it exist in GNU/GPL for that technique been around - craig list. Appreciate any help to find that library. Even what terminology phrase to use in my search (login, register, email sent to that address, user open their email, and click on that link to renter that login site). Follow the big sites for they have the money to research what to use.

I am newbie developer in training and looking for must have php library. In all sites, certain modules must be used ( login, captcha, email verifaction- the good one mention above, form validation, greeting card email module). Any help appreciated for I do try to look but a matter of where. Sometimes, it take more time to reinvent when PHP is all about reusing and improving.

With regard to CSS, what article or site mention technique. For I like to learn more. Question and answer is a good technique but need be done very properly like very properly done captcha or email validator. Photo technique (football) requires a lot of images for spammer can download your limited picture and cracked your method. Note - you need change some pixel each time to make it difficult to deduce your libray images). Good luck and tx in assisting my search.

Personally, I like the email validator (the human interaction one) and Q&A. Need create library of common questions. What would u buy at a toy shop? Meat, grocery, lego, paint, plywood. What color is the sky? Black, blue, green, brown. Any help to create this library of questions? Now u can understand why it is simpler to use captcha - text generated, filtered, and impose over image - too bad we need stretch the text and make it difficult for human to use. Oh, several questions and answers.

To do a search in this forum, does the captcha need to be so difficult for registered users at the beginning (search one, 2, or 3)?
Would like to hear from this site regarding on how to make it easier for humans to do a search.

Last edited by scrtadmr8; 09-04-2007 at 12:23 PM.
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