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Craig
May 22, 2006, 11:12am Report to Moderator Report to Moderator

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You use capatula here, and when you opened up to guest posting, the bots started spamming again.  That is why I am confused.  I haven't looked into any of it, but I am sure what ever way you come up with will work


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Justin
May 22, 2006, 11:23am Report to Moderator Report to Moderator

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He's talking about image verification for all guests posting messages.


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kidmuto
May 22, 2006, 11:42am Report to Moderator Report to Moderator
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what is capatula?  i cant seem to find it anywhere on the net.  they are quite annoying but for guest posts its not a big deal.  on my site - only registered users are allowed, except for the tech support board (in case people are having issues logging in or registering).  a number system would be ideal for that, if i limited to that board only.  and it doesnt require bandwidth or have any outside dependancies...
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Justin
May 22, 2006, 11:48am Report to Moderator Report to Moderator

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kidmuto
May 22, 2006, 11:48am Report to Moderator Report to Moderator
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lol! i'll look it up!
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Justin
May 22, 2006, 11:55am Report to Moderator Report to Moderator

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I gave you a link to Wikipedia.  


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kidmuto
May 22, 2006, 12:25pm Report to Moderator Report to Moderator
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i know - i meant i'll look up the wiki   
seems simple enough to write a mod.  there is a perl captcha module.  at work now but will play with it later this week....
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Martin
May 22, 2006, 12:53pm Report to Moderator Report to Moderator

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I have an earlier mod that creates a random 6 digit verification number also.



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kidmuto
May 22, 2006, 1:27pm Report to Moderator Report to Moderator
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do you have a link to it?  is it a captcha system?
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Martin
May 22, 2006, 1:51pm Report to Moderator Report to Moderator

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Not a captcha system, it generates a random number and then compares it to the input from the user. I wrote it for registration authentication on 9.6

Give me a while and I'll convert to 9.71b for posting authentication then install/test it. I'll send you a link when done.



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Justin
May 22, 2006, 1:56pm Report to Moderator Report to Moderator

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Quoted from Martin
Not a captcha system, it generates a random number and then compares it to the input from the user. I wrote it for registration authentication on 9.6

Give me a while and I'll convert to 9.71b for posting authentication then install/test it. I'll send you a link when done.


Actually, this will not prevent all bots from posting.


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Martin
May 22, 2006, 2:07pm Report to Moderator Report to Moderator

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Quoted from Justin


Actually, this will not prevent all bots from posting.


So how do they input a randomly generated number?



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kidmuto
May 22, 2006, 2:08pm Report to Moderator Report to Moderator
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this is still programmable behavior for a bot. captcha systems work because computers are not good at deciphering the distorted images, but humans can if just look at them and figure it out.  
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Justin
May 22, 2006, 2:12pm Report to Moderator Report to Moderator

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Quoted from Martin


So how do they input a randomly generated number?


You've got to make a hash of some sort (MD5 is what I use).

If you do not, you're just as bad as you are without the captcha system.


I do installs for $25 and upgrades for $20.
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Martin
May 24, 2006, 8:56am Report to Moderator Report to Moderator

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OK, thought I would carry on looking into this as these random image authentication scripts require GD which not everyone has. In fact 2 out of my 3 test sites did not have it.

I now have a random and encrypted verification system on my test site at:

http://www.opportunitynowhere.co.uk/cgi-bin/forum/Blah.pl?

I have incorporated into Post.pl so guests would need to paste the verification code into the input box before a post is accepted.

I am now working on a Registration version.



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