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Visual confirmation: use or disable?

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Red Dog
Board Member



Joined: 06 Mar 2009

Posts: 41


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PostPosted: Wed Mar 25, 2009 11:14 am 
Post subject: Re: Visual confirmation: use or disable?

I do not know too much about visual confirmation or how robots read it, but I do know this: IT DOES NOT HELP. At all! When I activated on my board, the number of new accounts per day, remain the saim. I do not know why or how robots read it, but they do...

I think the best solution is by using Humanizer. You replace the question and put "What is 1 + 1?". icon_biggrin.gif
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khofech
Board Member



Joined: 27 Feb 2009

Posts: 44



PostPosted: Thu Mar 26, 2009 2:44 am 
Post subject: Re: Visual confirmation: use or disable?

Ptirhiik wrote:
Yep: as the code is generated using the seed, and as the seed changes at each request, the both won't receive the same seed even if they ask at the exact same tick: one will access and update the database prior the second, making the code different.
and how the sid is generated ?
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Ptirhiik
Board Member



Joined: 19 Nov 2008

Posts: 114


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PostPosted: Thu Mar 26, 2009 6:33 am 
Post subject: Re: Visual confirmation: use or disable?

In include/sessions.php
Code:
$session_id = md5(dss_rand());


and in includes/functions.php:
Code:
function dss_rand()
{
   global $db, $board_config, $dss_seeded;

   $val = $board_config['rand_seed'] . microtime();
   $val = md5($val);
   $board_config['rand_seed'] = md5($board_config['rand_seed'] . $val . 'a');
   
   if($dss_seeded !== true)
   {
      $sql = "UPDATE " . CONFIG_TABLE . " SET
         config_value = '" . $board_config['rand_seed'] . "'
         WHERE config_name = 'rand_seed'";
      
      if( !$db->sql_query($sql) )
      {
         message_die(GENERAL_ERROR, "Unable to reseed PRNG", "", __LINE__, __FILE__, $sql);
      }

      $dss_seeded = true;
   }

   return substr($val, 4, 16);
}


nb.: note there are some accesses to the database before reaching this point.
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cherokee red
Board Member



Joined: 19 Nov 2008

Posts: 19
Location: Airdrie, UK


flag
PostPosted: Thu Mar 26, 2009 11:09 am 
Post subject: Re: Visual confirmation: use or disable?

Red Dog wrote:
I think the best solution is by using Humanizer. You replace the question and put "What is 1 + 1?". icon_biggrin.gif

Far too easyt for a bot to break that i'm afraid. They can just google it icon_wink.gif Google calculator can do more complex maths as well in case you wondered icon_razz.gif

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Dog Cow
Board Member



Joined: 18 Nov 2008

Posts: 378


flag
PostPosted: Thu Mar 26, 2009 3:08 pm 
Post subject: Re: Visual confirmation: use or disable?

Having to use Google is for n00bs, anyway. icon_rolleyes.gif Any programming language can evaluate mathematical expressions and equations.
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lumpy burgertushie
Board Member



Joined: 19 Nov 2008

Posts: 214


flag
PostPosted: Thu Mar 26, 2009 5:24 pm 
Post subject: Re: Visual confirmation: use or disable?

as far as I know, you still can't beat the RAC MOD .

robert
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khofech
Board Member



Joined: 27 Feb 2009

Posts: 44



PostPosted: Fri Mar 27, 2009 3:47 am 
Post subject: Re: Visual confirmation: use or disable?

what do RAC mod do ? and any direct link ?
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Jim_UK
Board Member



Joined: 19 Nov 2008

Posts: 538
Location: North West UK


flag
PostPosted: Fri Mar 27, 2009 8:52 am 
Post subject: Re: Visual confirmation: use or disable?

It inserts a required field into registration and the bots are stumped because they can not read the instructions.
It is virtually the same as the VIP code mod which I use and have attached. I have installed this on 7 boards and no bots in years.
Takes about 5 to 10 minutes to install.

Jim



myvipcode.zip
 Description:

Download
 Filename:  myvipcode.zip
 Filesize:  1.29 KB
 Downloaded:  367 Time(s)

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lumpy burgertushie
Board Member



Joined: 19 Nov 2008

Posts: 214


flag
PostPosted: Fri Mar 27, 2009 3:26 pm 
Post subject: Re: Visual confirmation: use or disable?

Install the RAC MOD and do not
allow guest posting anywhere on your board and 99.99% of your spam problems go away.
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Ram
Board Member



Joined: 23 Dec 2008

Posts: 100
Location: Somewhere over the rainbow


flag
PostPosted: Fri Mar 27, 2009 6:29 pm 
Post subject: Re: Visual confirmation: use or disable?

You should try Visual Confirmation (CAPTCHA) by Ptirhiik (is by far the best). Install takes 1min (you just have to add 3lines in 1 file), customisable without limits (you can add fonts and background pics) and I have never seen any bots skiping it.
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khofech
Board Member



Joined: 27 Feb 2009

Posts: 44



PostPosted: Fri Mar 27, 2009 6:33 pm 
Post subject: Re: Visual confirmation: use or disable?

I download em both, sound great, die bot die. and thanx guys (and maybe girls don't know hhhh)
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Ram
Board Member



Joined: 23 Dec 2008

Posts: 100
Location: Somewhere over the rainbow


flag
PostPosted: Fri Mar 27, 2009 7:27 pm 
Post subject: Re: Visual confirmation: use or disable?

I see no girls there icon_mrgreen.gif (or icon_sad.gif)
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khofech
Board Member



Joined: 27 Feb 2009

Posts: 44



PostPosted: Sat Mar 28, 2009 3:53 am 
Post subject: Re: Visual confirmation: use or disable?

Ram wrote:
I see no girls there icon_mrgreen.gif (or icon_sad.gif)


offtopic: we never know....
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