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techisbest
PostPosted: Thu Aug 23, 2012 12:06 pm 
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I have been getting daily violations of user registration on my site. A new user will show up with a bot-generated posting made to my forum.

This suggests to me that the ReCaptcha for user registration is not keeping the bots out.

Anybody else experiencing this lately? Is there a better choice than ReCaptcha?
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alikon
PostPosted: Thu Aug 23, 2012 5:36 pm 
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are you allowing forum registration ?
consider that captcha is not a 100% solution to the spam problem
better in my opinion there are not perfect solution at all...

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techisbest
PostPosted: Thu Aug 23, 2012 6:25 pm 
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No, only community members can post in the forums.

Thanks for your reply.
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aliendna51
PostPosted: Fri Nov 09, 2012 4:23 pm 
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I have the exact same problem and it's really annoying! Any response will be appreciated..
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techisbest
PostPosted: Sat Nov 10, 2012 2:48 pm 
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I resorted to requiring administrator approval to sign up for membership. A bit annoying, but stopped the bots.
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alikon
PostPosted: Sun Nov 11, 2012 6:07 am 
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there are some plugins that blok spammer asking for spamminnes to webservices like: RBL, akismet, mollom,stopforumspam, defensio, project honeypot ect...

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techisbest
PostPosted: Sun Nov 11, 2012 1:20 pm 
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Thanks for those pointers. Going to try SpamFighter (jantispam plugin).

http://extensions.joomla.org/extensions ... tion/16331
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brad
PostPosted: Sun Nov 11, 2012 9:44 pm 
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Much of the spam these days is actually from real people, you might think it's bots. That means captcha is no longer a adequate defensive mechanism against spam.. frustrating I know.. but true.

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alikon
PostPosted: Mon Nov 12, 2012 5:57 am 
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@techisbest
a little bit selfpromoting give a try at my solution too http://extensions.joomla.org/extensions/access-a-security/site-security/captcha/21692

@brad
on this forum what kind of antispam measures are used ?

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brad
PostPosted: Mon Nov 12, 2012 6:13 am 
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alikon wrote:
@brad
on this forum what kind of antispam measures are used ?


We have captcha, but also other filters like url filtering, email verifications, as well as number of other "intelligence" gathering to try to predict the people that are just joining to spam users. We'll block known IP's once we are sure they are a spammer, though this has only limited benefits in the long run.

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asgokhale
PostPosted: Mon Nov 12, 2012 3:20 pm 
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Joined: Wed May 16, 2012 9:15 am
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techisbest wrote:
I have been getting daily violations of user registration on my site. A new user will show up with a bot-generated posting made to my forum.

This suggests to me that the ReCaptcha for user registration is not keeping the bots out.

Anybody else experiencing this lately? Is there a better choice than ReCaptcha?


I was having exactly the same problem. I installed the extension "EasyCalcCheck Plus" from Joomla extension directory and it worked like a charm ;-)
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alikon
PostPosted: Tue Nov 13, 2012 6:03 am 
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@brad
something like the bayesian filtering ?

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