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HomeHomeUsing DNN Platf...Using DNN Platf...Administration ...Administration ...SPAM Registration Latest AdviceSPAM Registration Latest Advice
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1/29/2015 6:13 PM
 
Gareth Owen


Joined: 1/29/2015
Posts: 1
This issue has been cropping up for quite a while now and I would like to know if the DNN dev team has something in the pipeline to resolve the problem of spam registrations.

We have quite a few clients running DNN as their CMS and the spam registrations are starting to become an administration nightmare. We have tried the options mentioned in previous posts and turned off user registration completely if possible, however, there are cases where this is not viable.

One site in particular is problematic as the user registration has been integrated into their Pastel accounting system - this resulted in them having a lot of invalid accounts in Pastel which needed to be cleaned up on a regular basis. We have changed the site registration to "Private" for now so that we can weed out the spam registrations before they are integrated, but this still involves a fair amount of manual sifting through registrations on our side as we are getting about 50 -60 spam registrations per day.
 
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1/31/2015 9:52 AM
 
Mark McAvoy


Joined: 1/26/2015
Posts: 5
We have added Google's Recaptcha to the registration page but still get a couple of spam registrations a day. How are the spammers able to create accounts when the registration process requires a captcha?

Is there another way in DNN to register for an account which doesn't use the registration page that is open to spammers?
 
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1/31/2015 11:04 AM
 
cathal connolly


cathal connolly's Avatar

www.cathal.co.uk
Joined: 4/9/2003
Posts: 9676
nothing extra to worry about here, simply spoken spammers have gotten better at automating cracking captcha images via OCR - recaptcha 2.0 is currently the best option (one of the last comments at http://www.dnnsoftware.com/community-... has a module to help with this)
Buy the new Professional DNN7: Open Source .NET CMS Platform book Amazon US
 
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2/6/2015 2:10 PM
 
Robert Flynn

Joined: 3/29/2007
Posts: 42

The DNNSoftware Wiki page had a recommended procedure:  http://www.dnnsoftware.com/wiki/page/...

But I still got SPAM registrations after applying it.  The below addition to the Web.Config has worked for me so far.

If you are using IIS 7, you can turn on the request filtering and add the following code in web.config.
<    system.webServer    >
    <    security>
        <    requestFiltering>
            <    denyQueryStringSequences>
                <    add sequence="ctl=register" />
                <    add sequence="/register" />
            </    denyQueryStringSequences>
        </    requestFiltering>
    </    security>
< /    system.webServer   > 

 
This will deny the querystring "?ctl=register"

 
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2/6/2015 6:21 PM
 
Sebastian Leupold


Sebastian Leupold's Avatar

Sebastian Leupold's Avatar

Sebastian Leupold's Avatar

Sebastian Leupold's Avatar

www.dnnwerk.de
Joined: 3/8/2004
Posts: 46212
the web.config modification just removes a single entry for Spammers, the best Option might still be integrating re-captcha for Registration.
Cheers from Germany,
Sebastian Leupold

dnnWerk - The DotNetNuke Experts   German Spoken DotNetNuke User Group

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