On MediaWiki, you can tell reCaptcha to show the captcha when links are being posted. In fact, I beleive it is the default behavior. If you're getting a ton of spam and have few volunteers, here's a few suggestions:<br>
<br>The following will force all groups, except for sysops and bots, to show the captcha:<br><pre class="de1"><span class="re0">$wgGroupPermissions</span><span class="br0">[</span><span class="st_h">'user'</span> <span class="br0">]</span><span class="br0">[</span><span class="st_h">'skipcaptcha'</span><span class="br0">]</span> <span class="sy0">=</span> false<span class="sy0">;</span>
<span class="re0">$wgGroupPermissions</span><span class="br0">[</span><span class="st_h">'autoconfirmed'</span><span class="br0">]</span><span class="br0">[</span><span class="st_h">'skipcaptcha'</span><span class="br0">]</span> <span class="sy0">=</span> <span class="kw4">false</span><span class="sy0">;</span></pre>
If you want to manually confirm users, make a new group and add it to skipcaptcha. <br><br>In addition, adding a recent-changes channel for the wiki allows vandal-fighting tools like VandalFighter to connect and show changes in real-time to your volunteers, in addition to volunteers themselves. <br>
<br>Installing patrolling extensions can also help.<br><br>Adding a blacklisting extension can allow you to automatically block people who post certain patterns.<br><br>Hope this helps.<br><br><div class="gmail_quote">On Wed, Oct 12, 2011 at 1:01 PM, Nebadon Izumi <span dir="ltr"><<a href="mailto:nebadon2025@gmail.com">nebadon2025@gmail.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">I could have sworn editing and creating posts made you do captcha also on OpenSimulator.org, i remember having to do it when i was posting the Tuesday meeting chat logs.<div>
<div></div><div class="h5"><br><br><div class="gmail_quote">On Wed, Oct 12, 2011 at 12:54 PM, Dave Coyle <span dir="ltr"><<a href="mailto:hello@coyled.com" target="_blank">hello@coyled.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div>On Oct 12, 2011, at 8:33 AM, Justin Clark-Casey wrote:<br>
> coyled has manfully volunteered to help out with <a href="http://opensimulator.org" target="_blank">opensimulator.org</a> maintenance, so if we ask him nicely (or if he's listening :) he might be able to install this or maybe recommend something else (such as the Google captch Volker mentioned).<br>
<br>
</div>I'll take a look at this tonight. Account creation currently has reCaptcha enabled, so if the spammers are creating new accounts they're already getting past that. I'll also take a look at email verification for new accounts and some of the other options.<br>
<br>
-coyled<br>
<div><div></div><div><br>
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</div></div></blockquote></div><br><br clear="all"><br></div></div><div><div></div><div class="h5">-- <br>Michael Emory Cerquoni - Nebadon Izumi @ <a href="http://osgrid.org" target="_blank">http://osgrid.org</a><br>
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