1.0InMotion Hosting Support Centerhttps://www.inmotionhosting.com/supportInMotion Hosting Contributorhttps://www.inmotionhosting.com/support/author/jamesr/rich600338<blockquote class="wp-embedded-content" data-secret="z6ZDmchl3J"><a href="https://www.inmotionhosting.com/support/edu/dokuwiki/install-captcha-plugin-doku/">Installing the captcha plugin in DokuWiki</a></blockquote><iframe sandbox="allow-scripts" security="restricted" src="https://www.inmotionhosting.com/support/edu/dokuwiki/install-captcha-plugin-doku/embed/#?secret=z6ZDmchl3J" width="600" height="338" title="“Installing the captcha plugin in DokuWiki” — InMotion Hosting Support Center" data-secret="z6ZDmchl3J" frameborder="0" marginwidth="0" marginheight="0" scrolling="no" class="wp-embedded-content"></iframe><script> /*! This file is auto-generated */ !function(d,l){"use strict";l.querySelector&&d.addEventListener&&"undefined"!=typeof URL&&(d.wp=d.wp||{},d.wp.receiveEmbedMessage||(d.wp.receiveEmbedMessage=function(e){var t=e.data;if((t||t.secret||t.message||t.value)&&!/[^a-zA-Z0-9]/.test(t.secret)){for(var s,r,n,a=l.querySelectorAll('iframe[data-secret="'+t.secret+'"]'),o=l.querySelectorAll('blockquote[data-secret="'+t.secret+'"]'),c=new RegExp("^https?:$","i"),i=0;i<o.length;i++)o[i].style.display="none";for(i=0;i<a.length;i++)s=a[i],e.source===s.contentWindow&&(s.removeAttribute("style"),"height"===t.message?(1e3<(r=parseInt(t.value,10))?r=1e3:~~r<200&&(r=200),s.height=r):"link"===t.message&&(r=new URL(s.getAttribute("src")),n=new URL(t.value),c.test(n.protocol))&&n.host===r.host&&l.activeElement===s&&(d.top.location.href=t.value))}},d.addEventListener("message",d.wp.receiveEmbedMessage,!1),l.addEventListener("DOMContentLoaded",function(){for(var e,t,s=l.querySelectorAll("iframe.wp-embedded-content"),r=0;r<s.length;r++)(t=(e=s[r]).getAttribute("data-secret"))||(t=Math.random().toString(36).substring(2,12),e.src+="#?secret="+t,e.setAttribute("data-secret",t)),e.contentWindow.postMessage({message:"ready",secret:t},"*")},!1)))}(window,document); //# sourceURL=https://www.inmotionhosting.com/support/wp-includes/js/wp-embed.min.js </script> Anonymous visitors can edit your DokuWiki site by default. To prevent spam bots from editing your wiki pages you can install the captcha plugin This article explains how to install the captcha plugin.https://www.inmotionhosting.com/support/wp-content/uploads/2013/01/edu_dokuwiki_104_enable-captcha_doku-captcha-1-get-link.gif