Bug 219724: typo in URL in section 4.2.5 of the guide; r=kiko, a=justdave.

docs/en/xml/installation.xml

 <!-- <!DOCTYPE chapter PUBLIC "-//OASIS//DTD DocBook XML V4.1.2//EN"> -->
-<!-- $Id: installation.xml,v 1.53 2008/04/04 06:46:43 jake%bugzilla.org Exp $ -->
+<!-- $Id: installation.xml,v 1.54 2008/04/04 06:46:44 jocuri%softhome.net Exp $ -->
 <chapter id="installation">
   <title>Installation</title>
 
@@ -1072,7 +1072,7 @@ man 5 crontab
       incorporate the code changes necessary to fulfill the CERT advisory
       requirements mentioned in 
       <ulink
-      url="http://www.cet.org/tech_tips/malicious_code_mitigation.html/#3"/>.
+      url="http://www.cert.org/tech_tips/malicious_code_mitigation.html/#3"/>.
       Making the change below will fix the problem if your installation is for
       an English speaking audience.
       </para>