How to enable for Kerberos/Active Directory

Not tested as part of the normal build. Use at your own risk.

Enable this plugin by editing plugins.properties and adding the line:
Authenticator = fitnesse.authentication.NegotiateAuthenticator

If using Kerberos on Unix, create a jaas-krb5.conf file with these contents:

com.sun.security.jgss.accept  {
       com.sun.security.auth.module.Krb5LoginModule required
       storeKey=true
       isInitiator=false
       principal="HTTP/your.web.server@YOUR.REALM"
       useKeyTab=true
       keyTab="/path/to/your/http.keytab"
       ;
    };

Next, define these system properties when running the FitNesse[?] server:

-Djavax.security.auth.useSubjectCredsOnly=false
-Djava.security.auth.login.config=/path/to/jaas-krb5.conf
-Dsun.security.krb5.debug=true

You can remove the krb5.debug property later, when you know it's working.

 * @author David Leonard Released into the Public domain, 2009. No warranty:
 *         Provided as-is.