Thanks to Wolfgang Rosenauer <stark@suse.de>
--- /dev/null
+Alias /radius/ /usr/share/dialup_admin/htdocs/
+<Directory /usr/share/dialup_admin/htdocs/>
+ Options None
+ order deny,allow
+ deny from all
+ allow from 127.0.0.1
+</Directory>
+
+# RECOMMENDED
+# For SSL-servers and user authentication
+#<Directory /usr/share/dialup_admin/htdocs/>
+# Options None
+# SSLRequireSSL
+# order deny,allow
+# deny from all
+# AuthType Basic
+# AuthUserFile /site/cfg/passwd
+# AuthGroupFile /site/cfg/group
+# AuthName "Radius"
+# require group radius
+# Satisfy Any
+#</Directory>
+