X-Forwarded-For code: protect file/folder in .htaccess
In this tutorial you will find out about the .htaccess file and the power it has to improve your website security.
Mac Server
[Solved] Server 4.0 – VPN problem
After the update to Server 4.0 and Yosemite 10.10 my VPN service stop working. It seems that the only solution was to switch off “static IP” and activate DHCP (Source)