A computer network designer system can protect data from a network by using a VPN network system (Virtual Private Network), because of communication, whether a VPN network system is the same place or different places in the system through the network server requires special security measures.Therefore, a VPN network system (Virtual Private Network) allows the server to send information through the security and strong more, because it is encrypted by the system before sending data. A VPN network system is difficult if people would come and take an information from the computer.