System for providing virtual machines

A system for providing virtual machines that provides virtual machines virtualized on a physical server for each user, the system for providing virtual machines comprising:

• a virtual router virtualizing means that virtualizes 1st to n-th virtual routers on at least one physical router;
• a virtual firewall virtualizing means that virtualizes 1st to n-th virtual firewalls on at least one physical firewall;
• a virtual machine virtualizing means that virtualizes the plurality of virtual machines on at least one physical server;
• a global network setting means that sets global networks individually connecting the 1st to n-th virtual routers and the 1st to n-th virtual firewalls to each other;
• a first private network setting means that sets private networks connecting the 1st to n-th virtual firewalls and the virtual machines to each other;
• and
• a first virtual machine assigning means that assigns the virtual machines to each user.