Modeling is secure of telecommunication channels with using virtualization

In modern world upgrade of protect of communications channels is essential. Modeling is one of the methods for learning new methods attacks and new methods protect. We solved this problem by using a hardware-software complex for modeling. Complex for modeling is working using with virtualization. Complex includes virtualization system VirtualBox, network simulator GNS3, routers Cisco, switches Cisco, operation systems KaliLinux, operation systems Ubuntu, program Wireshark, and program routers on the operation system Vyatta. In this paper, we consider two examples of use of the complex for modeling. The first example describes the transfer of FTP-traffic on open and secure channels. The second example describes the modeling of the DOS-attack on the server. These examples describe some modeling techniques used in the complex. We modeled the operations of networks, servers, applications and attacked them. The identified vulnerabilities are closed by means of protective measures.