KVM is a device that does not depend on the operating system and allows to provide the remote access to the dedicated server. The signal is in this case transmitted via IP protocol. KVM allows to perform operations that are unavailable via regular remote access. Also the advantage of KVM is that it does not follow any rules of operating system - for example, if you block the account in Active Directory or in the /etc/passwd file and it will not lead to disabling of the user password in KVM.
KVM deploys such technology as Virtual Media. This technology helps to transmit data via the IP protocol. It will give the ability to install programs or even full operating system remotely.
KVM allows to work with different types of signals, to work with content that is transmitted, as well as control incoming and outgoing data.