RedEyes is a powerful host and network monitor designed for testing performance and availability of hosts connected to the LAN or Internet (workstations, servers, routers, etc) with an IP address, as well as services running on these devices that work with TCP and alert administrators in case of failure of these devices or services. Efficiency of the device is verified using the protocols TCP, UDP, HTTP and ICMP. Efficiency of services performed by the implementation of the connection attempt to TCP port on which to run services (web server, mail server, proxy-server, domain controller, etc).