KVM (keyboard, video, mouse) switches and serial console servers for personal computer and network management; electronic switching and console servers for interfacing to personal computers, workstations, and other computer networking equipment and parts therefor to enable the coaxial cable-based, UTP-based, LAN-based, WAN-based, modem-based, and Internet/web-based access and control from a single keyboard, monitor, mouse and other peripherals; computer interface modules; and serial console controller having a plurality of serial ports for connecting to a global network to provide secure, remote, out-of-band access to a multiple number of target communication servers over an Internet provider from any web browser anywhere in the world