ConMan is a serial console management program designed to support a
large number of console devices and simultaneous users.

Supported console types:

 - Local serial devices
 - Remote terminal servers (via the telnet protocol)
 - IPMI Serial-Over-LAN (via FreeIPMI's libipmiconsole)
 - External processes (e.g., Expect)
 - Unix domain sockets

WWW: https://dun.github.io/conman/