Socketed SSH
Systemd is a system used in Linux to manage boot and system processes. Its “units” are configuration files that describe the processes and services that systemd manages. One of these units is systemd.socket, which starts the corresponding daemon when a connection is established through a socket with the machine. A socket is a form of communication between processes over a network or within the system. By creating a unit of this type, we ask it to listen on a specific socket and start a specific service when a connection is received. …