How can we manually unmask services that are masked (service is masked) that we cannot unmask with the unmask option of the systemctl command?
Linux services are programs running in the background, which do not have a separate user interface, but respond to the requests of other programs through some communication mechanism (mostly on the network). Services in modern Linux systems are managed by systemd, and they can be started, stopped, masked, unlocked, etc. using the systemctl command. There are cases when the systemctl command cannot unmask, in which case a manual solution must be applied.
