The history of the Linux kernel is strongly linked to the GNU project.
In 1991 Linus Torvalds began work on a non-commercial replacement for MINIX 12 that later became Linux.
However, Linux can be used in both graphical environment and in console mode as well.

Yes, it might sound little crazy and may you all think that what crap am I talking.
you might no longer start and stop daemons.
inetd-style services no longer accept connections.

You cannot cleanly reboot the system.
The vulnerability is so critical that you cannot cleanly reboot the system.
Systemd is defective by design.

Writing bug-free software is extremely difficult.
Even good programmers would inevitably introduce bugs into a project of the scale and complexity of systemd.
It is not too late to stop this.
Systemd offers very few compelling features over existing implementations, but does carry a large amount of risk.
If youre an software developer, do not use systemds non-standard interfaces.
There will be better alternatives in the future that are more secure than what we have now.
Clickhereto read the full bug report.