How can I turn off the remote server by call or SMS from a cell phone?

Question

System administration

Good afternoon.
Actually a subject, like the device is what that, can who used and knows reliable?

Answer 1

And if the show masks come with jammers (as in counter-terrorist operations)? ;)
You can get confused with the USB-modem.
But the simplest thing: the phone is in a box (to remove external illumination), a photoresistor is directed to the screen. Next is the simplest circuit on one transistor (you can google it), from it a signal to the power button of the system unit. A call came in - the screen lit up - the server turned off.

Answer 2

How to turn on the server remotely?

Answer 3

Why bother with it, it’s easier to write a telegram bot thread :)

Answer 4

GPRS Shield and use IO on the motherboard, if there is, and if not, then through the microcontroller.