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An excursion to a world of dual spaces in physics.

I have recently became mad about such a simple thing as a screen lock. So here is my try at very simple lock for minimal desktops.

If you’re a person who owns a small public facing server, you probably use ssh to access the server. To add more security, it is a good idea to monitor who and when logs to your machine. You can overkill it with some bloat ISPConfig etc., or you can write your own little efficient shell script to send you notifications right to your mobile phone/mail when somebody or something logs in.