Posts

Showing posts with the label security

Funny BASH snippets

echo howdy /bin/echo howdy /bin/../bin/echo howdy /bin/echo* howdy cd /bin echo* howdy *echo howdy ec*ho howdy ech? howdy ??h? howdy ech[o] howdy cd /tmp ec${howdy}ho howdy echo$howdy howdy ec''ho howdy ec""ho howdy 'ec'ho howdy "ec"ho howdy 'echo' howdy "echo" howdy ech\o howdy ec``ho howdy ec$()ho howdy ec`true`ho howdy ec$(true)ho howdy $yay echo howdy `` echo howdy `true` echo howdy `echo echo` howdy :&echo howdy if echo howdy;then :;else echo howdy;fi ! echo howdy { echo howdy ;} (echo howdy) eval echo howdy xargs echo howdy < /dev/null sh -c 'echo howdy' bash -c 'echo howdy' ssh localhost 'echo howdy' cd /tmp printf "all:\n\techo howdy" > Makefile make cd /tmp echo echo howdy > bash chmod +x bash ./bash cd /tmp cp /bin/bash bash echo echo howdy > bash ./bash . ./bash bash bash PATH=. bash alias howdy='echo howdy...

My dreams coming true: OS kernels and security today

I have received response concerning my (complicated) grammar. Consequently, I try to compose simpler structures. :) I started using computers at a young age, so I mostly played games at first. I didn't play much, though. One of my favourite games at the time was a real time strategy game (Dune2). I was amazed of the program. I always wondered how it works. That was the motivation behind my programming career. It happens to me often that I want to improve things I dislike. I first wished Dune2 had a better interface and more intelligent units with a gameplay requiring less micro-management. A friend of mine demonstrated Total Annihilation for me some years later. It pretty much covered most improvements I wanted to make at that time. I wanted to create a better operating system almost from day one. I always wished I had a more powerful OS shell than the one I had then (command.com at first, later DOS Navigator). I needed to design and compile my own small applications even for the m...