news
today's howtos
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Linux Handbook ☛ LHB GNU/Linux Digest #26.14: Free CTF, Special Permissions, Process Substitution and More
Time to challenge yourself and test your GNU/Linux command line knowledge.
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TecMint ☛ 10 Scenario-Based Linux Troubleshooting Interview Questions and Answers
For example, an interviewer might tell you that a server shows its disk as 100% full, even though a developer just deleted a 6 GB log file. A candidate who only knows df and rm usually gets stuck at that point, while a candidate who has handled a real incident starts asking which process might still have that file open.
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Tom Hodson ☛ Tom Hodson - Reinstalling my VPS
This is a very much a “pets not cattle” machine, to reverse the common trope about treating servers as cattle rather than pets. I log into it directly. I administer to it by typing commands out and manually editing a bunch of files in /etc. I do have a couple docker containers on there but generally I try to avoid running things through docker if I can, I find them initially convenient but long term more annoying to maintain and debug.
Old skool.
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Serge Zaitsev ☛ Bunnymator, or impractical computer vision
I vaguely remember that in the early days of smartphones there was an app that allowed you to print a grid of squares. Then you scribbled some hand-drawn animated frames in each cell. Then you took a photo and got a nice wobbly cartoon. Just like the flip-book animations we did on the notebook margins at school. Stick people with their crazy lives full of running, playing football and occasionally fighting.
I tried to find the app (not too zealously, because building one myself would be more fun, anyway). Some apps required a special template with QR codes or Aruco markers to locate the grid and the cells. I wanted to go with just a blank paper and a pen. Grid to be drawn with a ruler, to not spoil the kids (and of course some backup grids were printed – after all, it’s art, not draughtsmanship).
My first version took me one evening and a hundred lines of code. It was pre-AI, so it had to be very simple.