learning cyber security in public. linux / networking / web sec. clearance: lvl 0. machines pwned: 0. notes on github ↓github.com/Fersxvv UKJoined October 2026
Day 3 of learning cyber in public.
Answered yesterday's recap questions from memory, no notes.
Predicted awk '{print $1}' would print Aug 6 times before running it. It did.
Next: $NF to grab the IP from the end of each line.
github.com/Fersxvv/cyber-…
Day 2 of learning cyber in public.
SSH login detector. Counted failed logins with grep -c, then hit a bug: "invalid user" lines shift every word along, so grabbing the IP by position breaks.
Started awk to fix it. Typed .loh instead of .log.
github.com/Fersxvv/cyber-…
Day 1 of learning cyber in public.
Building a failed SSH login detector from scratch. Today: research and fake test logs.
Got loads wrong: said to ping the attacker, misread the source port, wrote SHH instead of SSH all day.
Mistakes and all:
github.com/Fersxvv/cyber-…
hello world.
I'm Fersx. Complete beginner learning cyber security in public.
Linux → networking → web sec. Every note goes on GitHub, mistakes included.
full notes in replies ↓
#cybersecurity#learninpublic
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