# ctf

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Capture-The-Flag, one of the most amazing (and sometimes frustrating) ways to learn stuff while looking at computers all day.

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In short: other people define challenges that can be solved by gainin access to some information called a "flag" (hence the name: "Capture the flag").

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By providing the flag to the people organizing the challenges, one can probe that the challenge has been solved. How you gain access to the flag is up to you, [almost](https://x.com/gf_256/status/1206393845497376768) anything is allowed.

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The challenges themselves can fall into many categories (and some don't), but are mostly part of the reversing, web-exploitation, forensics, cryptography and binary-exploitation categories.

## Resources

- starting out
  - [tryhackme](https://tryhackme.com)
  - [hackthebox](https://www.hackthebox.com)
  - [overthewire](https://overthewire.org/wargames/)
  - [hextree](https://hextree.io)
  - [open security trainings](https://ost2.fyi)
- find CTFs / meta CTF tracking
  - [ctftime](https://ctftime.org)
  - [247ctf](https://247ctf.com)

### Challenges

- pwn
  - [pwn.college](https://pwn.college)
  - [pwnable.kr](https://pwnable.kr)
  - [pwnable.tw](https://pwnable.tw)
  - [pwnable.xyz](https://pwnable.xyz)
- crypto
  - [cryptohack](https://cryptohack.org)
  - [cryptopals](https://cryptopals.com)
  - [mysterytwister](https://mysterytwister.org/challenges/)
- web
  - [Portswigger Academy](https://portswigger.net/web-security)
- archives
  - [archive.ooo](https://archive.ooo)

### Zines

- META: [vx-underground ezine collection](https://www.vx-underground.org/#E:/root/Archive/Collections/Ezine%20Collection)
- [paged out!](https://pagedout.institute)
- POC||GTFO
  - [all issues](https://www.alchemistowl.org/pocorgtfo/)
  - [printed book (nostarchpress)](https://nostarch.com/gtfo)
- [phrack](http://phrack.org)
- [tmpout.sh](https://tmpout.sh)

### Video content

- [Pwny Racing](https://www.youtube.com/watch?v=L_ZqbkCQs1s&list=PLzzz0pYwY0M1GHFr8zmN3_6U4CZ-j8hUb)
- [LiveOverflow](https://www.youtube.com/@LiveOverflow)
- [PwnFunction](https://www.youtube.com/@PwnFunction)
- [John Hammond](https://www.youtube.com/@_JohnHammond)
- [gamozolabs](https://www.youtube.com/@gamozolabs)
- [Laurie Wired](https://www.youtube.com/@lauriewired)

## tree

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