https://trailofbits.github.io/ctf/
https://jhalon.github.io/becoming-a-pentester/
https://medium.com/@gavinloughridge/a-beginners-guide-to-vulnhub-part-1-52b06466635d
https://medium.com/@gavinloughridge/a-beginners-guide-to-vulnhub-part-2-b13c6314027c
https://veteransec.com/2018/09/21/not-your-ordinary-oscp-review/
https://github.com/The-Art-of-Hacking/h4cker/tree/master/vulnerable_servers
https://github.com/apsdehal/awesome-ctf
https://github.com/bkimminich/juice-shop-ctf/issues
https://github.com/enaqx/awesome-pentest
https://github.com/nixawk/pentest-wiki
https://github.com/coreos/clair
https://h4cker.org/web/ https://theartofhacking.org/fundamentals/index.html
https://tools.kali.org/web-applications/websploit
https://www.offensive-security.com/metasploit-unleashed/
https://www.vulnhub.com/?q=nullbyte&sort=date-asc&type=vm
http://www.xss-payloads.com/payloads-list.html?b#category=browsing
https://trailofbits.github.io/ctf/vulnerabilities/references/EssentialC.pdf
https://www.owasp.org/images/1/19/OTGv4.pdf