olemus
operatsioonisüsteem:
- sarnaneb UNIXile
- peamiselt priivara ja lähtekoodina
- paljudel platvormidel
- tuum: Linus Torvalds, 1991,
edasi arendati hajusalt

ülevaateid
https://www.ukwebhostreview.com/blog/linux-statistics/

http://www.explainthatstuff.com/linux.html

https://en.wikipedia.org/wiki/Linux
https://en.wikipedia.org/wiki/History_of_Linux
https://en.wikipedia.org/wiki/Linux_kernel
https://en.wikipedia.org/wiki/Linux_distribution
https://en.wikipedia.org/wiki/List_of_Linux_distributions

https://www.pcwdld.com/linux-commands-cheat-sheet

õpikuid
http://www.penguintutor.com/linux/

http://linux-training.be/linuxfun.pdf

https://www.tldp.org/LDP/intro-linux/html/

veebisait
http://www.linux.org/

turvalisus:
https://www.cbtnuggets.com/blog/certifications/microsoft/why-linux-is-more-secure-than-windows

https://blog.fearcat.in/a?ID=00300-f1510fa7-3d25-482d-b655-d6527b66d8cd

http://www.linuxsecurity.com/

http://www.linuxtopia.org/LinuxSecurity/

http://www.av-comparatives.org/wp-content/uploads/2015/05/avc_linux_2015_en.pdf

https://linux-audit.com/the-state-of-linux-security/

http://www.penguintutor.com/linux/introduction-linux-security

https://www.trendmicro.com/vinfo/us/security/news/cybercrime-and-digital-threats/linux-security-a-closer-look-at-the-latest-linux-threats

https://www.sans.org/media/score/checklists/LinuxCheatsheet_2.pdf

vt ka
- Android
- BSD
- Debian
- distro
- FreeBSD
- Kali Linux
- Linuxi tuuma turvaprojektid
- SELinux
- Ubuntu
- UNIX
- Yellow Dog Linux