Condensed /sec/ resources

>> /sec/
Learning: https://pastebin.com/VNTsyNKp
CTF/Wargames: https://pastebin.com/u2QTfmZn
News: https://pastebin.com/tDn5qzZE
Other useful stuff: https://pastebin.com/u21XrVaz
Essentials Pastebin: https://pastebin.com/UY7RxEqp
Books: http://www.allitebooks.com/
Network visualisation: https://dowse.eu/
Unofficial grsec: https://github.com/minipli/linux-unofficial_grsec/tree/linux-4.9.x-unofficial_grsec
Security tips in order of difficulty: https://pastebin.com/5XfDX4wL
Qualys Security Advisory - The Stack Clash: https://www.qualys.com/2017/06/19/stack-clash/stack-clash.txt