Links

LINUX
http://www.linuxfromscratch.org/
http://www.commandlinefu.com/
https://www.kernel.org/doc/Documentation/
FORUM
http://forums.kali.org/
SECURITY TOOLS
http://tools.kali.org/tools-listing/
http://www.cyberdegrees.org/resources/the-big-list/
http://sectools.org/
BLOG
https://www.schneier.com/
SECURITY BENCHMARK
https://www.cisecurity.org/cis-benchmarks/
OWASP
Testing Guide v4
Top Ten Cheat Sheet
Application Security Verification Standard Project
RFC
https://www.rfc-editor.org/
RSS
http://rss.securepla.net/FreshRSS/i/ - thanks Peter for link
CVE & CCE
https://www.niap-ccevs.org/
https://www.us-cert.gov/ncas/
https://web.nvd.nist.gov/view/vuln/search/
https://www.cvedetails.com/
ORGANIZATIONS
http://www.issa.org/
https://www.owasp.org/
https://www.sans.org/
CONFERENCES
https://www.blackhat.com/
https://www.defcon.org/index.html/
https://secure360.org/
https://securitybsides.pl/
FREE EDUCATION (MOOC)
http://myeducationpath.com/courses/
https://iversity.org/en/courses/
https://www.mooc-list.com/
https://www.cybrary.it/
LIST OF EVENT FROM POLAND
http://crossweb.pl/wydarzenia/