Resources

Resources for netsec.

Tools

Empire. Post-exploitation framework for Windows and Linux.
Koadic. Post-exploitation command and control for Windows.
Impacket. Low-level access to packets and some protocols via Python.

MASSCAN. Mass IP port scanner.
MassDNS. High performance DNS stub resolver.

Enumeration lists

Basic Linux Privilege Escalation. g0tmi1lk's enumeration list for Linux.
Penetration Testing Tools Cheat Sheet. HighOn.Coffee's cheat sheet / enumeration for pen testing.
Windows Privilege Escalation Fundamentals. Fuzzysecurity's enumeration list for Windows.
Windows Privilege Escalation - a cheatsheet.
Security. Xapax's enumeration guide.

Vulnerability lookup

0day.today, also within TOR at http://mvfjfugdwgc5uwho.onion.
Exploits Database.
Security Focus.

Privilege escalation scripts

Linuxprivchecker.
LinEnum.
Reconnoitre.

Stuff to read online

Reddit

Netsec.
AskNetsec.
Reverseengineering.
Lowlevel.
Rootkit.
Security-related CTF.

Other lists

"Awesome Hacking" list on Github.
"SQL injection tutorials by SecurityIdiots.