• Offensive Security’s PWB and OSCP — My Experience
  http://www.securitysift.com/offsec-pwb-oscp/

• OSCP Journey
  https://scriptkidd1e.wordpress.com/oscp-journey/

• Down with OSCP
  http://ch3rn0byl.com/down-with-oscp-yea-you-know-me/

• Jolly Frogs - Tech Exams (Very thorough)

http://www.techexams.net/forums/security-certifications/110760-oscp-jollyfrogs-tale.html

• https://www.vulnhub.com/
  https://www.root-me.org/

• Walk through of Tr0ll-1 - Inspired by on the Trolling found in the OSCP exam
  https://highon.coffee/blog/tr0ll-1-walkthrough/
  Another walk through for Tr0ll-1
  https://null-byte.wonderhowto.com/how-to/use-nmap-7-discover-vulnerabilities-launch-dos-attacks-and-more-0168788/
  Taming the troll - walkthrough
  https://leonjza.github.io/blog/2014/08/15/taming-the-troll/
  Troll download on Vuln Hub
  https://www.vulnhub.com/entry/tr0ll-1,100/

• Sickos - Walkthrough:
  https://highon.coffee/blog/sickos-1-walkthrough/
  Sickos - Inspired by Labs in OSCP
  https://www.vulnhub.com/series/sickos,70/

• Lord of the Root Walk Through
  https://highon.coffee/blog/lord-of-the-root-walkthrough/
  Lord Of The Root: 1.0.1 - Inspired by OSCP
  https://www.vulnhub.com/series/lord-of-the-root,67/

• Tr0ll-2 Walk Through
  https://leonjza.github.io/blog/2014/10/10/another-troll-tamed-solving-troll-2/
  Tr0ll-2
  https://www.vulnhub.com/entry/tr0ll-2,107/

• Penetration Tools Cheat Sheet
  https://highon.coffee/blog/penetration-testing-tools-cheat-sheet/

• Pen Testing Bookmarks
  https://github.com/kurobeats/pentest-bookmarks/blob/master/BookmarksList.md

• OSCP Cheatsheets
  https://github.com/slyth11907/Cheatsheets

• CEH Cheatsheet
  https://scadahacker.com/library/Documents/Cheat_Sheets/Hacking%20-%20CEH%20Cheat%20Sheet%20Exercises.pdf

• Net Bios Scan Cheat Sheet
  https://highon.coffee/blog/nbtscan-cheat-sheet/

• Reverse Shell Cheat Sheet
  https://highon.coffee/blog/reverse-shell-cheat-sheet/

• NMap Cheat Sheet
  https://highon.coffee/blog/nmap-cheat-sheet/

• Linux Commands Cheat Sheet
  https://highon.coffee/blog/linux-commands-cheat-sheet/

• Security Hardening CentO 7
  https://highon.coffee/blog/security-harden-centos-7/

• MetaSploit Cheatsheet
  https://www.sans.org/security-resources/sec560/misc_tools_sheet_v1.pdf

• Google Hacking Database:
  https://www.exploit-db.com/google-hacking-database/

• Windows Assembly Language Mega Primer
  http://www.securitytube.net/groups?operation=view&groupId=6

• Linux Assembly Language Mega Primer
  http://www.securitytube.net/groups?operation=view&groupId=5

• Metasploit Cheat Sheet
  https://www.sans.org/security-resources/sec560/misc_tools_sheet_v1.pdf

• A bit dated but most is still relevant

http://hackingandsecurity.blogspot.com/2016/04/oscp-related-notes.html

• NetCat

• http://www.sans.org/security-resources/sec560/netcat_cheat_sheet_v1.pdf

• http://www.secguru.com/files/cheatsheet/nessusNMAPcheatSheet.pdf

• http://sbdtools.googlecode.com/files/hping3_cheatsheet_v1.0-ENG.pdf

• http://sbdtools.googlecode.com/files/Nmap5%20cheatsheet%20eng%20v1.pdf

• http://www.sans.org/security-resources/sec560/misc_tools_sheet_v1.pdf

• http://rmccurdy.com/scripts/Metasploit%20meterpreter%20cheat%20sheet%20reference.html

• http://h.ackack.net/cheat-sheets/netcat

• Exploit-db
  https://www.exploit-db.com/

• SecurityFocus - Vulnerability database
  http://www.securityfocus.com/

• Vuln Hub - Vulnerable by design
  https://www.vulnhub.com/

• Exploit Exercises
  https://exploit-exercises.com/

• SecLists - collection of multiple types of lists used during security assessments. List types include usernames, passwords, URLs, sensitive data grep strings, fuzzing payloads
  https://github.com/danielmiessler/SecLists

• Security Tube
  http://www.securitytube.net/

• Metasploit Unleashed - free course on how to use Metasploit
  https://www.offensive-security.com/metasploit-unleashed/

• 0Day Security Enumeration Guide http://www.0daysecurity.com/penetration-testing/enumeration.html

• Github IO Book - Pen Testing Methodology
  https://monkeysm8.gitbooks.io/pentesting-methodology/

• Fuzzy Security http://www.fuzzysecurity.com/tutorials/16.html

• accesschk.exe https://technet.microsoft.com/en-us/sysinternals/bb664922

• Windows Priv Escalation For Pen Testers https://pentest.blog/windows-privilege-escalation-methods-for-pentesters/

• Elevating Privileges to Admin and Further https://hackmag.com/security/elevating-privileges-to-administrative-and-further/

• Transfer files to windows machines https://blog.netspi.com/15-ways-to-download-a-file/