https://www.youtube.com/watch?v=d7ILCoU9d4k      Scott Manley, Australian guy
https://www.youtube.com/watch?v=syAdX44pokE      Red Hat
https://www.youtube.com/watch?v=s7W5zsLp7xY      JayzTwoCents (???) performance
https://en.wikipedia.org/wiki/Kernel_page-table_isolation
https://www.youtube.com/watch?v=ekBV2AdUc5g      F5 DevCentral -- explain the other
https://www.youtube.com/watch?v=8FFSQwrLsfE      SANS Digital Forensics and Incident Response (long)
Steve Gibson

https://googleprojectzero.blogspot.co.at/2018/01/reading-privileged-memory-with-side.html

https://usn.ubuntu.com/usn/
https://www.youtube.com/channel/UC9-y-6csu5WGm29I7JiwpnA   Computerphile

Essential C  (Stanford)
  http://cslibrary.stanford.edu/101/EssentialC.pdf

An Introduction to the C Programming Language and Software Design (University of Sydney)
  http://www-personal.acfr.usyd.edu.au/tbailey/ctext/ctext.pdf

UNIX Tutorial for Beginners
  http://www.cs.unc.edu/~montek/teaching/Comp411-Fall17/UnixTut/

C for Java Programmers (Cornell)
  Good enough --- 
    arrays and pointers
    bit ops are the same, but not covered much in 201
    file I/O
https://www.cs.cornell.edu/courses/cs414/2005sp/cforjava.pdf

Lynda
  Dan Gookin, Learning C -- https://www.lynda.com/C-tutorials/Up-Running-C/173754-2.html
  Dan Gookin, Advanced C Programming -- https://www.lynda.com/C-tutorials/Further-Topics-C-Programming/195668-2.html
  Isac Artzi, C Essential Training -- https://www.lynda.com/C-tutorials/C-Essential-Training/164457-2.html

  Learning Linux Command Linux -- https://www.lynda.com/Linux-tutorials/Learn-Linux-Command-Line-Basics/435539-2.html
  Linux: Shells and Processes -- https://www.lynda.com/Linux-tutorials/Linux-Shells-Processes/554398-2.html

Use Linux Commands
  https://www.howtoforge.com/linux-commands/

Learning the shell
  http://linuxcommand.org/lc3_learning_the_shell.php

Introduction to Linux
  ftp://ftp.gnu.org/old-gnu/Manuals/make-3.79.1/html_chapter/make_toc.html#TOC4
An Introduction to Makefiles
  ftp://ftp.gnu.org/old-gnu/Manuals/make-3.79.1/html_chapter/make_2.html

Introduction to Linux
  https://www.doc.ic.ac.uk/~wjk/UnixIntro/

https://developer.apple.com/library/content/documentation/IDEs/Conceptual/gdb_to_lldb_transition_guide/document/lldb-command-examples.html
GDB
  lldb

Introduction to Linux
  https://training.linuxfoundation.org/linux-courses/system-administration-training/introduction-to-linux

UNIX Tutorial for Beginners  (Google recommends)
  http://www.ee.surrey.ac.uk/Teaching/Unix/


https://www.openssh.com

https://help.ubuntu.com/community/SSH/OpenSSH/Keys


http://www.cs.unc.edu/~montek/teaching/Comp411-Fall17/Lab1/Lab1-exercises.html

https://www.2braces.com/c-programming/