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Ntxissacsc5 yellow 1-beginnerslinux bill-petersen

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Ntxissacsc5 yellow 1-beginnerslinux bill-petersen

  1. 1. NTXISSA Cyber Security Conference – November 10-11, 2017 @NTXISSA #NTXISSACSC5 Linux in an Hour Bill Petersen Principal Information Security Analyst Heartland, a Global Payments Company November 10, 2017
  2. 2. NTXISSA Cyber Security Conference – November 10-11, 2017 @NTXISSA #NTXISSACSC5 Who am I? • Bill Petersen • Worked with Linux since 1992 • Built and Secured Internet servers • Vulnerability and Penetration tester • In my spare time, I love to camp, travel, sail, bike, hike, read, shoot, and play with Linux 2
  3. 3. NTXISSA Cyber Security Conference – November 10-11, 2017 @NTXISSA #NTXISSACSC5 Linux in an Hour • Why Linux • Which Linux distribution • How to get started • Commands • You can’t teach me everything in 1 hour? • Where to go for more information 3
  4. 4. NTXISSA Cyber Security Conference – November 10-11, 2017 @NTXISSA #NTXISSACSC5 Why Linux? • IT’s FREE • Free OS • Free Compilers • Free servers (web, email, database, LDAP, high availability) • Free documentation (LOTS OF DOCUMENTATION) • Helpful people • A LOT OF FREE TOOLS and APPLICATIONS 4
  5. 5. NTXISSA Cyber Security Conference – November 10-11, 2017 @NTXISSA #NTXISSACSC5 Which Linux Distribution • Beginner / Learning: Kali, Kubuntu, Fedora • Home banking: Mint • Information Security / Hacking: Kali • Server (free): Centos • Server (supported): Red Hat Enterprise Linux 5
  6. 6. NTXISSA Cyber Security Conference – November 10-11, 2017 @NTXISSA #NTXISSACSC5 How to get started • Download the ISO • Download VMware or Virtual Box • Install and play 6
  7. 7. NTXISSA Cyber Security Conference – November 10-11, 2017 @NTXISSA #NTXISSACSC5 How to get started • Download the ISO • Download tool to write image For instance – Fedora Media Writer Win32 Disk Imager • Boot the USB stick • Play 7
  8. 8. NTXISSA Cyber Security Conference – November 10-11, 2017 @NTXISSA #NTXISSACSC5 How to get started • Like what you see? • Insert the USB drive in an old computer • Install from the USB to the hard drive • Play and Play 8
  9. 9. NTXISSA Cyber Security Conference – November 10-11, 2017 @NTXISSA #NTXISSACSC5 User Interface • There are the usual GUI interfaces • The power of Linux is the: • Tools • Transparency • Ability to Tune the system • Control – tools, processes, everything • EVERYTHING IS TREATED LIKE A FILE 9
  10. 10. NTXISSA Cyber Security Conference – November 10-11, 2017 @NTXISSA #NTXISSACSC5 User Interfaces 10
  11. 11. NTXISSA Cyber Security Conference – November 10-11, 2017 @NTXISSA #NTXISSACSC5 Getting Started – Basic Commands • ls - List a directory 11
  12. 12. NTXISSA Cyber Security Conference – November 10-11, 2017 @NTXISSA #NTXISSACSC5 Getting Started – Basic Commands 12 • ls • cat • more • nano • ping • ssh • ifconfig • netstat • ps • ls; ls –l; ls –altr; ls –ld; ls -lR • cat somefile • more somefile • nano somefile • ping 4.2.2.1 • ssh someplace.ufo.com • Ifconfig -a • netstat -an • ps -eaf; ps -aux
  13. 13. NTXISSA Cyber Security Conference – November 10-11, 2017 @NTXISSA #NTXISSACSC5 Getting Started – List Directory • ls 13
  14. 14. NTXISSA Cyber Security Conference – November 10-11, 2017 @NTXISSA #NTXISSACSC5 Getting Started – List Directory • ls -l 14
  15. 15. NTXISSA Cyber Security Conference – November 10-11, 2017 @NTXISSA #NTXISSACSC5 Getting Started – List Directory • ls -l 15
  16. 16. NTXISSA Cyber Security Conference – November 10-11, 2017 @NTXISSA #NTXISSACSC5 Getting Started – List Directory • ls -altr 16
  17. 17. NTXISSA Cyber Security Conference – November 10-11, 2017 @NTXISSA #NTXISSACSC5 Getting Started – List Directory • ls -lR 17
  18. 18. NTXISSA Cyber Security Conference – November 10-11, 2017 @NTXISSA #NTXISSACSC5 Getting Started - cat • cat /etc/passwd 18
  19. 19. NTXISSA Cyber Security Conference – November 10-11, 2017 @NTXISSA #NTXISSACSC5 Getting Started - more • more ChickenSoupForTheSoul.txt 19
  20. 20. NTXISSA Cyber Security Conference – November 10-11, 2017 @NTXISSA #NTXISSACSC5 Getting Started - nano 20
  21. 21. NTXISSA Cyber Security Conference – November 10-11, 2017 @NTXISSA #NTXISSACSC5 Getting Started - ping 21
  22. 22. NTXISSA Cyber Security Conference – November 10-11, 2017 @NTXISSA #NTXISSACSC5 Getting Started - ifconfig 22
  23. 23. NTXISSA Cyber Security Conference – November 10-11, 2017 @NTXISSA #NTXISSACSC5 Getting Started - netstat 23
  24. 24. NTXISSA Cyber Security Conference – November 10-11, 2017 @NTXISSA #NTXISSACSC5 Getting Started - ps 24
  25. 25. NTXISSA Cyber Security Conference – November 10-11, 2017 @NTXISSA #NTXISSACSC5 More Commands 25 • who • last • sed • awk • grep • sort • uniq • wc • Who is logged in (who –u; who –b) • List of users who have logged in • Stream editor (sed –e ‘s/son/sen/g’) • Text processing tool • Regular expression seach • Sort input • Remove duplicates from input • Word or letter count
  26. 26. NTXISSA Cyber Security Conference – November 10-11, 2017 @NTXISSA #NTXISSACSC5 More Commands - who • who 26
  27. 27. NTXISSA Cyber Security Conference – November 10-11, 2017 @NTXISSA #NTXISSACSC5 More commands - last • Last 27
  28. 28. NTXISSA Cyber Security Conference – November 10-11, 2017 @NTXISSA #NTXISSACSC5 More commands - sed • sed 28
  29. 29. NTXISSA Cyber Security Conference – November 10-11, 2017 @NTXISSA #NTXISSACSC5 More commands - awk • Awk 29
  30. 30. NTXISSA Cyber Security Conference – November 10-11, 2017 @NTXISSA #NTXISSACSC5 More commands - grep • grep 30
  31. 31. NTXISSA Cyber Security Conference – November 10-11, 2017 @NTXISSA #NTXISSACSC5 More commands • Putting the commands together 31
  32. 32. NTXISSA Cyber Security Conference – November 10-11, 2017 @NTXISSA #NTXISSACSC5 More commands 32
  33. 33. NTXISSA Cyber Security Conference – November 10-11, 2017 @NTXISSA #NTXISSACSC5 More commands 33
  34. 34. NTXISSA Cyber Security Conference – November 10-11, 2017 @NTXISSA #NTXISSACSC5 More commands 34
  35. 35. NTXISSA Cyber Security Conference – November 10-11, 2017 @NTXISSA #NTXISSACSC5 More commands 35
  36. 36. NTXISSA Cyber Security Conference – November 10-11, 2017 @NTXISSA #NTXISSACSC5 More commands 36
  37. 37. NTXISSA Cyber Security Conference – November 10-11, 2017 @NTXISSA #NTXISSACSC5 More commands 37
  38. 38. NTXISSA Cyber Security Conference – November 10-11, 2017 @NTXISSA #NTXISSACSC5 More commands 38
  39. 39. NTXISSA Cyber Security Conference – November 10-11, 2017 @NTXISSA #NTXISSACSC5 More commands 39
  40. 40. NTXISSA Cyber Security Conference – November 10-11, 2017 @NTXISSA #NTXISSACSC5 More commands 40 • There is so much more that we could cover
  41. 41. NTXISSA Cyber Security Conference – November 10-11, 2017 @NTXISSA #NTXISSACSC5 More Information • Linux.org • Redhat.com • Fedoraproject.org • Kali.org • Raspberrypi.org • Hackersforcharity.org 41
  42. 42. NTXISSA Cyber Security Conference – November 10-11, 2017 @NTXISSA #NTXISSACSC5 Linux in an Hour • Linux System Requirements: • Any INTEL or AMD processor (2GHZ dual core processor or better recommended) • 1GB RAM (2GB recommended) • 15GB of disk (20GB recommended by Mint, 40 GB recommended by ME) • DVD drive or USB port to boot a live version or install to disk • 1024 x 768 resolution monitor 42
  43. 43. NTXISSA Cyber Security Conference – November 10-11, 2017 @NTXISSA #NTXISSACSC5 Linux Distributions 43
  44. 44. NTXISSA Cyber Security Conference – November 10-11, 2017 @NTXISSA #NTXISSACSC5 Linux Distributions 44 • Ubuntu: https://Ubuntu.com • Elementary: https://elementary.io • Fedora: https://getfedora.org • Kali: https://kali.org
  45. 45. NTXISSA Cyber Security Conference – November 10-11, 2017 @NTXISSA #NTXISSACSC5 Questions? 45
  46. 46. NTXISSA Cyber Security Conference – November 10-11, 2017 @NTXISSA #NTXISSACSC5 There is always a test! 46
  47. 47. NTXISSA Cyber Security Conference – November 10-11, 2017 @NTXISSA #NTXISSACSC5 What did you learn? • What did you learn today? • What are you going to do about it? • Do you have questions? • If you don’t, you probably weren’t listening • FIND the answer to those questions! 47
  48. 48. NTXISSA Cyber Security Conference – November 10-11, 2017 @NTXISSA #NTXISSACSC5 Linux in an Hour • Bill Petersen • Principal Information Security Analyst at Heartland, a Global Payments company • Bamsco.Consulting@gmail.com • 972-523-9425 • Want to learn more? Call or email me. We can setup one-on-one or team trainings. 8 hours to 8 days! I can customize a class for you. • Linux is fun. Learn it. Share it. • Grow your knowledge and skills! 48
  49. 49. NTXISSA Cyber Security Conference – November 10-11, 2017 @NTXISSA #NTXISSACSC5 49 Thank you

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