A+ 220-1001: Day 8: Users, Permissions and System Management

  1. A+ Certification
  2. A+ 220-1001: Day 1: Intro, Resources & the Test
  3. A+ 220-1001: Day 2: CPUs
  4. A+ 220-1001: Day 3: RAM
  5. A+ 220-1001: Day 4: Firmware, Motherboards & Power Supplies
  6. A+ 220-1001: Day 5: Disks & Mass Storage
  7. A+ 220-1001: Day 6: Peripherals & PC Builds
  8. A+ 220-1001: Day 7: OS Operations, User Management & OS Maintenance
  9. A+ 220-1001: Day 8: Users, Permissions and System Management
  10. A+ 220-1002: Day 9: The Command Line & OS Troubleshooting
  11. A+ 220-1002: Day 10: Displays & Networking Basics
  12. A+ 220-1002: Day 11: LANs: Ethernet & WiFi
  13. A+ 220-1002: Day 12: The Internet & Virtualization
  14. A+ 220-1002: Day 13: Portable & Mobile Computing
  15. A+ 220-1002: Day 14: Mobile Administration & Printing
  16. A+ 220-1002: Day 15: Security & Operations
  17. A+ 220-1002: Day 16: Review & Test Preparation

Last Day of 220-1001

Managing Users and Permissions

root (Linux) == System (Windows)

Authentication and Authorization

NIST Digital Identity Guidelines –
https://pages.nist.gov/800-63-3/sp800-63b.html

On Password Complexity: Sorry! –
https://gizmodo.com/the-guy-who-invented-those-annoying-password-rules-now-1797643987

Windows Groups

Administrators

Power Users

Users

Guests

lusermgr.msc

NTFS Permissions

Folders vs Files

Full Control

Modify

Read & Execute

List Folder Contents (folders only)

Read

Write

Inheritance

Linux & Mac Permissions

User, Group and Other (World)

r = 4
w = 2
x = 1

To see U, G and O permissions:

ls -la

Changing ownership (User or Group), and changing permissions (access mode)

chown

chmod

Sharing Folders (Windows)

Sharing tab (NetBIOS sharing)

Security tab (NTFS sharing)

The Sharing Wizard

Administrative Shares

Encryption (Windows)

EFS (for one folder)

Bitlocker (for the whole hard drive)

Truecrypt –> Defunct and Gone!

Security Policy (Windows)

Runline: secpol.msc

–> You may need to enable this utility, if you’re using Windows 10 Home. See this page: https://www.majorgeeks.com/content/page/how_to_enable_local_security_policy_in_windows_10_home.html

Windows User Account Control

UAC

Vista – On or Off

Win 7 – 4 levels – default is the second-from-top option

OS Maintenance

Patches, Updates, Service Packs

Windows Disk Maintenance

Scandisk was used in DOS, Win 95, Win 98, Win ME — BUT IS NOT USED ANY MORE! If you see scandisk as an answer it’s a decoy (red herring).

scandisk

Chkdsk (“Check Disk”) is used in all modern versions of Windows.

chkdsk

Disk Defragmenter – Win 7

defrag

Optimize drives – Win 8 and later

macOS Disk Maintenance

Disk Utility

Linux Disk Maintenance

fsck

Scheduling Tasks

Windows: Task Scheduler

Linux Task Scheduling

# Run a job on a regular, repeating cycle:
cron 
# Run a job once at a specific time:
at

macOS Task Scheduling

launchd

Backups

Backup and Restore – Win 7

ntbackup

File History – Win 8/10

Time Machine – Mac

Amanda and Backula – Linux

Software Installation

Microsoft Store

macOS App Store

Linux App Installation:

# On Debian-based OSs:
apt
# On RedHat-based OSs:
yum

Device Manager

Access it from:

Control Panel –> Device Manager

or

Runline –> Device Manager

or

Computer Management console –> Device Manager

Performance Options

Windows Performance Monitor

Runline: perfmon

Sysinternals Task Manager

Runline: procmon

Textbook Time

Chapters 13 and 14