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

gpedit.msc

Using Windows 10 Home? Use this script to install gpedit.msc:
https://www.majorgeeks.com/content/page/enable_group_policy_editor_in_windows_10_home_edition.html

Administrators

Power Users

Users

Guests

lusrmgr.msc

Using Windows 10 Home? This snap-in won’t work on that version.

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 <username> <filename>
or
chown <username>:<groupname> <filename>

chmod 755 <filename>
or
chmod +x <filename>

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