Microsoft Windows Server Operating System - Tech Support Session

Introduction

• Presenter: Irvin (cobumen)
• Focus: Microsoft Windows Server OS from a tech support perspective
• Structure: 3-part series
  • Part 1: Active Directory Users and Computers (ADUC)
  • Part 2: DHCP (Dynamic Host Configuration Protocol)
  • Part 3: DNS (Domain Name System)

Active Directory Users and Computers (ADUC)

• What is AD?
  • Directory service that provides a list of users and computers in a network (like a phone book)
  • Allows management and control of network resources.

Accessing ADUC

• Use Windows Administrative Tools to remotely access ADUC from a Windows 10 machine.
  • Installation: Search for "Remote Server Administration Tools for Windows 10" on Google.
  • Follow installation prompts to set up the tools.

Setting Up Computers in AD

1. Creating a new computer in AD

   • Navigate to Computers folder in ADUC.
   • Right-click and select "New Computer".
   • Assign a name (e.g., work-0001).

2. Joining a Windows 10 machine to AD

   • Change computer settings in Windows 10:
     • Access System Properties > Computer Name > Change.
     • Enter the domain name (e.g., newdomain.com).
     • Provide administrator credentials to join the domain.
   • Reboot the computer for changes to take effect.

3. Verifying the addition of the computer

   • Use Command Prompt: ipconfig /all to check if the computer is now within the domain (look for the Primary DNS suffix).
   • Confirm in ADUC that the computer appears correctly.

Group Policy Objects (GPOs)

• Used to manage permissions and software deployments across computers in the domain.
• Example: Adding a computer to a security group (e.g., HR).
• Changes in user roles/permissions replicate across the domain automatically once set up correctly.

Managing Computers Remotely

• Right-click on a computer in ADUC and select "Manage" to access various management tools (Device Manager, Event Viewer, etc.).
• Group Policy can enforce security settings and software installations for users in the group.

Removing a Computer from the Domain

• Can be done from the affected computer:
  • Change settings to "Workgroup".
  • Reboot and verify removal in ADUC.

DHCP Overview

• Dynamic Host Configuration Protocol
  • Manages IP address allocation and configuration settings for devices on the network.

Setting Up DHCP Scopes

1. Define a new scope in DHCP settings that specifies a range of IP addresses for distribution.
2. Create reservations for specific IP addresses based on MAC addresses.
   • Important for printers and devices that need consistent IP addresses.

Managing IP Address Leases

• Understand the difference between dynamic leases and reservations:
  • Dynamic leases: Assigned temporarily and can be reassigned.
  • Reservations: Permanently assigned based on MAC address.
• Know when it's appropriate to delete dynamic leases to resolve connection issues.

DNS Overview

• Domain Name System
  • Resolves human-readable domain names (e.g., google.com) to IP addresses.
• Essential for local networks to facilitate communication without needing to remember IP addresses.

Configuring DNS Settings

• Using ipconfig /all to check DNS configurations.
• Changing DNS server settings in network adapter properties if needed.

DNS Records and Management

1. Understand A records (address records) that link hostnames to IP addresses.
2. Reverse lookup zones allow you to find hostnames based on IP addresses.
3. Filtering in DNS Manager helps to locate specific records quickly.

Troubleshooting DNS Issues

• If you encounter connectivity problems, use ipconfig /flushdns to refresh local DNS cache.
• Ensure correct records are in place and duplicates are avoided.

Conclusion

• Final Q&A session and request for feedback on future content.
• Reminder to comment or subscribe for more sessions.