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Crash Course, Active Directory, DHCP & DNS for Entry Level Tech Support

cobuman・69 minutes read

The session focuses on Microsoft Windows Server OS from a tech support perspective, covering Active Directory Users and Computers, DHCP, and DNS, with instructions on adding computers to the domain, managing users, DHCP reservations, and DNS configuration for efficient network operations. Properly configuring DNS, DHCP scopes, and managing group policy objects are crucial for network operations, alongside adding computers to domains, user management, and troubleshooting DNS issues for seamless network connectivity.

Insights

Active Directory Users and Computers (AD) serves as a directory listing users and computers within a domain, enabling control, management, security, and network location functions.
Proper DNS configuration is essential for successfully adding computers to a domain, simplifying network access and enabling Remote Desktop Protocol (RDP) connections within a local network.

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Recent questions

What is Active Directory Users and Computers (AD)?
Active Directory Users and Computers (AD) is a directory that lists users and computers within a domain, allowing for control, management, security, and network location purposes.
How can a computer be added to a domain?
A computer can be added to a domain by using Windows Administrative Tools or by joining the computer to the domain directly, involving changing the computer name and adding it to the domain using administrator credentials.
Why is proper DNS configuration crucial for adding computers to a domain?
Proper DNS configuration is crucial for adding computers to a domain successfully because it ensures that the devices can communicate effectively within the network by translating domain names to IP addresses.
What is the purpose of DHCP scopes?
DHCP scopes define IP address ranges for distribution to devices connecting to the server, ensuring that each device receives a unique IP address within the specified range.
How does DNS simplify accessing websites?
DNS simplifies accessing websites by translating domain names to IP addresses, allowing computers to locate and connect to websites without needing to remember complex numerical IP addresses.

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Summary

00:00

"Windows Server Tech Support Essentials"

The session focuses on Microsoft Windows Server operating system from a tech support perspective.
The content will be divided into three parts: Active Directory Users and Computers (AD), DHCP, and DNS.
To access the server remotely, Windows Administrative Tools need to be installed on the Windows 10 machine.
Active Directory Users and Computers (AD) is likened to a directory listing users and computers within a domain.
Within AD, computers can be added to the domain for control, management, security, and network location purposes.
To add a computer to the domain, it can be done through Windows Administrative Tools or by joining the computer to the domain directly.
Joining a computer to the domain involves changing the computer name and adding it to the domain using administrator credentials.
After joining the domain, a computer needs to be restarted for the changes to take effect.
Checking the computer's status post-reboot involves verifying the DNS settings and domain membership through command line and system properties.
Proper DNS configuration is crucial for adding computers to the domain successfully.

16:17

"Managing Computer Network: Tips and Tricks"

The device name is work001.newdomain.com after joining a new domain, recognized as such on the network.
Accessing advanced system settings reveals the applied computer name change to work001.newdomain.com.
Adding a new computer to the domain can be done without pre-creating a hostname, as demonstrated live.
Managing a remote computer is possible by right-clicking and selecting "manage," allowing various actions like viewing Event Viewer logs.
Computer management tools like Event Viewer and Disk Management can be accessed remotely for troubleshooting.
Setting up group policy objects controls computer permissions, including restrictions and software deployment.
Adding a computer to a specific group policy object, like HR, can enforce rules or install designated software.
Removing a computer from a domain changes its status to offline, visible in Active Directory, indicating disconnection.
Rejoining a domain with a different computer name, like work002.newdomain.com, is possible without pre-creating the hostname.
Creating a new user with administrator privileges, like "Coboman," and organizing it within a specific OU, such as tech support, ensures proper access control.

31:59

Granting Administrator Privileges in Tech Support OU

To organize, right-click on the bottom and select "move," then add the main controller to the Tech Support OU.
In the Tech Support group, there's a security group granting administrator privileges.
To grant administrator access, add Tech Support in the member off properties of Cobo man.
Without security groups, manually add Cobo man to the local administrator group on the computer.
Replicating the security group action at the local level is crucial for granting administrator privileges.
Remotely manage the computer through the server to add people to the administrators group.
Add the Tech Support Security Group to the administrators group to grant administrator privileges.
Tech Support Security Group automatically adds members like Cobo man for administrator access.
DHCP scopes define IP address ranges for distribution to devices connecting to the server.
Reservations in DHCP assign specific IP addresses based on MAC addresses for devices connecting to the server.

49:15

Managing MAC and IP Addresses in Networks

MAC address, also known as a physical address, is unique to each computer's network adapter.
DHCP server assigns specific IP addresses based on MAC addresses.
Reserving IP addresses for devices like printers involves matching MAC addresses to specific IPs.
Adding reservations in DHCP manager involves naming, assigning IPs, and inputting MAC addresses.
Example: Reserving an IP address for a printer using its MAC address.
Organizing reserved IP addresses within a specific range for better management.
DNS simplifies accessing websites by translating domain names to IP addresses.
DNS servers provide information on domain locations to computers.
Changing DNS server settings can resolve DNS issues by specifying preferred DNS servers.
Adjusting network adapter settings allows for custom DNS server configurations.

01:07:16

"Crucial DNS Setup for Network Connectivity"

Preferred DNS and alternative DNS servers are crucial for routing internet traffic to specific websites like google.com, yahoo.com, and youtube.com, with Google hosting these DNS servers.
Local servers for a company require similar DNS setup for computer names on the local network, with a DNS server like newdomain.com handling this.
Accessing computers on a local network is simplified by DNS, eliminating the need to remember IP addresses and allowing direct access using computer names.
DNS setup is essential for Remote Desktop Protocol (RDP) connections, enabling easy access to computers within a network.
DNS management within Active Directory involves creating A records to forward computer names to their respective IP addresses, ensuring seamless network connectivity.
A records are also vital for websites, where DNS providers help in linking domain names to web server IP addresses.
Manually adding A records may be necessary for devices like printers with static IP addresses, ensuring proper network connectivity.
Troubleshooting DNS issues may involve checking for duplicate records, deleting outdated entries, and flushing DNS to refresh records for seamless network access.
Understanding forward and reverse lookup zones within DNS is crucial for resolving DNS-related issues and ensuring smooth network operations in a company setting.

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