Windows Server Core – Command Line Only Administration

Mastering Windows Server Core with Command Line Power

Windows Server Core 2022 strips the GUI fat, leaving a lean, mean machine that thrives on command-line control—and in 2025, it’s your ticket to lightweight, secure server management. This guide’s your deep dive into running Server Core like a pro, from setup to daily ops, role installs, remote tricks, and troubleshooting—all via PowerShell and CMD. Whether you’re an IT vet slashing overhead or a newbie embracing the CLI life, it’s packed with gritty scripts, step-by-step flows, and real-world fixes. From bare-metal boots to domain joins, this is your Server Core playbook—rugged, detailed, and all-in.

Step 1: Install Server Core

Grab the Goods: Snag the Server 2022 ISO from Microsoft Volume Licensing or eval center. Burn it to USB with Rufus—pick “Windows Server 2022 Core” at setup. No GUI fluff here, just the essentials.

Boot and Deploy: Plug in, boot, and mash through the installer—language, time zone, then “Install Now.” Choose “Windows Server 2022 Standard (Core)” or Datacenter—your call. Partition your drive, let it rip (10-20 mins on SSD), and reboot. You’ll land at a stark CMD prompt: sconfig is your first friend.

Step 2: Initial Config

Set Admin Password: At the CMD prompt, type sconfig, hit 2, and punch in a password—make it brutal (e.g., “S3rv3rC0r3!”). Exit with 15.

Network Setup: Back in sconfig, hit 8. Pick your NIC (usually “1”), set static IP if needed:

netsh interface ipv4 set address name="Ethernet0" static 192.168.1.10 255.255.255.0 192.168.1.1

DNS too:

netsh interface ipv4 set dns name="Ethernet0" static 8.8.8.8

Ping google.com to test—works? You’re online.

Name It: In sconfig, hit 1, set a hostname (e.g., “CoreDC01”), reboot with shutdown /r.

Step 3: Add Roles and Features

PowerShell Time: From CMD, type powershell. Install AD DS for a DC:

Install-WindowsFeature -Name AD-Domain-Services -IncludeManagementTools

Promote to DC (swap “domain.local” for yours):

Install-ADDSForest -DomainName "domain.local" -InstallDns -SafeModeAdministratorPassword (ConvertTo-SecureString "S3rv3rC0r3!" -AsPlainText -Force) -Force

Reboots after—takes 5-10 mins. Hyper-V’s another beast:

Install-WindowsFeature -Name Hyper-V -IncludeManagementTools -Restart

Check It: List roles:

Get-WindowsFeature | Where-Object {$_.InstallState -eq "Installed"}

Step 4: Daily Ops

Updates: Force updates:

Install-Module PSWindowsUpdate -Force; Import-Module PSWindowsUpdate; Get-WUInstall -AcceptAll -AutoReboot

User Add: Drop a local user:

net user "techy" "P@ssw0rd123" /add; net localgroup "Administrators" "techy" /add

Disk Check: Scope drives:

Get-Disk | Select-Object Number,FriendlyName,PartitionStyle,Size

Step 5: Remote Management

Enable Remote: From PowerShell:

Enable-PSRemoting -Force; Set-NetFirewallRule -Name "WINRM-HTTP-In-TCP" -Enabled True

From another PC (with RSAT), connect:

Enter-PSSession -ComputerName "CoreDC01" -Credential (Get-Credential)

MMC Snap-In: On a GUI box, run “mmc,” add “Computer Management,” target “CoreDC01”—old-school but works.

Troubleshooting

No Network: Probe NICs:

Get-NetAdapter | Select-Object Name,Status,LinkSpeed

Reset with netsh winsock reset if borked. Role Fail: Check logs:

Get-EventLog -LogName "System" | Where-Object {$_.Source -eq "Service Control Manager"} | Select-Object -First 10

Stuck Prompt: Kill with Ctrl+C, restart with shutdown /r.

Best Practices

• Patch Hard: Monthly updates via Get-WUInstall—no slackers.
• Backup: Use wbadmin—schedule daily system state dumps.
• Lean: Skip GUI tools locally—PowerShell’s your razor.
• Log It: Pipe output to files: Get-Service | Out-File "C:\Logs\services.txt"

FAQ

Q: Why Core over GUI? A: Less attack surface, lower RAM—GUI’s a hog.

Q: Remote GUI possible? A: Nope—use RSAT or PowerShell remoting, Core’s CLI-only.

Q: Stuck in CMD? A: Type powershell—it’s there, just hidden.

Q: Roll back a role? A: Uninstall with:

Remove-WindowsFeature -Name "AD-Domain-Services"

Glossary

• Server Core: GUI-less Windows Server—lean and mean.
• AD DS: Active Directory Domain Services—identity king.
• PSRemoting: PowerShell’s remote control—CLI over network.
• Sconfig: Server Core’s quick-config lifeline.

About The Author

Andrew Armstrong

Andrew Armstrong is a UK-based IT professional with 26+ years of hands-on experience in Windows, Windows Server, SCCM/ConfigMgr, Active Directory, PowerShell, and enterprise infrastructure. He founded TechyGeeksHome in 2010 and has published over 1,500 practical guides covering real-world IT problems and solutions. When not solving IT problems, Andrew develops free Windows utilities including Ultimate Settings Panel, which has been downloaded over 850,000 times.

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