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Vitalii Shumylo

IT instructor. I teach Windows Server, Active Directory, Linux and PKI with hands-on labs. My lab scripts are on GitHub: vitalii-shumylo/it-lab-scripts. Posts here are short teasers, written with AI a

Joined on Oct 22, 2026 https://learnitlessons.com

Vitalii Shumylo

Nov 10

Ansible cannot find your new role: where roles must live and how to create one

#ansible #devops #linux #automation

2 min read

Vitalii Shumylo

Nov 6

Each user sees a different kiosk desktop: user GPOs follow the account, not the PC

#activedirectory #grouppolicy #windows #sysadmin

2 min read

Vitalii Shumylo

Nov 3

DHCP failover is up, but only half the clients see your new setting

#windowsserver #dhcp #powershell #sysadmin

2 min read

Vitalii Shumylo

Oct 30

A deleted AD user came back without its groups: the Recycle Bin was off

#activedirectory #powershell #windows #sysadmin

1 min read

Vitalii Shumylo

Oct 22

Promoting a domain controller with PowerShell: the short version

#powershell #windowsserver #activedirectory #sysadmin

1 min read

Vitalii Shumylo

Oct 22

Kerberoasting in plain words: find your exposed service accounts

#security #activedirectory #windowsserver #powershell

1 min read

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