tutorials

NK2 – migration of contact suggestion in Outlook

Before uninstall open the current nk2 file with https://www.nirsoft.net/utils/outlook_nk2_edit.html, Create the backup (save as) of nk2 file. When you upgrade to Outlook 2010, Outlook 2013, or Outlook 2016, the nk2 file is automatically imported the first time you start Outlook, but sometimes it do not work. When you create a new Outlook mail profile or […]

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ISP Config – mTLS – website certificate protection

This solution uses Let’s Encrypt as the certificate provider for the website and custom certificates for mTLS authentication. Connect to the ISP Config server and prepare certificates Generate CA certificate Generate client certificate Export client certificate After export, you need to import the certificate into your OS system. Copy CA certificate to the website folder

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Migrate Microsoft domain controller (DC)

Upgrading your Active Directory infrastructure isn’t a trivial task—but by following Microsoft’s recommended approach, you can migrate Domain Controllers (DCs) smoothly and securely. Here’s a clean, step-by-step guide to help you transition from Windows Server 2012 R2 DCs to fresh 2019 servers with minimal downtime. 1. Verify and Clean Up Current Environment 2. Stand Up a New

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