DNS is the backbone of both on-premises and hybrid infrastructures — yet the core concepts are often overlooked or under-taught. When something breaks, it often comes down to one of two things: DNS or the firewall.

In this foundational session, we’ll revisit the essential DNS principles every IT professional must understand. From name resolution and record types to troubleshooting and hybrid integration scenarios, you’ll gain the practical knowledge needed to confidently diagnose and resolve DNS-related issues.

Whether you’re managing Active Directory, hybrid cloud connectivity, or modern applications, a solid DNS foundation is critical to maintaining stability and performance.

You will learn:

• How DNS works at a fundamental level (resolution process, zones, record types, caching)
• The role of DNS in Active Directory and hybrid cloud environments
• Common DNS misconfigurations and how to troubleshoot them effectively
• How to systematically determine whether the problem is DNS, the firewall, or something else