What Is an SSL Certificate Chain?
Learn how an SSL certificate chain links your site certificate to a trusted root, why intermediates matter, and how to find and fix an incomplete chain.
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Differences Between A and CNAME Records
Learn the difference between A and CNAME DNS records, when to use each, why CNAME fails at the root, and how to test your records safely.
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How Do I Restart IIS via Command Prompt?
Restart IIS from an elevated Command Prompt, verify W3SVC, understand why Microsoft prefers NET STOP and NET START, and limit downtime.
