Understanding Azure Communication Services SMS Azure Communication Services (ACS) SMS delivery failures stem from toll-free verification requirements, carrier filtering, opt-out management, and number capability mismatches. This guide covers every failure scenario and resolution. Why This Problem Matters in Production In…
Month: December 2025
How to harden security of Azure Data Factory
Hardening Data Factory Protects Your Data Pipelines Azure Data Factory orchestrates data movement and transformation across cloud and on-premises data stores. A compromised Data Factory instance can exfiltrate data from production databases, inject malicious transformations, or pivot to connected systems…
How to fix Azure SQL firewall blocking client connections
Understanding Azure SQL Firewall Rules Azure SQL Database blocks all external connections by default. Every connection attempt is evaluated against firewall rules configured at the server and database level. When a client connection is blocked, you see an error like:…
How to Resolve Azure Private Endpoint DNS Resolution Issues
Understanding Private Endpoint DNS Resolution Azure Private Endpoints give your VNet a private IP address for an Azure service, but they only work when DNS resolves the service’s public FQDN to the private IP. Misconfigured DNS is the number one…