Automation and management

Red Hat Developer Hub image
Article

Performance and load testing in Identity Management (IdM) systems using encrypted DNS (eDNS)

Josep Andreu Font +1

This article compares the performance of UDP, TCP, and DoT for DNS traffic in an Identity Management (IdM) environment under sustained high load. We explore a stress scenario with a standard client generating over 1,000 DNS queries per second against an IdM DNS server, and assess the impact of encryption on DNS performance.

Better front-end Developer Experience
Article

Our top articles for developers in 2025

Colleen Lobner

Take a look back at Red Hat Developer's most popular articles of 2025, covering AI coding practices, agentic systems, advanced Linux networking, and more.