Ask an OpenShift Admin (Ep 23): DNS and cluster networking

DNS forms the backbone of service discovery, both internally and externally, with OpenShift. Did you know OpenShift has separate DNS for Pods and nodes? This episode we’re joined by Christian Hernandez, DNS expert and Technical Marketing Manager for OpenShift, to talk about how DNS is used and configured for both Pods and nodes in the cluster. We’ll also discuss external DNS requirements for connecting to applications hosted by OpenShift. About Ask an OpenShift Admin: Do you have questions? We want to answer them! Every Wednesday at 11am ET, hosts Andrew Sullivan and Chris Short sit down to answer your questions about Red Hat OpenShift. Follow us: Andrew Sullivan   / practicalandrew   Chris Short   / chrisshort   Christian Hernandez   / christianh814   Subscribe to Red Hat's YouTube channel: https://www.youtube.com/redhat/?sub_c... About OpenShift: Red Hat OpenShift is an open source container application platform based on the Kubernetes container orchestrator for enterprise application development and deployment. Openshift.com https://red.ht/33Fh6uV OpenShift on github https://github.com/openshift/ OpenShift on redhat.com https://red.ht/2o4ccDk #RedHat #OpenShift #Kubernetes

Ask an OpenShift Admin (Ep 24): CNI plugins and Multus
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Ask an OpenShift Admin (Ep 24): CNI plugins and Multus

Using and configuring DNS servers in Linux
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Using and configuring DNS servers in Linux

Ask an OpenShift Admin (Ep 63) | Recover control plane nodes and deploy custom Grafana
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Ask an OpenShift Admin (Ep 63) | Recover control plane nodes and deploy custom Grafana

Ask an OpenShift Admin (Ep 60) | NMstate and MetalLB L3
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Ask an OpenShift Admin (Ep 60) | NMstate and MetalLB L3

STOP Everything! Linux Users NEED to See This NOW!
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STOP Everything! Linux Users NEED to See This NOW!

CloudCasa DR: Protecting OpenShift Workloads | Ask an OpenShift Expert 178
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CloudCasa DR: Protecting OpenShift Workloads | Ask an OpenShift Expert 178

Ask an OpenShift Admin (E71) | External-DNS and Certificate Management
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Ask an OpenShift Admin (E71) | External-DNS and Certificate Management

Ask an OpenShift Admin (Ep 85) | New and Improved Pod Autoscaling
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Ask an OpenShift Admin (Ep 85) | New and Improved Pod Autoscaling

Complete Terraform Course - From BEGINNER to PRO! (Learn Infrastructure as Code)
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Complete Terraform Course - From BEGINNER to PRO! (Learn Infrastructure as Code)

Day 31/40 - Understanding CoreDNS In Kubernetes
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Day 31/40 - Understanding CoreDNS In Kubernetes

Ask an OpenShift Admin (E97) | Control Plane Machine Sets; Infra node management
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Ask an OpenShift Admin (E97) | Control Plane Machine Sets; Infra node management

Crash Course, Active Directory, DHCP & DNS for Entry Level Tech Support
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Crash Course, Active Directory, DHCP & DNS for Entry Level Tech Support

Billionaire's WARNING: I'm SELLING. The Crash Is Already Here!
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Billionaire's WARNING: I'm SELLING. The Crash Is Already Here!

OVN-Kubernetes The new default CNI of OpenShift
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OVN-Kubernetes The new default CNI of OpenShift

Ask an OpenShift Admin (E96) | Disaster recovery via etcd restore
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Ask an OpenShift Admin (E96) | Disaster recovery via etcd restore

Keynote: After the AI Hype – What’s Real, and What’s Next - Richard Campbell - 2026
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Keynote: After the AI Hype – What’s Real, and What’s Next - Richard Campbell - 2026

OpenShift Commons: MetalLB, Kubernetes Bare Metal Load Balancing with Federico Paolinelli (Red Hat)
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OpenShift Commons: MetalLB, Kubernetes Bare Metal Load Balancing with Federico Paolinelli (Red Hat)

RL for Agents Workshop - Deep Dive on Training Agents with RL and Open Source
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RL for Agents Workshop - Deep Dive on Training Agents with RL and Open Source

How to install OpenShift 4 on Bare Metal - User Provisioned Infrastructure (UPI)
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How to install OpenShift 4 on Bare Metal - User Provisioned Infrastructure (UPI)

Kubernetes Services explained | ClusterIP vs NodePort vs LoadBalancer vs Headless Service
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Kubernetes Services explained | ClusterIP vs NodePort vs LoadBalancer vs Headless Service