Name: Dig Smart: Building a Reliable Cloud Native DNS for Modern Networks - Joel Studler & Fabian Schulz, Swisscom
Start: 2025-08-25T11:20:00+0200
End: 2025-08-25T12:00:00+0200

25-27, August 2025
Amsterdam, Netherlands
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Note: The schedule is subject to change.

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IMPORTANT NOTE: Timing of sessions and room locations are subject to change.

Monday August 25, 2025 11:20 - 12:00 CEST

Emerald Room

Join us for a tech talk where we'll demonstrate how we operate and automate a highly available, geo-redundant DNS service for Swisscom's 5G mobile network using a cloud-native tech stack. We'll provide an in-depth look into our multi-cluster architecture that leverages ExternalDNS, PowerDNS, and CoreDNS. Additionally, we'll showcase how the system behaves when a cluster breaks down, and how we monitor and troubleshoot this multi-cluster setup at scale.

This talk will be particularly interesting for those with demanding DNS requirements—such as applications which require rare DNS resource records like NAPTR—as well as engineers and architects tasked with building a DNS service using cloud-native tools who, due to compliance, governance, or availability concerns, cannot use publicly available DNS-as-a-service offerings.

Speakers

Fabian Schulz

Senior DevOps Engineer, Swisscom

Fabian Schulz is a cloud architect and Kubernetes specialist known for his expertise in building resilient cloud-native solutions. Currently at Swisscom, he focuses on designing next generation 5G core services using open-source technologies. With a passion for innovation, Fabian... Read More →

Joel Studler

DevOps Engineer and System Architect, Swisscom

Joel is a DevOps Engineer currently in a team that builds the cloud native 5G core at Swisscom. He is experienced in infrastructure automation, software defined networking and highly available databases and passionate about automation. He is CK* certified and has written several CRD/Operator... Read More →

Monday August 25, 2025 11:20 - 12:00 CEST
Emerald Room

Cloud & Containers

Audience Experience Level Any

Open Source Summit Europe 2025

Fabian Schulz

Joel Studler

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