19-22 March
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Thursday, March 21 • 11:55 - 12:30
Stop Leaking Kubernetes Service Information via DNS! - John Belamaric, Google & Yong Tang, Ivanti

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Most Kubernetes distributions implement role-based access control (RBAC) to keep nosy users from poking around in other people’s applications. Well, maybe for more serious reasons than that, since a fundamental principle of security is keeping information “need to know”. What cluster administrators may not realize is that even when visibility is tightly restricted by RBAC in the Kubernetes API, it is completely unrestricted in DNS! By default, the Kubernetes DNS specification exposes all services to all clients via DNS. In this talk, you will learn how to use CoreDNS to fix that…and why you may not want to!

avatar for Yong Tang

Yong Tang

Senior Director of Engineering, Ivanti
Yong Tang is Senior Director of Engineering at Ivanti. He is a core maintainer of CoreDNS and contributes to many container, cloud-native, and machine learning projects for the open source community. In addition to CoreDNS, he is a maintainer of Docker/Moby. He is also a maintainer... Read More →
avatar for John Belamaric

John Belamaric

Sr Staff Software Engineer, Google
John is a Sr Staff SWE, and a co-chair of Kubernetes SIG Architecture, leading efforts on production readiness, conformance, and software architecture. He is co-founder of Nephio, an LF project for K8s-based automation of large scale telco edge deployments, and a maintainer of CoreDNS... Read More →

Thursday March 21, 2024 11:55 - 12:30 CET
Pavilion 7 | Level 7.1 | Room D
  • Content Experience Level Beginner
  • Presentation Slides Attached Yes