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Kubernetes 1.26 on Ubuntu 22.04 LTS

Kubernetes 1.26 on Ubuntu 22.04 LTS

Ubuntu is a very suitable distribution to run kubernetes because we have an up to date kernel with up to date features and packages are available widely. Running kubernetes on Ubuntu is straight forward - except it requires packages that are newer than the upstream provides. This is the case

Daniel Nachtrub
Daniel Nachtrub
openvpn 2.6.0 released

openvpn 2.6.0 released

The new openvpn 2.6.0 has some very nice and shiny features you might want to starting using soon. This post highlights some of them.

Daniel Nachtrub
Daniel Nachtrub
Linux
Create a TPM backed certificate request (on windows)

Create a TPM backed certificate request (on windows)

Certificates are everywhere - sometimes you want to keep them even more secure than just on the filesystem (or operating system store). This guide shows how to create TPM backed certificates on windows.

Daniel Nachtrub
Daniel Nachtrub
Windows
Windows 11 22H2 - stuck RDP session establishment when using UDP transport

Windows 11 22H2 - stuck RDP session establishment when using UDP transport

Windows 11 22H2 currently has an issue when connecting using the Remote Desktop gateway or Remote Desktop Connection Broker. This article gives some information and possible workarounds.

Daniel Nachtrub
Daniel Nachtrub
Windows
"Identity not found" when using Azure pod-managed identities

"Identity not found" when using Azure pod-managed identities

One type of incident that arised on several customer environments within the last weeks has been the result of an issue with Azure pod-managed identities. What is managed podidentity? The idea behind podidentity is that you can assign an identity (mostly a managed service identity [MSI]) to a pod running

Daniel Nachtrub
Daniel Nachtrub
What happens if you ask kubernetes for 1254051 replicas

What happens if you ask kubernetes for 1254051 replicas

One of our playgrounds recently had an incident which caused control-plane to go out-of-memory. This article shows how to diagnose and especially how to fix or event prevent this.

Daniel Nachtrub
Daniel Nachtrub
Kubernetes
Kubernetes Cluster & self-hosted Registry: Trusting the CA

Kubernetes Cluster & self-hosted Registry: Trusting the CA

You build your OnPremise Kubernetes Cluster and set up your self-hosted private registry. To make it pretty you used your own CA to sign the certificate for the registry. Everything is fine and now you are ready to deploy your own services to your Kubernetes Cluster and develop some awesome

Sebastian Augustin
Sebastian Augustin
Kubernetes
Running postgres in kubernetes with hugepages

Running postgres in kubernetes with hugepages

To run postgres in a container on nodes with huge pages enabled requires you to configure the container accordingly. This post shows how to do this on kubernetes/openshift.

Daniel Nachtrub
Daniel Nachtrub
Container