HOWTO

RHEL 8 Resources

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RHEL 8 Console

Red Hat announced the general availability of Red Hat Enterprise Linux 8 (RHEL 8) at Red Hat Summit on 7 May 2019. The following page attempts to bookmark RHEL 8 resources that might be useful for sysadmins that are looking forward to deploying this release. Official Documentation Product Documentation for Red Hat Enterprise Linux 8 […]

Containers

OpenShift 4

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Savoy Place, London

About 10 days ago I was lucky enough to attend the OpenShift Commons Gathering at Savoy Place in London. I’m familiar with RHEL and many of the other Red Hat products, however OpenShift is still relatively new to me. OpenShift 4 is due to become Generally Available (GA) in March or April, therefore, it was […]

HOWTO

RHEL 8 Configure IP Address

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Red Hat Enterprise Linux 8 (RHEL 8) has deprecated the network scripts that have been used in previous RHEL releases. RHEL 8 now comes with new versions of the ifup and ifdown commands which call the nmcli tool. What does deprecated mean? From the Red Hat Enterprise Linux 8 Beta Release notes: Deprecated functionality continues […]

HOWTO

Undervolting the CPU

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ThinkPad P1

The ThinkPad P1 features a very powerful CPU inside a relatively small chassis.  As a result the CPU fans can activate more often than is wanted and the amount of time you can spend on battery can be reduced.  There are a couple of tools to help with this. In Windows, the Intel XTU utility […]

Containers

Virtual Machines In A Container

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Linux containers

From the blog post: https://blog.openshift.com/re-imagining-virtualization-with-kubernetes-and-kubevirt/ KubeVirt is designed to maintain a balance by providing virtualization capabilities, yet keeping the Kubernetes philosophy and semantics. This enables a transition path where virtual machines can behave the same as before but also leverage Kubernetes infrastructure, tools, management. Re-Imagining Virtualization with @kubernetesio, @KubeVirt and @openshift https://t.co/Mg8QmUBNIA — Itamar Heim […]

Containers

Buildah, Podman and CRIO-O

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Linux containers

Buildah, Podman and CRIO-O. What are they and how to they relate to each other? From the blog post Buildah and Podman Relationship: CRI-O was created to provide a lightweight runtime for Kubernetes which adds an abstraction layer between the cluster and the runtime that allows for various OCI runtime technologies Buildah allows you to […]