Monthly Archives: January 2018

Recent technical articles.

Virtualization: Container Images and Hosts: Selecting the Right Components, Buildah Blocks – OCI Shell Game, OpenShift: What OpenShift Online and Dedicated customers should know about Meltdown and Spectre, Prometheus Alerts on OpenShift, Secure your Kubernetes production cluster, APB Development Tutorial –

Posted in RHEL7

Latest technical articles.

Meltdown / Spectre: Reading privileged memory with a side-channel, Kernel Side-Channel Attacks – CVE-2017-5754 CVE-2017-5753 CVE-2017-5715, KPTI — the new kernel feature to mitigate “meltdown”, What are Meltdown and Spectre? Here’s what you need to know, Controlling the Performance Impact

Posted in RHEL7

RHCSA7: Task of the day

Allowed time: 10 minutes.
Set up a default configuration HTTP server with SELinux in Enforcing mode and active firewalld configuration.

RHCE7: Task of the day

Allowed time: 10 minutes.
Change the SSH process configuration to only listen on the 443 port.

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Poll for favorite RHEL 7 book

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Poll for most difficult RHCSA 7 topic

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Poll for most difficult RHCE 7 topic

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