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Category: linux

Recover your Windows EC2 instance from CrowdStrike incident

Please note that the following steps work on volume without bitlocker. Step 1: Identify the affected EC2 instance. On AWS console > EC2 > Instance, Click Actions > Monitor and troubleshoot > Get system screenshot to open the console, and you should see a blue screen like this. When it reaches 100%, the OS would…

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Upgrade RockyLinux 8 to 9

Here is how to do an in-place upgrade using dnf

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LVM Compression and Deduplication

With LVM / VDO, it is possible to save disk space using block-level compression and deduplication. I’ll show you how it’s done on Linux.

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Upgrade Ubuntu 16.04 to latest release

Ubuntu 16.04 went EOL on April 2021. In this post, I will demonstrate how to do an in-place upgrade to the latest release.

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Automatically update EL8

In EL7, we can use yum-cron to automatically install updates. On EL8, the equivalent tool is dnf-automatic. Here is how to set it up.

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Red Hat Enterprise – no-cost-subscription

Use Red Hat Enterprise Linux for free.

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Add a keyboard shortcut on Ubuntu

Tired of typing the same thing repeatedly?

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apache-2.2.34 and openssh-8.2p1 on EL6

Red Hat backports fixes and keep package versions as they are. At times, security scanners are not smart enough to know that. They’d complain the packages are out of date. Making it worse, apache 2.2 has reached EOL since 2018. And even though openssh is now on version 8.2, one will still find version 5.3…

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Install ClearLinux

ClearLinux is made by Intel. Here I’ll try to install the server version on qemu-kvm.

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