Study-Note

Spinning up initial lab environment with basic Terraform & Ansible adhoc commands. This spins up two freeIPA server and 1 DNS server, along with a virtual network to tie things together

While maintaining repeatability and consistency

I was learning more about ZFS while applying what I learned to my OWN data. Of course, as Murphy’s Law states… so here are the lesson from a fool.

Installing NVIDIA GPU driver on AlmaLinux is a pain in the ass as there are so many sources with different approaches. These steps worked for me

During installation of Alma Linux, I noticed that it created a logical volume (LV) by default for /home spanning across 2 disks. One of it is failing.

After installing zfs-utils in Alma Linux, I realized I need to sign zfs module because of secure boot. Here’s how

I decided to take the hard way to understand each line of the XML file and the proper way to spin up KVMs instead of with GUI

Which linux directory to back up # /etc /home /root /var /usr/local/bin and sbin /srv Note: If there are any media mount points in the system such as ‘/mnt’ and ‘/media’, they should be excluded to avoid infinite loop Also helpful to list down the names of packages installed on your system dpkg --get-selections > package_list.txt Backup command options # tar, rsync

Cloud skills are transferable. Don’t have a mindset of learning one. So just pick one and get a beginner cert.

First of all wth is /26 or /24 mask? Then I realised I didn’t understand anything (or at least not deep enough) about subnetting