Initial Setup

Essential tasks after a fresh Ubuntu-based install: fix missing user directories, update packages, install core tools, and create a Timeshift snapshot.

A Windows-user-friendly map of the Linux directory tree — what /etc, /home, /usr, /var, and /tmp are and how they compare to Windows folder structure.

What X11 and Wayland are, when to use each one, and how to switch between them on Ubuntu-based desktops. Linux Mint 22.3 Cinnamon defaults to X11/Xorg.

Change, verify, prioritize, and reset DNS settings on Ubuntu 24.04-based desktops and servers using nmcli, Netplan, and systemd-resolved.

Change partition labels for ext4, FAT32, NTFS, and other filesystems using command-line tools. Useful for organizing drives and fixing Dropbox sync paths.