Updated 11-Jul-2026 Turns out there are several ways to flush the DNS cache on Linux, depending upon what service is being used for DNS caching. In some cases, no services are being used, which means resetting the network should do the trick. sudo /etc/init.d/networking restart Google Chrome Browser DNS Caching However, Google will have its ... Read more
Updated 03-Aug-2025 Update April 2025 To be honest, I no longer use Nemo as the dependencies became super-annoying. Thunar is more than adequate and actually has a lot of extensibility. It is also the default file manager in XFCE, my current desktop of choice. Nemo File Manager Nemo file manager is made for Cinnamon by ... Read more
Updated 11-Jul-2026 How to set and modify hostnames hostname commands hostname and hostnamectl will display the static, transient hostnames (hostnamectl also provides other host information). sudo nano /etc/hostname can be used to edit the hostname that will be displayed upon reboot or restart. This can be done more easily from the command with sudo hostnamectl ... Read more
Updated 20-Jun-2026 Update May 2025 Most of the below is crap. I hate Jack. Pipewire isn't any better. But I did find a bit of a fix for my PulseAudio settings (a bit more control) from this page: sudo apt purge pulseaudio-equalizer # removes the old EQ # the order in which the services are ... Read more
Updated 03-Aug-2025 Debian 11 Bullseye Alpha 1 / 3 These are notes from an initial installation of Debian 11 (Bullseye) Alpha 1 from 2019-11-30, and A new reinstall using Alpha 3 from 2020-12-20. This is meant as the daily driver on an Intel NUC6CAYH, which is a four core celeron with 8gb of ram and ... Read more
Updated 24-Nov-2025 APT -- Advanced Package Tool -- is all that is needed for most application installations when there are repositories which are regularly updated for packages of interest. Note that apt essentially makes irrelevant apt-get so there is no reason for that redundancy any longer. Note: Use aptitude when dealing with packages that have ... Read more
Updated 03-Aug-2025 How to manage fonts in Debian (installing/removing/refreshing). See also Fonts, Typefaces, Typography Microsoft Core Fonts Installer Check to see if this is installed via apt-cache sudo apt-cache search ttf-mscorefonts-installer Emoji fonts Yeh, I don't like them but people use them so need to see them. sudo apt install fonts-noto-color-emoji Debian and application fonts ... Read more
Updated 24-Aug-2025 **Note - This article needs a revamp as it references Amazon Linux and should simply be straightforward for any Debian. On a new Amazon Linux AMI installation, there is a useful ec2-user account configured. However, in order to make it more useful, there is a need to edit some .bashrc files, as well ... Read more
Updated 03-Aug-2025 ufw is known as a Debian (and Ubuntu) firewall, which is disabled by default but easy to use. There are some GUI front-ends which make it popular for Linux on the desktop. Coming from a CentOS background (RHEL/Amazon Linux AMI), ufw is not as common (as, say firewalld, or simply iptables, to which ... Read more
Updated 12-Jan-2026 This is a terse collection of commands and utilities I find useful for shells. There is little distinction between programs and commands as commands are programs (and are installed or come pre-installed) and programs have commands. Also included is a shell (Fish Shell) and some other shell applications/utilities (Mosh, Nano). bc - basic ... Read more
Updated 03-Aug-2025 scp, the secure version of cp, aka copy, is pretty great, since it is straightforward to copy one or more files or directories from any one machine to any other machine (and the command could be running on a third machine). SCP Syntax Note: it is best to use sudo, and full paths ... Read more
Updated 03-Aug-2025 Note: This started out as a page about MOSH, but I've moved on to AutoSSH, which is way easier without much configuration, and better at what it does. I had not been aware of Mosh (mobile shell), though clearly its own level of awesome is not a reason for that. Basically it replaces ... Read more
Updated 10-Jun-2026 Update June 2026 - Some progress has been made in Scribus, and I can endorse using Scribus 1.7.3 or later (the development version). I got the Flatpak to run in full dark mode (somehow, I don't know exactly what did the trick but here are some steps to try): Install adwaita-qt sudo apt ... Read more