init: 20240525)openssh-server during setup. I want ssh access to this box: sudo apt install openssh-server
100. subnet, a range of IP addresses reserved for Carrier-Grade NAT (CGNAT).sudo apt install curl first).Disable key expiry from your Machines dashboard’s host ... menu./etc/systemd/resolved.conf file and enter the provided configuration data.DNS=IPv4or6#ID.dns.nextdns.io adapt it to show your HOST: DNS=IPv4or6#HOST-ID.dns.nextdns.io as described in the “Identify your devices” section of that page.sudo service systemd-resolved restartx11vnc user. With the transition to Wayland, I started looking for alternate solutions, and settling on NoMachine which adds sound and dropping files from a system to another. Because I am the only person accessing the system, I only need one connection, be it other the local subnet (direct or Wireguard VPN) or Tailscale..deb file for our x86_64 system, and sudo dpkg -i installing it, the tool will enable the NX service on port 4000./usr/NX/etc/server.cfg file to modify the NXdListenAddress setting to only access the subnet IP of our host to used. There are many other settings that can be changed from the configuration file, please see https://kb.nomachine.com/AR02N00877 for additional details..deb files do not install when double-clicking on them as in previous releases (test installing Chrome, 1Password, Visual Studio Code, or WaveBox’s .deb, for example). You can use the terminal and install those using sudo apt install <FULL_PATH>.deb App Center application and search for the gdebi debian package..AppImage files the first time, you will get an AppImages require FUSE to run error (test with Stacer‘s .AppImage, for example)sudo apt install libfuse2t64 will solve this, and now you can start the tool..snap file is a compressed SquashFS file system containing all the application's necessary files and directories in a compressed format.sudo killall snap-store sudo snap refresh
flatpak support, and selecting the Install button from packages listed on https://flathub.org/ will allow you to install the downloaded files.noble version is yet available at https://ppa.launchpadcontent.net/flatpak/stable/ubuntu/dists/. As such, sudo nano /etc/apt/sources.list.d/flatpak-ubuntu-stable-noble.sources and replace noble by jammy on the Suites line.brew became popular on MacOS and has been ported to Linux.brew is that although you might have an apt or snap version of many tools available, the brew version is likely more recent than the one available with those package managers. brew was required to get a recent version of podman to support the NVIDIA Container toolkit. On 24.04, apt info podman tells us we have 4.9.3, while brew info podman shows 5.0.3 available.brew command (we recommend a sudo apt install git git-lfs before attempting to install it).brew info NAME to get details on each tool)brew install buf ctop duf eza fd fx fzf hyfetch keychain tldr zoxide
nix-env is a unique and powerful package manager with a distinct approach to software installation and management; each package is defined using a purely functional language as a function of its inputs (dependencies), leading to deterministic and reproducible builds.nix-shell is designed to create isolated and reproducible shell environments: you can test tools without installing them..bashrc).nix-shell -p imgcat. After the installation, you will be in a [nix-shell:~]$ where you can check which imgcat and then run an imgcat /usr/share/plymouth/ubuntu-logo.png command. When you exit this shell, you will see that which imgcat shows that it is not available anymore.nix-env “on Non NixOS” instructions; here nix-env -iA nixpkgs.imgcat. After this, which imgcat will show the tool available on your system.sudo apt install zshzsh use chsh -s /usr/bin/zsh zsh) and follow the interactive “Z Shell configuration function for new users"Oh My Zsh is a delightful, open source, community-driven framework for managing your Zsh configuration. It comes bundled with thousands of helpful functions, helpers, plugins, themes […]
plugins= line inside your ~/.zshrcapt, brew, or nix-env.extract commandls replacement (requires eza installation). You can also configure it (add before the plugins= line in ~/.zshrc):zstyle ':omz:plugins:eza' 'dirs-first' yes zstyle ':omz:plugins:eza' 'git-status' yes zstyle ':omz:plugins:eza' 'header' yes zstyle ':omz:plugins:eza' 'show-group' yes zstyle ':omz:plugins:eza' 'time-style' long-iso
isodate and other commandspp_json and other commandsplugin= line again), for example:zstyle :omz:plugins:keychain agents ssh zstyle :omz:plugins:keychain identities id_ed25519 id_rsa zstyle :omz:plugins:keychain options --quiet
mkv, vrun and other commands.psmem10, pscpu10, geteip, getip, and other commandsurlencode and urldecode commandsplugins= line would look like:plugins=(extract eza fzf git history isodate jsontools keychain python systemadmin urltools)
.zshrc.pre-oh-my-zsh file. Copy its content at the beginning of your .zshrc file. .bashrc file (if bash was your original shell); please add those to your .zshrc before the plugins= since you might have installed the tools required by those plugins using brew or nix. Once done, ssh to your host to confirm everything is functional: no missing packages indicated by the shell prompt, nix-env -qa --installed "*" and brew list return some installed packages (if any).ZSH_THEME="powerlevel10k/powerlevel10k" in ~/.zshrczsh) and follow the guided prompt to complete the configuration wizard. I do not enable “instant prompt” as I will add neowofetch to my interactive shells next..p10k.sh file to see that you can edit the POWERLEVEL9K_LEFT_PROMPT_ELEMENTS and POWERLEVEL9K_RIGHT_PROMPT_ELEMENTS to match your preferences (including adding more lines of context)..zshrc add an interactive shell separator# If not running interactively, don't do anything case $- in *i*) ;; *) return;; esac
neowofetch (installed by installing hyfetch). ~/.config/neofetch/config.conf), which you can edit to suit your needs (for example, display the gpu_driver, disk, local_ip, public_ip, users, and locale in the main section, or the memory_unit and add to thedisk_show)..zshrc add after the interactive separator:echo ""; neowofetch
fd as it is not in the list of oh-my-zsh plugins anymore
Hosting on a VPS is a great option to run a blogging service, but installing services that might expose ports needs to be done with some precaution (or not at all if the service is only to be used by the server itself).
"Unattended Upgrades" is a package available on Ubuntu systems that automatically installs updates for security and, optionally, other software packages. This tool is crucial for maintaining system security and stability. It ensures that vulnerabilities and bugs are promptly addressed without requiring manual intervention. This post details the setup instructions for using it for security updates on an Ubuntu Linux 22.04 or 24.04 server and sending emails when the updates are completed.
Postfix is a free, open-source mail transfer agent (MTA) used to route and deliver email over the Internet. FastMail is a paid service that provides a secure, privacy-focused email provider supporting custom domains. This post details the setup instructions for using Postfix as a Send-Only SMTP server, using Fastmail, on a Ubuntu Linux 22.04 server.