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Debian Linux Post-installation setup

388 words·2 mins·
Linux Setup
Linux - This article is part of a series.
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I’ve installed and set up Debian Linux probably more than 15 times in my life, and I almost always go through the same steps. Yesterday I did it again, and I thought of documenting the process in a step-by-step guide

  • TO-DO: Add Security Hardening to this guide (This is generally okay for test boxes, isolated VMs, etc. where the threat model is reasonably allowing)

[!INFO] This is NOT a post about “How to install Debian Linux” but a post-installation “Checklist” and it assumes it’s already installed.

  1. Sudo access
su root
usermod -aG sudo $USER

# If usermod not found:
sudo apt update && sudo apt install passwd
  1. Update && Upgrade
sudo apt update && sudo apt full-upgrade -y && sudo reboot
  1. Additional Software
sudo apt install -y curl wget git gnome-tweaks gnome-shell-extensions \
  gnome-shell-extension-manager
  1. Swap
sudo echo 'vm.swappiness=10' >> /etc/sysctl.conf
  1. Networking

This one needs more testing. But worth a shot to try:

# Disable NM
sudo systemctl stop NetworkManager
sudo systemctl disable NetworkManager

# Use networkd && resolved instead:
sudo systemctl enable systemd-networkd
sudo systemctl start systemd-networkd

sudo systemctl enable systemd-resolved
sudo systemctl start systemd-resolved

# Linking 
sudo ln -sf /run/systemd/resolve/resolv.conf /etc/resolv.conf
  • Optional: Set up IP manually
[Match]
Name=eth0

[Network]
Address=192.168.1.100/24
Gateway=192.168.1.1
DNS=1.1.1.1
DNS=8.8.8.8
  • 5.1. Firewall (UFW)
sudo ufw enable
  1. Install extensions

https://extensions.gnome.org

  • Open Extensions App on Debian,
  • Toggle on “User Themes”
  • Download Orchid or Nordic themes
  1. Terminal && Text editor
  • Install & setup Terminator
sudo apt-get -y install terminator

cd
curl -so .config/terminator/config https://github.com/Argandov/my_dotfiles/raw/master/terminator.config
  • Vim Setup
sudo apt -y install vim

# My own dotfiles setup:
curl -s https://raw.githubusercontent.com/Argandov/my_dotfiles/master/get-my-dotfiles.sh | bash -s -- --vimrc
  • fzf/zoxide/eza/bat/others
# Fuzzy Finder
sudo apt update
sudo apt install fzf

sudo apt install zoxide

# Bashrc:
echo 'eval "$(zoxide init bash)"' >> ~/.bashrc

# EZA (Better LS)
sudo apt install cargo
cargo install eza

# Bat (Better "cat")
sudo apt install bat

# Additionals
apt install ffmpeg 7zip jq poppler-utils fd-find ripgrep fzf zoxide imagemagick
  • Starship

Nerdfont: Iosevka https://arc.net/l/quote/mytetusk

curl -sS https://starship.rs/install.sh | sh

# BASHRC
echo 'eval "$(starship init bash)"' >> $HOME/.bashrc

mkdir $HOME/.config/starship/

curl -so $HOME/.config/starship/vlack.toml https://raw.githubusercontent.com/Argandov/DotFiles-and-Setup/refs/heads/master/starship/vlack.toml

# BASHRC
echo 'export STARSHIP_CONFIG="$HOME/.config/starship/vlack.toml"' >> $HOME/.bashrc
  • Yazi

At the moment, Yazi needs to be either built, or downloaded from https://github.com/sxyazi/yazi/releases

Or via Cargo (Haven’t done this myself yet) https://yazi-rs.github.io/docs/installation#crates *

  1. Wallpaper

My favourite WP: https://unsplash.com/photos/close-up-photo-of-black-water-at-daytime-o1radglopDA

  1. Brave browser
curl -fsS https://dl.brave.com/install.sh | sh
J Armando G
Author
J Armando G
Cybersecurity & General Tech Enthusiast
Linux - This article is part of a series.
Part : This Article