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Arch Linux (Manjaro, please)

Installing manjaro zsh config​

yay -S manjaro-zsh-config

The final setup says: """ Add the content of /etc/zsh/zshrc-manjaro into ~/.zshrc to activate. """

ttf-meslo-nerd-font-powerlevel10k

Default shell​

Manjaro has a nice shell, make use of it:

sudo chsh -s /bin/zsh $USER

Initial setup​

Enable multilib! As this ArchLinux wiki - Repositories#Multilib guide shows.

Uncomment the "[multilib]" section in the /etc/pacman.conf and update the packages with sudo pacman -Syyu

  1. Configure pacman to use simultaneous downloads :)

Edit /etc/pacman.conf line "ParallelDownloads" to something like 5

sudo sed -i -e "s/.*ParallelDownloads.*/ParallelDownloads = 5/" /etc/pacman.conf
  1. System update First, make sure to update your system's keys and packages
pacman-key --init
pacman-key --populate
pacman-key --refresh-keys
pacman -Sy archlinux-keyring
pacman -Syyu
  1. Base packages Then, install some basic packages
pacman -S base-devel docker docker-compose git glances jq man netcat net-tools openssh vim xorg-xauth xterm zsh

2.1 The following may be usefull in a GUI env

pacman -S discord terminator vscode
  1. User setup Set up a user and quit root

3.1 Create a sudo group

groupadd sudo

3.2 Enable sudoers file You can open the file /etc/sudoers and uncomment the lines # %wheel ALL=(ALL:ALL) ALL and # %sudo ALL=(ALL:ALL) ALL. Or just run the commands:

Allow members of group wheel to execute any command

sed -i -e "s/# %wheel ALL=(ALL:ALL) ALL/%wheel ALL=(ALL:ALL) ALL/" /etc/sudoers

Or %wheel ALL=(ALL) NOPASSWD: ALL

Allow members of group sudo to execute any command

sed -i -e "s/# %sudo ALL=(ALL:ALL) ALL/%sudo ALL=(ALL:ALL) ALL/" /etc/sudoers

3.3 User group Add the user to the sudoers group

useradd -m -G wheel,sudo -s /bin/bash <username>

3.4 User password Set a password to the user

passwd <user>

3.5 Directories (WSL only)

cp .ssh ~/ -R
cp .gitconfig ~/ -R
cp .gnupg ~/ -R

And fix ssh dir permissions

chmod 0644 ~/.ssh/id_*.pub && chmod 0600 ~/.ssh/id_*

Don't forget to configure the SSH Key Agent

3.6 Default user (WSL only)

Set the default user to arch wsl

Add the following content to /etc/wsl.conf

[user]
default = <username>

Then, terminate your WSL instance to apply the settings.

  1. yay AUR Now, let's configure "yay" package manager to install AUR packages
git clone https://aur.archlinux.org/yay-git.git
cd yay-git
makepkg -si
  1. AUR packages Install some usefull AUR packages
yay -S cmatrix minikube vim-gnupg

5.1 GUI ones

yay -S drawio-desktop google-chrome teamviewer tor-browser

Flutter​

# Configure Snap
sudo ln -s /var/lib/snapd/snap /snap

# Install flutter via snap
sudo snap install flutter --classic

# Install android studio and sdk stuff
yay -S android-studio android-sdk-cmdline-tools-latest

# Then, run flutter-doctor to check
flutter doctor

If you installed google-chrome-stable, there'll be a "GOOGLE CHROME not found error". Fix it:

sudo ln -s /usr/bin/google-chrome-stable /usr/bin/google-chrome

Other error that you'll face is 'unable to locate Android SDK'. First of all, go ahead to:

https://developer.android.com/studio/index.html

Download Android Studio

Go to the directory where you downloaded the Android Studio

extract the file

open your terminal:
sudo mv ~/Downloads/android-studio /usr/local -> it's a example, use the correct path that you extracted android-studio
cd /usr/local/android-studio/bin
/usr/local/android-studio/bin$ ./studio.sh

Then open your Android Studio from menu and install the IDE.

You'll see a screen with 'project' 'new project' 'more info' click in more info and open SDK Manager

Under SDK Location there is three SDK sessions, select SDK Tools

Install: 
Android SDK Build-Tools 33-rc3
Android SDK Command-line tools (latest)
Android Emulator
Android SDK Plataform-Tools

apply and accept the confirmation to download the packages

Run flutter doctor --android-licenses Accept all And voilà!

Docker​

If you followed the guide above, you'll already have Docker installed in your system.

But now you should configure it properly to autostart on every boot.

# Enable the docker service to start now and with the system
sudo systemctl enable --start docker

Docker group​

sudo usermod -aG docker $USER

Docker sudo​

I don't recommend running docker with a normal user (adding it to the docker user group). But I know that typing "sudo docker" everytime is a pain in the 4$$...

So... set a docker command alias to sudo!

# The following example works with ZSH! Please, note if you're using a different shell...
echo "alias docker='sudo docker'" >> ~/.zshrc
echo "alias docker-compose='sudo docker-compose'" >> ~/.zshrc

Note I had to follow the "docker group" approach to make kubernetes work :(

Kubernetes​

  1. Install Kubernetes packages and it's dependencies
pacman -S helm kubeadm kubectl kubelet libvirt libvirt qemu-headless ebtables dnsmasq
  1. Setup
## Add your user to 'libvirt' group (also docker if not yet)
sudo usermod -aG libvirt $USER

## Enable and start 'libvirtd' service
sudo systemctl enable --now libvirtd.service

## Set kvm2 driver as default
minikube config set driver kvm2
  1. Start
minikube start

## OR you can also start minikube with a custom drive, set at runtine:
minikube start --driver=docker

Extras​

GPG Key Agent​

  1. Create a gpg-agent config file with the command and content:
vim ~/.gnupg/gpg-agent.conf
default-cache-ttl 34560000
max-cache-ttl 34560000
pinentry-program /usr/bin/pinentry-curses
  1. Append the following to ~/.bashrc
# enable GPG signing
export GPG_TTY=$(tty)

if [ ! -f ~/.gnupg/S.gpg-agent ]; then
    eval $( gpg-agent --daemon --options ~/.gnupg/gpg-agent.conf )
fi

export GPG_AGENT_INFO=${HOME}/.gnupg/S.gpg-agent:0:1

As seen here

SSH Key Agent​

  1. Add the following piece of code to your shell init script (for example: ~/.bashrc)
if ! pgrep -u "$USER" ssh-agent > /dev/null; then
    ssh-agent -t 1h > "$XDG_RUNTIME_DIR/ssh-agent.env"
fi
if [[ ! "$SSH_AUTH_SOCK" ]]; then
    source "$XDG_RUNTIME_DIR/ssh-agent.env" >/dev/null
fi

1.1 If you are on WSL, use the following code

# Set up ssh-agent
SSH_ENV="$HOME/.ssh/environment"

function start_agent {
    echo "Initializing new SSH agent..."
    touch $SSH_ENV
    chmod 600 "${SSH_ENV}"
    /usr/bin/ssh-agent | sed 's/^echo/#echo/' >> "${SSH_ENV}"
    . "${SSH_ENV}" > /dev/null
    #/usr/bin/ssh-add
    # The line above was commented to avoide asking for SSH Key at login
}

# Source SSH settings, if applicable
if [ -f "${SSH_ENV}" ]; then
    . "${SSH_ENV}" > /dev/null
    kill -0 $SSH_AGENT_PID 2>/dev/null || {
        start_agent
    }
else
    start_agent
fi

Taken from this guide

  1. Now, set the SSH Agent at ~/.ssh/config
AddKeysToAgent yes

SSH​

Now it's time to harden our system even more.

  1. Let's remove SSH password login, accept SSH key only, and change the SSH Server port.
nano /etc/ssh/sshd_config
Port 5522
ListenAddress 0.0.0.0
LogLevel INFO
PermitRootLogin no
PubkeyAuthentication yes
AuthorizedKeysFile %h/.ssh/authorized_keys
PasswordAuthentication no
AllowAgentForwarding yes
X11Forwarding yes
PrintLastLog yes
  1. Enable and start the service
systemctl enable --now sshd

ZeroTier​

  1. Install
yay -S zerotier-one
  1. Enable and start the service
systemctl enable --now zerotier-one
  1. Join network
zerotier-cli join <networkid>

200 join OK
  1. Go the the network management panel and authorize the host: https://my.zerotier.com/network/<networkid>

Also assign an IP address.

  1. Check status
zerotier-cli info
200 info <hostid> 1.8.10 ONLINE

zerotier-cli listnetworks
200 listnetworks <nwid> <name> <mac> <status> <type> <dev> <ZT assigned ips>
...

Turnoff screen​

xset dpms force off

References​