{{tag>install linux}}
== essential linux setup

=== derek preferences
new

<code bash>

# reset to original for debian12
cd ~
mkdir -p ~/bin
cp /etc/skel/.profile .
cp /etc/skel/.bashrc .
cat<<EOT>~/.bash_aliases
force_color_prompt=yes
alias ll='ls -l'
alias la='ls -A'
alias l='ls -CF'
alias grep='grep --color=auto'
alias fgrep='fgrep --color=auto'
alias egrep='egrep --color=auto'
EOT

#add ~/bin to path for alien linux
#echo 'if [ -d "$HOME/bin" ] ; then PATH="$HOME/bin:$PATH"; fi' >> ~/.profile

curl -LO http://repo.sxl.net/nix/vimrc.txt
cat vimrc.txt > ~/.vimrc && rm vimrc.txt
#
</code>

== other preference

  sudo chsh -s /bin/bash # use bash shell

=== authorized keys
<code bash>
mkdir -p ~/.ssh; cd ~ 
curl -LO http://repo.sxl.net/_h/proj/cert/id_ed25519.pub >> ~/.ssh/authorized_keys
cat id_ed25519.pub >> ~/.ssh/authorized_keys
chmod 600 ~/.ssh/authorized_keys
</code>

=== locale
* get external ip: ''curl https://ipinfo.io/ip''
* https://iplocation.io

  sudo timedatectl set-timezone Asia/Hong_Kong  # timezone
  #sudo timedatectl set-timezone America/Los_Angeles  # timezone (oracle/san jose)
  #sudo timedatectl set-timezone America/Chicago      # timezone (google/lowa)
  #sudo timedatectl set-timezone Europe/London        # timezone (oracle/london)

== debian/ubuntu

=== locale
<code bash>

## locale
sudo apt -yq install locales
echo 'en_US ISO-8859-1' >> /etc/locale.gen
echo 'en_US.UTF_8 UTF-8' >> /etc/locale.gen
sudo locale-gen
update-locale LANG=en_US.UTF-8
update-locale LANGUAGE=en_US:en
update-locale LC_CTYPE="en_US.UTF-8"
update-locale LC_NUMERIC="en_US.UTF-8"
update-locale LC_TIME="en_US.UTF-8"
update-locale LC_COLLATE="en_US.UTF-8"
update-locale LC_MONETARY="en_US.UTF-8"
update-locale LC_MESSAGES="en_US.UTF-8"
update-locale LC_PAPER="en_US.UTF-8"
update-locale LC_NAME="en_US.UTF-8"
update-locale LC_ADDRESS="en_US.UTF-8"
update-locale LC_TELEPHONE="en_US.UTF-8"
update-locale LC_MEASUREMENT="en_US.UTF-8"
update-locale LC_IDENTIFICATION="en_US.UTF-8"
update-locale LC_ALL
</code>

=== packages

<code>
apt-get -y update && apt-get -y upgrade             # system update
apt install -yq openssh-server sudo wget man vim-nox htop iotop curl 
apt install -yq dialog net-tools tmux pgp lsb-release
apt install -y tasksel && tasksel install standard  # install basic utilities
update-alternatives --set editor /usr/bin/vim.nox
apt-get -yq autoclean
apt-get -yq autoremove
#
</code>

=== ssh allow root

  tasksel install ssh-server 
  apt install openssh-server openssh-client 
  echo 'PermitRootLogin yes' > /etc/ssh/sshd_config.d/PermitRootLogin_yes
  echo 'HashKnownHosts no' > /etc/ssh/ssh_config.d/HashKnownHosts_no
  systemctl restart sshd

=== ubuntu 22.04 locale
<code>
apt -y install language-pack-en
localectl  # see current locale
localectl list-locales # see what locales are available
localectl set-locale LANG=en_US.UTF-8
localectl  # see current locale
</code>