Difference between revisions of "Debian Linux Post Install Steps"

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(Install packages)
 
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[[Category:Linux]]
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== Introduction ==
 
== Introduction ==
  
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  hostnamectl set-hostname sky.mgk.ro
 
  hostnamectl set-hostname sky.mgk.ro
 
  reboot
 
  reboot
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 +
== Package management ==
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 +
=== Enable more repositories ===
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cat <<EOT >/etc/apt/sources.list
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deb http://deb.debian.org/debian/ stretch main contrib non-free
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deb-src http://deb.debian.org/debian/ stretch main contrib non-free
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deb http://security.debian.org/debian-security stretch/updates main contrib non-free
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deb-src http://security.debian.org/debian-security stretch/updates main contrib non-free
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deb http://deb.debian.org/debian/ stretch-updates main contrib non-free
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deb-src http://deb.debian.org/debian/ stretch-updates main contrib non-free
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EOT
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=== Do not install recommended and suggested packages ===
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cat <<EOT >/etc/apt/apt.conf.d/50norecommends
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APT::Install-Recommends "false";
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APT::Install-Suggests "false";
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EOT
  
 
== Update the software ==
 
== Update the software ==
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  reboot
 
  reboot
  
== Do not install recommended and suggested packages ==
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== User management ==
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=== Create a user (cloud computing) ===
  
  cat >/etc/apt/apt.conf.d/50norecommends <<EOT
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  useradd -c 'Aram Hăvărneanu' -G users -m -s /bin/bash -g staff aram
APT::Install-Recommends "false";
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passwd -l aram
APT::Install-Suggests "false";
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EOT
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Enable passwordless sudo for the staff group:
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echo '%staff ALL=(ALL) NOPASSWD:ALL' > /etc/sudoers.d/91-staff-no-password
  
== Create a user ==
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=== Fix the user created during installation (non-cloud) ===
  
  useradd -c 'Aram Hăvărneanu' -G users -m -s /bin/bash -g staff aram
+
  usermod -a -G staff aram
 
  passwd -l aram
 
  passwd -l aram
  
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  chmod 700 .ssh
 
  chmod 700 .ssh
 
  chmod 644 .ssh/authorized_keys
 
  chmod 644 .ssh/authorized_keys
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== Install packages ==
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For home installations you might want to install avahi.
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 +
apt install avahi-daemon
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 +
For development system you might want to install:
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 +
apt install rsync git build-essential linux-headers-amd64 gccgo gccgo-go golang-go clang clang-format clang-tidy
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 +
And if you have [[Install newer kernels in Debian stable|backports]]:
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apt -t stretch-backports install clang-6.0 golang-go
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apt autoremove
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 +
== Newer kernel ==
 +
 +
If it's a testing or development system, perhaps you might want a [[Install newer kernels in Debian stable|newer kernel]].

Latest revision as of 15:49, 13 March 2019


Introduction

Everything on this page needs to be done as root, unless specified, so su to root.

sudo -i

Set hostname

hostnamectl set-hostname sky.mgk.ro
reboot

Package management

Enable more repositories

cat <<EOT >/etc/apt/sources.list
deb http://deb.debian.org/debian/ stretch main contrib non-free
deb-src http://deb.debian.org/debian/ stretch main contrib non-free

deb http://security.debian.org/debian-security stretch/updates main contrib non-free
deb-src http://security.debian.org/debian-security stretch/updates main contrib non-free

deb http://deb.debian.org/debian/ stretch-updates main contrib non-free
deb-src http://deb.debian.org/debian/ stretch-updates main contrib non-free
EOT

Do not install recommended and suggested packages

cat <<EOT >/etc/apt/apt.conf.d/50norecommends
APT::Install-Recommends "false";
APT::Install-Suggests "false"; 
EOT

Update the software

apt update && apt -y upgrade
reboot

User management

Create a user (cloud computing)

useradd -c 'Aram Hăvărneanu' -G users -m -s /bin/bash -g staff aram
passwd -l aram

Enable passwordless sudo for the staff group:

echo '%staff ALL=(ALL) NOPASSWD:ALL' > /etc/sudoers.d/91-staff-no-password

Fix the user created during installation (non-cloud)

usermod -a -G staff aram
passwd -l aram

Enable passwordless sudo for the staff group:

echo '%staff ALL=(ALL) NOPASSWD:ALL' > /etc/sudoers.d/91-staff-no-password

SSH

For ssh access, use su to switch from root to the user and then add ssh keys.

su - aram
# as a user
mkdir -p .ssh
echo 'ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIANJ9BKKslS9Zqp1dRWL1nRiLmFp7nGvP06zPJ4L7cES aram@emerald.local' >> .ssh/authorized_keys
echo 'ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIJnkro8LT0TS+NTOIB787wfqIwv2VTmXXYsnsoVk71UE aram@horizon.local' >> .ssh/authorized_keys
chmod 700 .ssh
chmod 644 .ssh/authorized_keys

Install packages

For home installations you might want to install avahi.

apt install avahi-daemon

For development system you might want to install:

apt install rsync git build-essential linux-headers-amd64 gccgo gccgo-go golang-go clang clang-format clang-tidy

And if you have backports:

apt -t stretch-backports install clang-6.0 golang-go
apt autoremove

Newer kernel

If it's a testing or development system, perhaps you might want a newer kernel.