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Network

Firefox

• References

  https://wiki.debian.org/Firefox
  https://wiki.archlinux.org/title/Firefox
  https://wiki.archlinux.org/title/Firefox/Tweaks

  https://www.mozilla.org/en-US/firefox/releases/
  https://support.mozilla.org/en-US/kb/install-firefox-linux

• Install from mozilla

  https://ftp.mozilla.org/pub/firefox/releases/

  might require dbus-glib : sudo apt install libdbus-glib-1-2

  tar xvf firefox-*.tar.xz && sudo mv firefox /opt/
  sudo ln -s /opt/firefox/firefox /usr/local/bin/firefox
  wget https://hotnuma.github.io/docpages/linux/firefox.desktop
  sudo mv ./firefox.desktop /usr/local/share/applications/
  

  Set new tab and home to a blank page.

• Install icon under Wayland

  sudo mkdir -p /usr/local/share/icons/hicolor/128x128/apps/
  sudo cp /opt/firefox/browser/chrome/icons/default/default128.png \
  /usr/local/share/icons/hicolor/128x128/apps/firefox.png
  sudo update-icon-caches /usr/local/share/icons/*
  sudo sed -i -e 's,/opt/firefox/browser/chrome/icons/default/default128.png,firefox,g' \
  /usr/local/share/applications/firefox.desktop
  

• Firefox Fonts

  DejaVu 16 / 15 / 15
  Don't allow web pages...
  Zoom 110 %
  

• Test Videos

  https://www.youtube.com/watch?v=pcSv22DTDUI
  https://www.youtube.com/watch?v=cuXsupMuik4
  https://www.youtube.com/watch?v=TVtoxUohG5E

• Google Web Search

  https://www.reddit.com/r/firefox/comments/1kpqv5r/

  GoogleWeb
  https://www.google.com/search?udm=14&q=%s
  https://suggestqueries.google.com/complete/search?client=firefox&q=%s
  

• User Profiles

  https://support.mozilla.org/en-US/kb/profiles-where-firefox-stores-user-data

  Type about:profiles in the address bar.

  ~/.mozilla/firefox/
  ~/.cache/mozilla/firefox/
  

• Safe Mode

  In a terminal : firefox --safe-mode

• Turn off ambient mode

  https://www.popsci.com/diy/youtube-ambient-mode-off-on/

• Turn off updates

  https://mozilla.github.io/policy-templates/#manualappupdateonly

  Create a policies.json file in firefox/distribution/ :

  {
      "policies":
      {
          "DisableAppUpdate": true,
          "ManualAppUpdateOnly": true
      }
  }
  

  sudo mkdir -p /opt/firefox115esr/distribution/
  sudo cp ./policies.json /opt/firefox115esr/distribution/
  

Network

• Reference

  https://wiki.debian.org/NetworkConfiguration
  https://wiki.debian.org/NetworkManager

• Read DNS servers

  cat /etc/resolv.conf
  ls /etc/resolv.conf
  

• Change DNS

  https://serverfault.com/questions/810636/

  Get network connection name : nmcli con

  nmcli con mod "Wired connection 1" ipv4.dns "8.8.8.8 8.8.4.4"
  nmcli con mod "Wired connection 1" ipv4.ignore-auto-dns yes
  service NetworkManager restart
  cat /etc/resolv.conf
  

• Read hostname and domain name

  hostname
  hostname -d
  

• Read network configuration

  ip a show eth0
  ip route show default
  networkctl
  networkctl status
  

  List interfaces : ls /sys/class/net

• Restart network

  sudo ifdown eth0
  sudo ifup eth0
  ip a show eth0
  

  sudo ip link set dev eth0 down
  sudo ip link set dev eth0 up
  

  sudo systemctl restart networking

• Predictable Network Interface Names

  https://www.freedesktop.org/.../PredictableNetworkInterfaceNames

  Switch back to eth0 :

  Add GRUB_CMDLINE_LINUX="net.ifnames=0" in /etc/default/grub

  Execute sudo update-grub

• Set BBox name in hosts file

  sudo nano /etc/hosts

  append : 192.168.1.254 mabbox.bytel.fr

Switch to /etc/network/interfaces

• Network Interfaces

  check interfaces names : ifconfig

  sudo mv /etc/network/interfaces /etc/network/interfaces.bak

  sudo nano /etc/network/interfaces

  auto lo
  iface lo inet loopback
  
  auto eth0
  iface eth0 inet static
      address 192.168.1.132/24
      netmask 255.255.255.0
      broadcast 192.168.1.255
      gateway 192.168.1.254
      dns-nameservers 8.8.8.8 8.8.4.4
  

• Install ifupdown

  sudo apt install ifupdown resolvconf

• Disable NetworkManager

  sudo systemctl stop NetworkManager
  sudo systemctl disable NetworkManager
  

• Disable systemd-networkd

  check service : sudo systemctl status systemd-networkd

  sudo systemctl stop systemd-networkd
  sudo systemctl disable systemd-networkd
  sudo rm /etc/systemd/network/00-eth0.network
  

• Enable eth0

  check links : ls -la /etc/systemd/network/

  sudo ln -s /dev/null /etc/systemd/network/99-default.link

• Configure eth0 using ifup :

  sudo ifup eth0

• Uninstall network manager

  sudo apt purge network-manager

Use systemd-networkd

• Use systemd-networkd

  https://linux.fernandocejas.com/docs/...systemd-networkd

  Create a configuration file :

  /etc/systemd/network/00-eth0.network

  [Match]
  Name=eth0
  
  [Network]
  Address=192.168.1.100/24
  Gateway=192.168.1.254
  DNS=8.8.8.8
  DNS=8.8.4.4
  

  Start services :

  sudo apt install systemd-resolved
  
  sudo systemctl stop NetworkManager
  sudo systemctl disable NetworkManager
  
  sudo systemctl enable systemd-networkd
  
  sudo systemctl enable systemd-resolved
  sudo systemctl start systemd-resolved
  
  networkctl