Disable GUI at Boot As per Ask Ubuntu # /etc/default/grub # Change `GRUB_CMDLINE_LINUX_DEFAULT="quiet splash"` to GRUB_CMDLINE_LINUX_DEFAULT="text" sudo update-grub Stop Lightdm in Systemd As per Ask Ubuntu Other systemd commands sudo systemctl disable lightdm.service systemctl start lightdm.service Install Plex Server As per Plex Support Configuration as per htpc guides Use the web interface at ip:32400/web echo deb https://downloads.plex.tv/repo/deb/ public main | sudo tee /etc/apt/sources.list.d/plexmediaserver.list curl https://downloads.plex.tv/plex-keys/PlexSign.key | sudo apt-key add - sudo apt update sudo apt install plexmediaserver # add plex to your user group sudo usermod -aG USERNAME plex # chane the media folder permissions sudo chmod -R 775 /path/to/media Copy Files over SSH scp file1.txt file2.txt user@other:~/path/to/folder Monitor System Temperature As per Ask Ubuntu sudo apt-get install lm-sensors sudo sensors-detect sensors # to watch it watch -n 1 sensors Sleep and Hibernate As per Ask Ubuntu sudo pm-suspend sudo pm-hibernate sudo pm-suspend-hybrid