instruction: Create a Dockerfile for networking
output: ```dockerfile
  from starting automatically:
  
  $ sudo systemctl disable docker docker.socket containerd
  Switching between Docker Desktop and Docker EngineThe Docker CLI can be used to interact with multiple Docker Engines. For example,
  you can use the same Docker CLI to control a local Docker Engine and to control
  a remote Docker Engine instance running in the cloud.
  Docker Contexts
  allow you to switch between Docker Engines instances.When installing Docker Desktop, a dedicated "desktop-linux" context is created to
  interact with Docker Desktop. On startup, Docker Desktop automatically sets its
  own context (desktop-linux) as the current context. This means that subsequent
  Docker CLI commands target Docker Desktop. On shutdown, Docker Desktop resets
  the current context to the default context.Use the docker context ls command to view what contexts are available on your
  machine. The current context is indicated with an asterisk (*).
  
  $ docker context ls
  NAME DESCRIPTION DOCKER ENDPOINT ...
  default * Current DOCKER_HOST based configuration unix:///var/run/docker.sock ...
  desktop-linux unix:///home/<user>/.docker/desktop/docker.sock ...
  If you have both Docker Desktop and Docker Engine installed on the same machine,
  you can run the docker context use command to switch between the Docker Desktop
  and Docker Engine contexts. For example, use the "default" context to interact
  with the Docker Engine:
  
  $ docker context use default
  default
  Current context is now "default"
  And use the desktop-linux context to interact with Docker Desktop:
  
  $ docker context use desktop-linux
  desktop-linux
  Current context is now "desktop-linux"
  Refer to the
  Docker Context documentation for more details.Supported platformsDocker provides .deb and .rpm packages for the following Linux distributions
  and architectures:Platformx86_64 / amd64UbuntuâDebianâRed Hat Enterprise Linux (RHEL)âFedoraâAn experimental package is available for Arch-based distributions. Docker has not tested or verified the installation.Docker supports Docker Desktop on the current LTS release of the aforementioned distributions and the most recent version. As new versions are made available, Docker stops supporting the oldest version and supports the newest version.General system requirementsTo install Docker Desktop successfully, your Linux host must meet the following general requirements:64-bit kernel and CPU support for virtualization.KVM virtualization support. Follow the KVM virtualization support instructions to check if the KVM kernel modules are enabled and how to provide access to the KVM device.QEMU must be version 5.2 or later. We recommend upgrading to the latest version.systemd init system.GNOME, KDE, or MATE desktop environment.For many Linux distributions, the GNOME environment does not support tray icons. To add support for tray icons, you need to install a GNOME extension. For example, AppIndicator.At least 4 GB of RAM.Enable configuring ID mapping in user namespaces, see
  File sharing. Note that for Docker Desktop version 4.35 and later, this is not required anymore.Recommended:
  Initialize pass for credentials management.Docker Desktop for Linux runs a Virtual Machine (VM). For more information on why, see
  Why Docker Desktop for Linux runs a VM.
  NoteDocker does not provide support for running Docker Desktop for Linux in nested virtualization scenarios. We recommend that you run Docker Desktop for Linux natively on supported distributions.KVM virtualization supportDocker Desktop runs a VM that requires KVM support.The kvm module should load automatically if the host has virtualization support. To load the module manually, run:
  
  $ modprobe kvm
  Depending on the processor of the host machine, the corresponding module must be loaded:
  
  $ modprobe kvm_intel # Intel processors
  
  $ modprobe kvm_amd # AMD processors
  If the above commands fail, you can view the diagnostics by running:
  
  $ kvm-ok
  To check if the KVM modules are enabled, run:
  
  $ lsmod | grep kvm
  kvm_amd 167936 0
  ccp 126976 1 kvm_amd
  kvm 1089536 1 kvm_amd
  irqbypass 16384 1 kvm
  Set up KVM device user permissionsTo check ownership of /dev/kvm, run :
  
  $ ls -al /dev/kvm
  Add your user to the kvm group in order to access the kvm device:
  
  $ sudo usermod -aG kvm $USER
  Sign out and sign back in so that your group membership is re-evaluated.Where to go nextInstall Docker Desktop for Linux for your specific Linux distribution:Install on UbuntuInstall on DebianInstall on Red Hat Enterprise Linux (RHEL)Install on FedoraInstall on Arch
  Request changesTable of contentsSupported platformsGeneral system requirementsKVM virtualization supportWhere to go next
  
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