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WSL/doc/docs/technical-documentation/gns.md
WSL Team 697572d664 Initial open source commit for WSL. 
Many Microsoft employees have contributed to the Windows Subsystem for Linux, this commit is the result of their work since 2016.

The entire history of the Windows Subsystem for Linux can't be shared here, but here's an overview of WSL's history after it moved to it own repository in 2021:

Number of commits on the main branch: 2930
Number of contributors: 31

Head over https://github.com/microsoft/WSL/releases for a more detailed history of the features added to WSL since 2021.
2025-05-15 12:09:45 -07:00

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GNS

gns is a process created by mini_init. Its jobs is to configure networking within the WSL2 virtual machine.

Networking configuration

Networking settings are shared by all WSL2 distributions. While WSL2 is running, gns maintains an hvsocket channel to wslservice.exe, which is used to send various networking related configurations such as:

  • Interface IP configuration
  • Routing table entries
  • DNS configuration
  • MTU size configuration

When DNS tunneling is enabled, gns is also responsible for replying to DNS requests.

See src/linux/init/GnsEngine.cpp and src/windows/service/exe/GnsChannel.cpp