verified with following minimal test, embedded in a flake for ease of
execution:
```nix
{
inputs.nixpkgs.url = "github:NixOS/nixpkgs/master";
outputs = { nixpkgs, ... }:
let
pkgs = import nixpkgs { system = "x86_64-linux"; };
in
{
nixosTests.x86_64-linux.internet = pkgs.nixosTest {
name = "internet";
nodes.machine = { };
# only succeeds in interactive mode
testScript = ''
machine.wait_for_unit("default.target")
print(machine.succeed("curl -4 https://nixos.org"))
'';
};
};
}
```
Launch this test interactively as described in the manual & run
`test_script()` to verify that the VM has Internet access.
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