gistfile1.txt

  networking = {
    hostName = "nix9000"; # Define your hostname.
    wireless.enable = false;  # Enables Wireless.
    bridges = { 
      br0 = {
        interfaces = [ "enp4s0" ]; 
      };
    };
    firewall = {
      enable = true;
      allowPing = true;
      allowedTCPPorts = [ 22 80 445 5001 20202 ];
    };
  };