How To Run Vagrant Apache on Port 80 on Windows and OS X - linux

Question

Scenario
Two host machines, one Windows, one OS X, both running Vagrant and Virtualbox.
Problem
VirtualBox on Mac cannot bind to ports below 1024 without root access.
Don't know how to port forward port on Windows machine
Symptoms
Apache running perfectly on both machines
Mac can access site.local:8080 and use pfctl to access this on site.local
Windows machine can access site.local:8080 or site.local:80 (no port forwarding)
curl site.local on guest machine returns expected output
curl site.local on host machine returns connection refused
iptables on host machine dis
Port forwarding guest port 80 to host port 80 on Mac was working until today. Don't know how or why. Stopped for some reason.
Question
How can I force VirtualBox to run as root on port 80 (regarded as a bad idea)
Alternatively, how can I setup port forwarding on the Windows machine so that site.local:8080 is accessible at site.local?
Alternatively, how can I setup an OS-specific Vagrantfile that can be version controlled.
What I've tried
http://gielberkers.com/fixing-vagrant-port-forwarding-osx-yosemite/ - Works
Port forwarding on Windows 7 - Doesn't work
Enabling config.vm.network "public_network" and binding to en0 gives this error:
==> default: Configuring and enabling network interfaces...
The following SSH command responded with a non-zero exit status.
Vagrant assumes that this means the command failed!
ARPCHECK=no /sbin/ifup eth1 2> /dev/null
Stdout from the command:
Determining IP information for eth1... failed.
Stderr from the command:
Vagrantfile
# -*- mode: ruby -*-
# vi: set ft=ruby :
# Vagrantfile API/syntax version. Don't touch unless you know what you're doing!
VAGRANTFILE_API_VERSION = "2"
Vagrant.configure(VAGRANTFILE_API_VERSION) do |config|
# All Vagrant configuration is done here. The most common configuration
# options are documented and commented below. For a complete reference,
# please see the online documentation at vagrantup.com.
# Every Vagrant virtual environment requires a box to build off of.
config.vm.box = “devbox”
config.vm.provision :shell, path: "provision.sh"
# Disable automatic box update checking. If you disable this, then
# boxes will only be checked for updates when the user runs
# `vagrant box outdated`. This is not recommended.
# config.vm.box_check_update = false
# Create a forwarded port mapping which allows access to a specific port
# within the machine from a port on the host machine. In the example below,
# accessing "localhost:8080" will access port 80 on the guest machine.
config.vm.network "forwarded_port", guest: 80, host: 80
config.vm.network "forwarded_port", guest: 443, host: 443
# Create a private network, which allows host-only access to the machine
# using a specific IP.
# config.vm.network "private_network", ip: "192.168.33.10"
# Create a public network, which generally matched to bridged network.
# Bridged networks make the machine appear as another physical device on
# your network.
config.vm.network "public_network"
# If true, then any SSH connections made will enable agent forwarding.
# Default value: false
# config.ssh.forward_agent = true
# Share an additional folder to the guest VM. The first argument is
# the path on the host to the actual folder. The second argument is
# the path on the guest to mount the folder. And the optional third
# argument is a set of non-required options.
# config.vm.synced_folder "../data", "/vagrant_data"
# Provider-specific configuration so you can fine-tune various
# backing providers for Vagrant. These expose provider-specific options.
# Example for VirtualBox:
#
# config.vm.provider "virtualbox" do |vb|
# # Don't boot with headless mode
# vb.gui = true
#
# # Use VBoxManage to customize the VM. For example to change memory:
# vb.customize ["modifyvm", :id, "--memory", "1024"]
# end
#
# View the documentation for the provider you're using for more
# information on available options.
# Enable provisioning with CFEngine. CFEngine Community packages are
# automatically installed. For example, configure the host as a
# policy server and optionally a policy file to run:
#
# config.vm.provision "cfengine" do |cf|
# cf.am_policy_hub = true
# # cf.run_file = "motd.cf"
# end
#
# You can also configure and bootstrap a client to an existing
# policy server:
#
# config.vm.provision "cfengine" do |cf|
# cf.policy_server_address = "10.0.2.15"
# end
# Enable provisioning with Puppet stand alone. Puppet manifests
# are contained in a directory path relative to this Vagrantfile.
# You will need to create the manifests directory and a manifest in
# the file default.pp in the manifests_path directory.
#
# config.vm.provision "puppet" do |puppet|
# puppet.manifests_path = "manifests"
# puppet.manifest_file = "default.pp"
# end
# Enable provisioning with chef solo, specifying a cookbooks path, roles
# path, and data_bags path (all relative to this Vagrantfile), and adding
# some recipes and/or roles.
#
# config.vm.provision "chef_solo" do |chef|
# chef.cookbooks_path = "../my-recipes/cookbooks"
# chef.roles_path = "../my-recipes/roles"
# chef.data_bags_path = "../my-recipes/data_bags"
# chef.add_recipe "mysql"
# chef.add_role "web"
#
# # You may also specify custom JSON attributes:
# chef.json = { mysql_password: "foo" }
# end
# Enable provisioning with chef server, specifying the chef server URL,
# and the path to the validation key (relative to this Vagrantfile).
#
# The Opscode Platform uses HTTPS. Substitute your organization for
# ORGNAME in the URL and validation key.
#
# If you have your own Chef Server, use the appropriate URL, which may be
# HTTP instead of HTTPS depending on your configuration. Also change the
# validation key to validation.pem.
#
# config.vm.provision "chef_client" do |chef|
# chef.chef_server_url = "https://api.opscode.com/organizations/ORGNAME"
# chef.validation_key_path = "ORGNAME-validator.pem"
# end
#
# If you're using the Opscode platform, your validator client is
# ORGNAME-validator, replacing ORGNAME with your organization name.
#
# If you have your own Chef Server, the default validation client name is
# chef-validator, unless you changed the configuration.
#
# chef.validation_client_name = "ORGNAME-validator"
end

Answer 1

try to use following string in config file:
config.vm.network "forwarded_port", guest: 80, host: 80
https://docs.vagrantup.com/v2/networking/forwarded_ports.html
in additional you need to enable Public Network in the Vagrantfile
config.vm.network "public_network"
http://docs.vagrantup.com/v2/networking/public_network.html
If that doesnt help, may you please show your Vagrantfile?