How to enable internet access inside Vagrant?

Question

If I run curl google.com, I can't see the output, only a blank page. My Vagrantfile contains:

Vagrant.configure("2") do |config|   config.vm.box = "trumobi"  #config.vm.box_url = "http://192.168.136.129/package.box"   config.ssh.default.username = "trumobi"   config.vm.network :public_network   config.vm.network :forwarded_port, host: 8000, guest: 8000 end 

Answer 1

If you are using Vagrant + VirtualBox + Ubuntu, you might want to add the following block to your VagrantFile:

config.vm.provider "virtualbox" do |v|     v.customize ["modifyvm", :id, "--natdnshostresolver1", "on"]     v.customize ["modifyvm", :id, "--natdnsproxy1", "on"] end 

If you are using ubuntu, and you think your firewall is on, here's how you turn off the firewall:

sudo ufw disable 

Answer 2

This happens sometimes for me if I switch the host network connection, like disconnecting my laptop Ethernet cable and start using the wireless network. I found that rebooting the Vagrant vm (vagrant halt, vagrant up) fixes things.