I know there have been a few threads on this before, but I have tried absolutely everything suggested (that I could find) and nothing has worked for me thus far...
W
I am on Ubuntu 16.04 and since 14.04 I've using solution provided by Dave Evans here and it works fine for me.
Install dnsmasq
sudo apt-get install dnsmasq
Create new file localhost.conf under /etc/dnsmasq.d dir with the following line
#file /etc/dnsmasq.d/localhost.conf
address=/localhost/127.0.0.1
Edit /etc/dhcp/dhclient.conf and add the following line
prepend domain-name-servers 127.0.0.1;
(You’ll probably find that this line is already there and you just need to uncomment it.)
Last one is restart the service
sudo systemctl restart dnsmasq
sudo dhclient
Finally, you should check if it's working.
dig whatever.localhost
note:
If you want to use it on your web server, you need to simply change the 127.0.0.0 to your actual IP address.