> If a server has `0.0.0.0 google.com` in /etc/hosts and Google tries connecting... what happens? Timed out connection? The usual thing happens. Host lookup is

> If a server has `0.0.0.0 google.com` in /etc/hosts and Google tries connecting... what happens? Timed out connection? The usual thing happens. Host lookup is not a firewall mechanism for incoming connections.