How to block ESXi from seeing the Internet?

[hack3rcon]

Hello.

I have VMware ESXi 6.5 and I don't like it can't see the Internet? How can I block it? Can I do it via "DNS" or..?

Thank you.

[rcporto]

You can just block the ESXi IP in your network firewall, if you don't have one, another way is remove the default gateway from ESXi IP settings, with that your ESXi will not be able to reach different networks, including the internet. Removing the DNS settings will avoid name resolution, but your ESXi will still be able to reach internet if point to IP address instead of DNS names.

[hack3rcon]

You mean is "/etc/resolv.conf" ?