Apparently it is more than DNS. Routing tables have been changed so DNS servers on the Internet are unable to get to Facebook's authoritative DNS servers which are trusted by all other DNS servers to provide the correct name/IP address resolution.
But apparently you can't even get to Facebook with an IP address. This is more than a DNS issue.
This is normal. Many web servers are configured to reject all requests which don't have a 'Host:' header, or where the header is wrong. This would happen when manually typing in an IP address
Apparently it is more than DNS. Routing tables have been changed so DNS servers on the Internet are unable to get to Facebook's authoritative DNS servers which are trusted by all other DNS servers to provide the correct name/IP address resolution.
But apparently you can't even get to Facebook with an IP address. This is more than a DNS issue.
https://twitter.com/briankrebs/status/1445081561536339970
This is normal. Many web servers are configured to reject all requests which don't have a 'Host:' header, or where the header is wrong. This would happen when manually typing in an IP address