I noticed that ANY http request to my server, with a phrase "googlebot" in its useragent string, is getting blocked on the network level (it's not getting logged by Apache, so it's not a matter of .htaccess nor robots.txt misconfiguration).
And that happens only to successful "200" connections ("404" not found and "301" redirects are working fine).
When I run:
netstat -nat |grep my.ip.here
the connection is only in TIME_WAIT state and then gone.
I flushed firewall and it didn't help much.
Other domains on the server are working fine...
That's really bizarre.
Do you have an idea what's causing it?
I think the server might have been compromised by a malicious hacker who wanted to cut off googlebot.. does anyone know how to fix it?