Server Secuirty - DNS Domains list

why?
it's not dns configuration?
if I will work with external dns servers?
it's big issue, hackers can scan servers with joomla / wordpress sites and hack the sites...

Best Regards,
Star Network.
 
There are two ways they could be getting the information.

One is if you're publishing reverse DNS (rDNS) records for each domain. You shouldn't be; you should only be publishing one rDNS record per IP#.

The other way is to look up every domain, find it's IP# (using dig), and then creating a table.

You can't stop them from doing the second way. Unless of course you want to take out the A record for a domain. That would keep it out of this directory, but would also mean no one else could find the site, either.

Jeff
 
They must be using method 2 you described Jeff.
I just checked on some of my servers and they can also lookup the domains there. However, they are fast because the second server I checked it with, is only installed last week, and also then the domains were moved onto the new server.

We don't use rDNS for all domains, only for both nameservers, nothing else. Just standard DA use of DNS records.
 
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