Authoritative for what domains?
barmar at genuity.net
Mon Feb 25 19:57:05 UTC 2002
In article <a5bf5c$aqa at pub3.rc.vix.com>, <mrgigabyte at hotmail.com> wrote:
>The reason I would like to know is because someone has contacted some
>of my customers, and offered them a better deal on hosting. I don't
>lose very many customers as it is, I expect a few to leave every now
>and then despite my efforts to cater to their needs.
>However, I have had a small jump in cancellations recently. I suspect
>someone got a list of the domains I am authoritative for and contacted
>my clients directly. I suspected it was some form of query against my
>nameservers which returned the information.
More likely they got the list from a domain registrar. With the command
"whois server <handle>" you can query the NSI whois server to get up to 50
domains that are delegated to the specified server. Some organizations
have gotten approval to download the entire .COM domain, so they can search
it for all domains that are delegated to your servers.
Barry Margolin, barmar at genuity.net
Genuity, Woburn, MA
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