Since January 2002 you can have more than 1 nameserver host referring to a single IP address. This was announced - note this is ONLY for the Com/Net/Org (maybe not Org once it moves?) namespace. Other TLDs still enforce a 1 to 1 relationship
Charles Daminato TUCOWS Product Manager [EMAIL PROTECTED] On Thu, 7 Nov 2002, George Kirikos wrote: > Hello, > > Is it documented anywhere that we're now allowed to have 2 nameserver > hosts, e.g. ns1.domain1.com and ns1.domain2.com point to the same IP > address, e.g. 10.0.0.1 ? (obviously, that one won't be a good one to > use for the web) I recall at one time, only a 1 to 1 mapping was > allowed? > > If we already have a nameserver, say at ns1.domain1.com, do we need to > do anything special in the configuration of the physical nameserver, if > we simply create a new nameserver record of ns1.domain2.com and point > it at that IP address, e.g. for vanity? (e.g. if one has DNS hosting at > UltraDNS, with nameservers: > > udns1.ultradns.net 204.69.234.1 > udns2.ultradns.net 204.74.101.1 > > and we simply create a 'vanity' privately-branded nameserver instead > of: > > ns1.company.com 204.69.234.1 > ns2.company.com 204.74.101.1 > > would that "work", without having to notify UltraDNS (i.e. is the > hostname used at all, or just purely the IP address?; for webhosting, > the hostname is used, e.g. name-based hosts in http 1.1) > > Sincerely, > > George Kirikos > http://www.kirikos.com/ > > __________________________________________________ > Do you Yahoo!? > U2 on LAUNCH - Exclusive greatest hits videos > http://launch.yahoo.com/u2 >
