how to make my DNS server visible to others

Sumit Mehrotra sumit at cs.bu.edu
Fri Jan 26 20:18:52 UTC 2001


Right, on both counts.Maybe I did not make it clear. 

In my case I found that the hostname you register as DNS needs to be part of the domain you want it to be the authority of. But as you rightly said, the same host _cannot_ be part of 100s of domains. 

I found, that if the hostname of the DNS server does not have the suffix of the domain it is authority for, they do not accept the host entry in the registration. One reason for this odd behaviour could be that I did not have the in-addr.arpa name delegated to me.

The workaround I mentioned was merely to register the DNS host as bogus name, but with  _one_ correct and unique IP. So taking the example I gave:

host.domain1.com and host.domain2.com are the same machines with 2 bogus names, just for registrations, and they are registered with the same valid IP address of the host.


This is what I think the registration procedure is. Please, correct me if I am wrong. Sorry, if I misled anyone :(

- Sumit


On Fri, 26 Jan 2001, Barry Margolin wrote:

> In article <94sjpp$226 at pub3.rc.vix.com>,
> Sumit Mehrotra  <sumit at cs.bu.edu> wrote:
> >
> >Yes. You have to register the host on which DNS is running. Infact, I
> >believe the registration process (at least with NSI :) requires you to
> >have the host as part of the domain you want to host.
> 
> There is no such requirement.  Consider all the ISPs who host thousands of
> domains?  Their nameservers aren't in all the domains they're hosting.
> 
> > But there is a cute
> >workaround to this. 
> >e.g if your  host is `host.somedomain.com' and the domains are
> >domain1.com and domain2.com
> >register the host info for each domain respectively as :
> >
> >host.domain1.com  xxx.xxx.xxx.xxx
> >host.domain2.com  xxx.xxx.xxx.xxx
> 
> Since NSI's host registration requires the IP addresses to be unique, this
> obviously wouldn't work.
> 
> -- 
> Barry Margolin, barmar at genuity.net
> Genuity, Burlington, MA
> *** DON'T SEND TECHNICAL QUESTIONS DIRECTLY TO ME, post them to newsgroups.
> Please DON'T copy followups to me -- I'll assume it wasn't posted to the group.
> 
> 
> 




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