Maximum number of DNS servers

[Darren Loher]

Level 3 has 30 DNS servers that are authoritative for our
in-addr.arpa domains.  But they all share just two IP addresses. 
:)

I also think that using 2 digits is a good idea.  It is a small
amount of overhead in your SQL database.

-Darren

-- 
Darren Loher                 Level 3 Communications
dploher at level3.net           Global Data Architecture
720-888-2847 (office)        "Sed quis custodiet ipsos custodes?"

On Wed, Apr 26, 2000 at 08:32:36PM -0400, Mark Kosters wrote:
> Paul is right - you'll need two digits. Very few servers 10 or more
> but those who do should not be constrained by some limitation in the
> database. Plus when EDNS comes out, non-secure servers may want more.
> 
> Mark
> 
> On Thu, Apr 27, 2000 at 09:21:22AM +1000, Paul Gampe wrote:
> > The response to a DNS query for NS records will need to fit into a udp
> > packet which limits you to 512 octets. [rfc1035]  The root servers have
> > the same constraint and cannot exceed 13, so it would be highly unlikely
> > for you to need more then 2 digits I imagine.
> 
> -- 
> 
> Mark Kosters             markk at netsol.com       Network Solutions, Inc.
> PGP Key fingerprint =  1A 2A 92 F8 8E D3 47 F9  15 65 80 87 68 13 F6 48