[PLUG] Internet growth, RFC 1918 addressing...

someone plug_0 at robinson-west.com
Thu Nov 16 04:12:04 UTC 2006


For private lans with Internet connectivity addressed using an RFC 1918
block, are there any reserved domain names that will never be used on
the Internet?  Are pri, lan, home, ... reserved domain names that people
setting up dns for RFC 1918 networks are allowed to use?  How do you
program bind 9 to realize it shouldn't ask ANY Internet name server
to resolve a particular domain name while keeping this a possibility
for other domain names?  If it is known whether a local name verses 
a remote one is being searched for, there could theoretically be
separate domain systems ( say the global Internet one, and a local
private one ) where the system to use could be indicated at the time 
a program or user queries for a name to be resolved.  This might call
for standard changes to the resolver libraries unfortunately unless 
it can be done another way.  It seems that there really should be a
standard way to query dns nameservers so that one can indicate whether
they are looking for a local name or perhaps a remote name on an
internet/intranet other than the Internet.  Naming whole domains at 
once alone won't be enough I bet as names are exhausted.  Having 
enough physical numbers is only half the problem of addressing 
every Internet connected host.  You can go from 32 billion ip 
addresses to 8 times that or more, but eventually how do you 
come up with enough unique names for all those ips?  As the Internet
grows larger, how long will it be before there is pressure to break
it into multiple smaller networks because it is just too darn big?

Is it standard practice to use one's globally registered domain name
to name hosts connected via RFC 1918 subnets?  Who wants an ip address
without a domain name?  Even if you can't be seen on the Internet, that
doesn't mean you don't want to be seen on your local TCP/IP network.

Using views in bind 9 is an interesting feature, but it feels like a
kludge where I couldn't find any document covering this option on ISC's
web site.

     --  Michael C. Robinson




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