Split DNS and FAQ

[Adam Lang]

I read this section in the FAQ:

Question 5.22.  DNS in firewalled and private networks

My question is in regards to this part:

"Private DNS - resolves names from DOMAIN.COM for hosts inside the
  private network. If asked for a name outside DOMAIN.COM, they should
  forward the request to the public DNS (forwarders line should be used in
  the boot file).  They should NEVER contact a root DNS on the Internet."

Why is this?  Is it just because you are assuming the public DS may have a
cached answer already and it will save query time and bandwidth?


Adam Lang
Systems Engineer
Rutgers Casualty Insurance Company
http://www.rutgersinsurance.com