Inherited DNS

[Igmar Palsenberg]

On Fri, 15 Sep 2000, Edmiston, Jerry wrote:

> 
> Recently, I inherited the DNS responsibilities here at work. I've worked
> with DNS before and am familar with the structure and purpose of DNS. But
> some things in this DNS environement are very confusing. Why would a printer
> be defined to DNS?

Names are easier to remember than IP's.

> Why would multiple A records with the same IP number be
> assigned to multiple host names?

Virtual hosting. Putting 300 domains on one IP saves numbers, and me a lot
of work :)

> Why would just about every A record entry
> (and there are alot) have an MX record?

Because the mailserver needs to know who handles mail for that domain /
subdomain. If that domain / subdomain cannot handle mail, no MX entry is
needed. Usual the toplevel domain has a MX record.

> To me these are errors and should be
> corrected. No one will admit to the entries, only pointing to people that
> have long gone, but they keep insisting that they are needed.

They are :)

> Anyway, am I
> missing something or is this truly a cluster of DNS errors. Any help would
> be grealy appreciated. Thanks in advance...



	Igmar