CNAME or A record?

[Jukka Pakkanen]

I think it's splitting hair but cname might be a bit more efficient. At 
least in the webserver end.

In practise, I don't think there's a real difference. You can choose 
which ever feels better :)

Jukka

28.9.2011 17:36, feralert kirjoitti:
> Thanks Jeff,
>
> But I really only wrote that as an example :) . The real question is
> what is best or what is recommended, two A RR (one for domain, one for
> www) or a single A RR for domain and a CNAME RR for www, is one way
> better than the other or can I choose either way?
>
> Cheers!,
> Fred.
>
>
>
> On Wed, Sep 28, 2011 at 4:30 PM, Lightner, Jeff<JLightner at water.com>  wrote:
>> If you set your SOA properly to use "@" (which means "this zone") your A records should be:
>>
>> domain.com.             A       1.1.1.1
>> www                     A       1.1.1.1
>>
>> The SOA should append the "domain.com" to every record not terminated by a dot so that "www" is read as "www.domain.com".  Similarly you put a dot at the end of domain.com A record to prevent it from being appended and read as domain.com.domain.com.
>>
>>
>>
>>
>>
>> -----Original Message-----
>> From: bind-users-bounces+jlightner=water.com at lists.isc.org [mailto:bind-users-bounces+jlightner=water.com at lists.isc.org] On Behalf Of feralert
>> Sent: Wednesday, September 28, 2011 10:20 AM
>> To: bind-users at isc.org
>> Subject: CNAME or A record?
>>
>> Hi all,
>>
>> I'm sure this has been asked trillions of times but since I couldn't
>> find any concrete answer/reference in google I am asking you guys in
>> this list. Sorry if anyone thinks this a dumb question or something
>> very obvious.
>>
>> The thing is that i want users redirected to 'www.domain.com' even
>> when they just type the domain name 'domain.com'.
>> In order to do so I am not sure if its best to have one A RR for each
>> or have an A RR for the domain and a CNAME RR pointing to 'domain.com'
>> for 'www.domain.com'.
>>
>>
>> domain.com           A            1.1.1.1
>> www.domain.com   A            1.1.1.1
>>
>> OR
>>
>> domain.com           A            1.1.1.1
>> www.domain.com   CNAME  domain.com
>>
>>
>> Any help appreciated.
>>
>>
>> Thanks,
>> Fred
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