DNS Resolution Issue Http:// works but www. doesn't

English Network/Internet
1

cant get my web server to resolve to my www.domain.com. it resolves when I enter http://domain.com. any ideas anyone??

2

Ok, that still leaves two combinations. What happens if you try these two in your web browser:

http://www.domain.com/
domain.com
3

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The ‘http://’ part on front has nothing to do with anything (or
shouldn’t). I presume this is for a domain of yours. If you own
‘domain.com’ then it is up to you to also resolve ‘www.domain.com’ to
something. If you do not own ‘domain.com’ then you have no say over
‘www.domain.com’. In this particular case it would be beneficial to use a
DNS tool to troubleshoot a DNS issue and not your browser:

cat /etc/resolv.conf #Get your host’s DNS confirmation
dig domain.com #Resolve domain.com
dig www.domain.com #Resolve the ‘www’ A record for domain.com

Every entry for a domain (or subdomain) must be setup explicitly. ‘www’
is a standard convention for a web server but that’s just because
everybody is used to doing that; there is no rule in DNS stating that if
domain.com works then www.domain.com works.

Good luck.

auctionrunner wrote:
> cant get my web server to resolve to my www.domain.com. it resolves
> when I enter http://domain.com. any ideas anyone??
>
>
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4

auctionrunner wrote:

> cant get my web server to resolve to my www.domain.com. it resolves
> when I enter http://domain.com. any ideas anyone??

Tell domain dns admin to setup an alias (cname) or just an “A” record
pointing to the IP :slight_smile:

Greetings

–
Camaleón

5

An A record pointing to the IP must be already there and that is why http://domain.com is working.
A CNAME record for www should be added.

6

syampillai wrote:

> An A record pointing to the IP must be already there and that is why
> http://domain.com is working.
> A CNAME record for www should be added.

Well, I don’t mean that :wink:

There are 2 ways for achieving this:

Using canonical name

IN A 192.168.1.1
www IN CNAME somesamplesite.com.

Using A record

IN A 192.168.1.1
www IN A 192.168.1.1

But both ways need to be explicitly defined.

Greetings,

–
Camaleón