Dns add www prefix?

Question

Possible Duplicate:
apache redirect from non www to www

Is it possible to configure DNS to add www. prefix to the domain name?

score 1 · Answer 1 · answered Dec 24 '11 at 13:06

1

You should add a NS A entry to the DNS record for both normalurl.com and www.normalurl.com
Enable mod_rewrite on Apache and create a .htaccess file with the following entries:

RewriteEngine On

RewriteCond %{HTTP_HOST} !^www.normalurl.com$ [NC]
RewriteRule ^(.*)$      http://www.normalurl.com/$1 [L,R]

answered Dec 24 '11 at 13:06

bbb

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`.htaccess` is bad. Better to add some mod_alias stuff to the vhost configuration file, in order to be sure redirection always happens / avoid infinite redirect-loops, etc. Plus, that's way much easier to read configuration, if it's all in one place.. – redShadow Dec 24 '11 at 13:10
This is correct if you do have access to the vhost configuration; it might be an issue on many shared hosting environments, though. – bbb Dec 24 '11 at 13:31

score 1 · Accepted Answer · answered Dec 24 '11 at 13:07

Nope. You have to configure the webserver at yourdomain.com to redirect to www.yourdomain.com.

For example, on apache, you can use this configuration (using mod_alias):

<VirtualHost *:80>
  ServerName www.yourdomain.com
  ## Actual configuration here...
</VirtualHost>

<VirtualHost *:80>
  ## redirect non-www to www
  ServerName www.yourdomain.com
  ServerAlias yourdomain.com

  RedirectMatch permanent ^(.*) http://www.yourdomain.com$1
</VirtualHost>

score 0 · Answer 3 · edited May 23 '17 at 12:18

0

A DNS response contains a mapping of a domain name to an IP address. While you could alias example.net to www.example.net with a CNAME record, this would not be visible for the user.

Most likely, you want to configure your web server to send an HTTP 301 redirect to the correct URL.

edited May 23 '17 at 12:18

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answered Dec 24 '11 at 13:06

phihag

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Dns add www prefix?

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