rewriting rule: cut www from hostname

how remove www prefix from all my hostname

[xname]

Hello,
on my server with Red Hat Enterprice and Apache 1.34 I need to use Rewrite Module for a specific domain so that when one use the url:
http://www.account.domain.com it automatically changes in http://account.domain.it... I suppose this is possibile...but I don't know what is the exact rule and where to put it into httpd.conf.
Can you help me?
Thank you

[moltar]

Welcome to WebmasterWorld, xname!

You can use the following rewrite rule to do what you want:

RewriteEngine On 
RewriteCond %{HTTP_HOST} ^www\. 
RewriteRule (.*) http://example.com/$1 [R=301,L]

Where http://example.com/ is obviosly your domain :)

[xname]

Hello moltar, thank you.

I was trying your suggested rule. It works well except for a double // at the end of the domain:
---> http://example.com//
I think it would be good to have only one / at the and, do you think that's possibile?

[moltar]

:) Ya I guess it'd be better! I haven't tested this, I actually rewrote this from a reverse code that I use - to redirect from non-www to www version. I just like how www looks.

Just drop the / from the redirect, it should work, but you better test it.

Just for the reference, I know it's not what you want, but if someone else will be looking in this thread...

RewriteEngine On
RewriteCond %{HTTP_HOST} !^www\.
RewriteRule (.*) http://www.%{HTTP_HOST}/$1 [R=301,L]

[edited by: jdMorgan at 1:28 am (utc) on Mar. 26, 2006]
[edit reason] Formatting. [/edit]

[xname]

Perfect moltar. Here is the working rule you suggested:

RewriteEngine On 
RewriteCond %{HTTP_HOST} ^www\. 
RewriteRule (.*) http://example.com$1 [R=301,L]

[jdMorgan]

Note that the problem in this thread was caused by the fact that in a per-directory (.htaccess) context, the local URL-path 'seen' by RewriteRule is localized to the directory in which the .htaccess file resides. So the following code snippets do exactly the same thing:

In httpd.conf:

RewriteEngine on
RewriteCond %{HTTP_HOST} ^www\.
RewriteRule (.*) http://example.com$1 [R=301,L]

Alternate form for httpd.conf:

RewriteEngine on
RewriteCond %{HTTP_HOST} ^www\.
RewriteRule [b]^/[/b](.*) http://example.co[b]m/$1[/b] [R=301,L]

In .htaccess:
[/code]
RewriteEngine on
RewriteCond %{HTTP_HOST} ^www\.
RewriteRule (.*) http://example.com/$1 [R=301,L]
[/code]
Jim