Page showing without WWW.

Hey.

Well.. My site is showing without WWW.. It's showing like this http://social-bombers.com  

I have already contacted my hosting provider, but they said that it has something to do with dolphin, that it redirects it from http://www.social-bombers.com, to http://social-bombers.com

How i can fix the problem?

yes, change this file /inc/header.inc.php

Look for 

$site['ver']               = '7.0';

$site['build']             = '9';

$site['url']               = "http://yoursite.com/";

change to   $site['url']               = "http://www.yoursite.com/";

$admin_dir                 = "administration";

$iAdminPage= 0;

$site['url_admin']         = "{$site['url']}$admin_dir/";

save and clear cache

open your inc/header.inc.php file and change the site address there..

Good luck

EDIT:I was typing when newton27 posted..lol

 lol

www is obsolete and not even need any longer. www is a subdomain in essence, and really has no bearing. 

Didn't we have a conversation recently where you argued for www?

I agree, it's not really needed and the current trend is to drop it.  But it's still a personal choice.  A good web server configuration should be able to adapt to www and non-www (a bad configuration would treat the two as different sites).

 not at all, i could care less about a www, matter of fact all that is required to be entered in the address bar is the domain name. http which is the protocol is understood, www is an aliased named, that is no longer required.

however, most people use the search bar to put the domain name in, then click on a returned link, since the majority are clueless on even how to use a search engine or browser.