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There are plenty of examples here of how to redirect example.com to www.example.com, but I'm looking for a generic version, so the same htacess code would also work to redirect example.net to www.example.net and example.org to www.example.org. I'm sure this exists (indeed, I have a vague memory I've done it before, somewhere), but I'm fairly unfamiliar with htaccess regex.

I need a way to match the condition HTTP_HOST does not begin with www..

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2 Answers 2

up vote 2 down vote accepted
#Enable RewriteEngine
RewriteEngine On

# For a way to check HTTP_HOST not beginning with www:    
RewriteCond %{HTTP_HOST} !^www [nc]

# As ! don't set backreferences we use this to match the hostname we need
RewriteCond %{HTTP_HOST} ^(.*)$ [nc]

# For the Redirect itself:
RewriteRule ^(.*)$ http://%1/$1 [R=301,L]
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This is breaking on me, redirecting to http:///. Could this be because I have a three-part domain name (draft.example.net to www.draft.example.net)? –  TRiG Nov 8 '10 at 13:02
    
I think the backreference to %1 did not work correctly. You might try with the updated code snippet. –  pacey Nov 8 '10 at 13:17
    
Thanks. I'll test that as soon as I can. (FTP server is down right now.) –  TRiG Nov 10 '10 at 12:04

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