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Redirect from www to non-www using Nginx
written by Steven Bristol on April 9th, 2008
Let’s say you want to redirect users from the www sub-domain of your website to direct access via the non-sub-domain url. Nginx makes it really easy to do.
Just add this to your server{} block:
if ($host != 'your_domain.com' ) {
rewrite ^/(.*)$ http://your_domain.com/$1 permanent;
}
This actually will redirect any sub-domain to the non-sub-domain url.
But what if, like Less Accounting, your site has user accounts for sub-domains or you have other valid sub-domains, but you still want to get users away from www?
Just add this to your server{} block:
if ($host = 'www.your_domain.com' ) {
rewrite ^/(.*)$ http://your_domain.com/$1 permanent;
}
11 Responses to “Redirect from www to non-www using Nginx”
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·
Nice post and it’s worth noting that those redirects should always be 301s unless you know what you’re getting into.
@she-ra
Good point. Actually, the word “permanent” in the config snippet tells Nginx to do a 301, not a 302.
steve
I just stick it in its own server block..
server { listen 80; server_name www.oftengloomy.com; rewrite ^/(.*) http://oftengloomy.com permanent; }
@Brennan,
That’s a good idea.
I prefer Brennan’s way, and used it on several sites.
@ashchan,
Thanks for your comment. :)
steve
Thanks for the post. Igor Sysoev states here that the $1 can be replaced by $uri so that the rewrite could be written as “rewrite ^ http://your_domain.com/$uri permanent;”.
@Ronnie,
Thanks for the tip! :)
A small correction to my previous comment: There should be no slash before $uri. The rewrite line should be “rewrite ^ http://your_domain.com$uri permanent;”. The previous line works, but it will produce a double slash because $uri contains a leading slash.
Does nginx support regex on this statement? What if I have a few vhosts and want to redirect it just once, instead of multiple times? Is it possible?
@Hendry,
It does support regex. I’m not sure I understand your second question, but you may have multiple if/redirect statements.
steve