On Jan 29, 2014, at 23:52 , Igor Sverkos wrote:

> Hi,
>
> let assume that we run the following domains:
>
> - agoodexample.org
> - agoodexmaple.com
> - agoodexample.net
> - a-good-example.org
> - a-good-example.com
> - a-good-example.net
>
> Our main site should be www.a-good-example.com -- people coming from any
> other mentioned domain/combination should be redirected to the main site.
>
> I could now write a single server block like
>
> server {
> // ...
> server_name ~^(?:www\.)?a[-]?good-example\.(?:org|net)$
> ~^ a[-]?good-example\.com $;
>
> rewrite ^ $scheme://www.a-good-example.com $request_uri permanent;
> }
>
> I am using regular expressions as server_name values, I think you get the
> point.
>
> I could also avoid regular expressions:
>
> server {
> // ...
> server_name agoodexample.org
> a-good-example.org
> www.agoodexample.org
> www.a-good-example.org
> agoodexample.net
> a-good-example.net
> www.agoodexample.net
> www.a-good-example.net
> agoodexample.com
> www.agoodexample.com
> a-good-example.com;
>
> rewrite ^ $scheme://www.a-good-example.com $request_uri permanent;
> }
>
>
> Q1: Are both configurations equal or is there any performance difference?
> E.g. would you recommend one configuration more than the other?

The second is faster but I believe performance is negligible.
And it's better to use

return 301 $scheme://www.a-good-example.com/$request_uri;

> Q2: When using regular expressions in server_name, the regular expression
> will also appear in the error_log. Is it possible to see the actual
> name instead the expression in the log?
>
>
> I am using nginx-1.4.x with pcre-jit enabled.

$host.


--
Igor Sysoev
http://nginx.com

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