This Ars Technica article is where I learned how to use nginx. Lee
Hutchinson does a good job explaining all that.

http://arstechnica.com/gadgets/2012/11/how-to-set-up-a-safe-and-secure-web-server/

On Mon, May 13, 2013 at 4:02 AM, Shohreh <nginx-forum@nginx.us> wrote:
> I found a work-around: Reading "/var/log/nginx/error.log" includes a warning
> that Nginx can't find "/usr/share/nginx/html/favicon.ico", so for some
> reason, Nginx uses /usr/share/nginx/html/ instead of /var/www.
>
> I'm confused about the multiple configuration files used by Nginx:
>
> /etc/nginx.conf
> /etc/conf.d/
> /etc/sites-available/
> /etc/sites-enabled/
>
> Why are there more than one?
>
> Thank you.
>
> Posted at Nginx Forum: http://forum.nginx.org/read.php?2,239114,239115#msg-239115
>
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> nginx mailing list
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