Thank you all for helping me. I didn't clearly about why browsers didn't
recognize my SSL.
If I remove:
location / {
rewrite ^/ http://$http_host$request_uri permanent;
}
The SSL was working fine, I think there were some objects still linking
using http. Is there any help to solve the problem?
Posted at Nginx Forum: http://forum.nginx.org/read.php?2,214981,216507#msg-216507