Xenforo Nginx Rewrite for www

I have a Xenforo installation on a Digital Ocean server. I've used this forum for learning centminmod and nginx. So far I've been unable to get the rewrite to work for www. I've done some searching and reading but not seeing the answer...

Right now it appears in my address bar as this:

http://domain.com/forum/
I want it to be:
http://www.domain.com/forum/

---

I made the change in RED in the config file located at:
/usr/local/nginx/conf/conf.d for that domain

Code:

location /{
   rewrite ^/(.*) http://[COLOR=#ff0000]www.[/COLOR]$server_name/forum/ permanent;
  }

  location /forum/ {
            index index.php index.html index.htm;
            try_files $uri $uri/ /forum/index.php?$uri&$args;

I ran nginx restart and still no noticeable change.

 

That is how I have it now on top:

Code:

# redirect from non-www to www
# uncomment, save file and restart Nginx to enable
#server {
#            listen   80;
#            server_name domain.com;
#            return 301 $scheme://www.domain.com$request_uri;
#       }

server {
  server_name domain.com www.domain.com;

# ngx_pagespeed & ngx_pagespeed handler
#include /usr/local/nginx/conf/pagespeed.conf;
#include /usr/local/nginx/conf/pagespeedhandler.conf;
#include /usr/local/nginx/conf/pagespeedstatslog.conf;

  # limit_conn limit_per_ip 16;
  # ssi  on;

  access_log /home/nginx/domains/domain.com/log/access.log combined buffer=32k;
  error_log /home/nginx/domains/domain.com/log/error.log;

  root /home/nginx/domains/domain.com/public;

  location /{
   rewrite ^/(.*) http://www.$server_name/forum/ permanent;
  }

  location /forum/ {
            index index.php index.html index.htm;
            try_files $uri $uri/ /forum/index.php?$uri&$args;

        }

        location /forum/internal_data/ {
        internal;
        allow 127.0.0.1;
        deny all;
        }

        location /forum/library/ {
        internal;
        allow 127.0.0.1;
        deny all;
        }

  include /usr/local/nginx/conf/staticfiles.conf;
  include /usr/local/nginx/conf/php.conf;
  include /usr/local/nginx/conf/drop.conf;
  #include /usr/local/nginx/conf/errorpage.conf;
}

 

I feel stupid now.. thanks.

I really thought the htaccess inside the forum root was the area to fix this. I've learned something new. Thanks again!