What are you trying to do? Usually nginx uses virtual hosts ie: http://www.yourname.com to know which content to display.

so in the browser my site renders correctly with

http://yourname.com

and redirects http://www.yourname.com to -> http://yourname.com (all good)

and when I drop my ip into the browser http://000.000.000.00/ my site is rendering but I would like it to redirect to http://yourname.com. This should be done with a rewrite? I tried whats in the wordpress codex:

server {
        server_name  _;
        rewrite ^ $scheme://yourname.com$request_uri redirect;
}

no dice.

here is my config:

fastcgi_cache_path /etc/nginx/cache levels=1:2 keys_zone=MYAPP:100m inactive=60m;
fastcgi_cache_key "$scheme$request_method$host$request_uri";

server {
        server_name  _;
        rewrite ^ $scheme://yourname.com$request_uri redirect;
}

server {
    # Base info
        listen 80 default_server;
        listen [::]:80 default_server ipv6only=on;

            # Initial location block for setup. if using wp super cache and in this case I am the 
            # try_files directive is replaced with supercache location block at the end.
            # the root and index directives are pulled out and placed just below. 

            # location / {
                    # root   /var/www/yoursite.com;
                    # index  index.php index.html index.htm;

                    # WordPress permalinks configuration
                    #   try_files $uri $uri/ /index.php?$args;
            # }

        root /var/www;
        index index.php index.html index.htm;

    # Make site accessible from http://localhost/
        server_name yourname.com;

  # Browser caching
        location ~*  \.(jpg|jpeg|png|gif|ico|css|js|svg)$ {
        expires 365d;
        }

      location ~*  \.(pdf)$ {
        expires 30d;
        }

    # Nginx Error Handling  
        error_page 404 /404.html;
        error_page 500 502 503 504 /50x.html;
        location = /50x.html {
            root /var/www;
        }

    # Base server side caching  
        location ~ \.php$ {
            try_files $uri =404;
            fastcgi_split_path_info ^(.+\.php)(/.+)$;
            fastcgi_pass unix:/var/run/php5-fpm.sock;
        fastcgi_index index.php;
        include fastcgi_params;
        fastcgi_cache MYAPP;
        fastcgi_cache_valid 200 60m;
        }

    # Security
        # Block download agenta
         if ($http_user_agent ~* LWP::Simple|wget|libwww-perl) {
                return 403;
         }

        # Block some nasty robots
         if ($http_user_agent ~ (msnbot|Purebot|Baiduspider|Lipperhey|Mail.Ru|scrapbot) ) {
                return 403;
         }

      # Deny referal spam
         if ( $http_referer ~* (jewelry|viagra|nude|girl|nudit|casino|poker|porn|sex|teen|babes) ) {
                return 403; 
         }

      # Prevent hotlinking
      location ~ .(gif|png|jpe?g)$ {
         valid_referers none blocked yourname.com *.yourname.com;
         if ($invalid_referer) {
            return   403;
        }
        }

    # WP Super Cache rules.
    # Based on http://codex.wordpress.org/Nginx
    # Designed to be included from a 'wordpress-ms-...' configuration file.

        set $cache_uri $request_uri;

        # POST requests and urls with a query string should always go to PHP
            if ($request_method = POST) {
                    set $cache_uri 'null cache';
            }

            if ($query_string != "") {
                    set $cache_uri 'null cache';
            }   

        # Don't cache uris containing the following segments
            if ($request_uri ~* "(/wp-admin/|/xmlrpc.php|/wp-(app|cron|login|register|mail).php|wp-.*.php|/feed/|index.php|wp-comments-popup.php|wp-links-opml.php|wp-locations.php|sitemap(_index)?.xml|[a-z0-9_-]+-sitemap([0-9]+)?.xml)") {
                    set $cache_uri 'null cache';
            }   

        # Don't use the cache for logged in users or recent commenters
            if ($http_cookie ~* "comment_author|wordpress_[a-f0-9]+|wp-postpass|wordpress_logged_in") {
                    set $cache_uri 'null cache';
            }

        # Use cached or actual file if they exists, otherwise pass request to WordPress
            location / {
            try_files /wp-content/cache/supercache/$http_host/$cache_uri/index.html $uri $uri/ /index.php?$args ;
            }
}