O que você postou é realmente confuso. O Nginx processa diretivas de localização em uma ordem específica e corresponde apenas a uma (a menos que seja reescrito). Pare um pouco, apague o que você tem e tente isto:
server {
listen 80;
server_name lc.wp.com;
index index.php index.html;
access_log /usr/local/var/log/nginx/lc.wp.access.log;
error_log /usr/local/var/log/nginx/lc.wp.error.log debug;
root /usr/local/www/playground/php/wordpress/;
location / {
try_files $uri $uri/ @wordpress;
}
location @wordpress {
rewrite ^/([_0-9a-zA-Z-]+/)?files/(.+) /wp-includes/ms-files.php?file=$2 last;
rewrite ^/([_0-9a-zA-Z-]+/)?wp-admin$ /$1wp-admin/ permanent;
rewrite ^/[_0-9a-zA-Z-]+/(wp-(content|admin|includes).*) /$1 last;
rewrite ^/[_0-9a-zA-Z-]+/(.*\.php)?$ /$1 last;
rewrite .* /index.php last;
}
location ~ \.php$ {
if (!-e $request_filename) {
rewrite ^/[_0-9a-zA-Z-]+/(wp-(content|admin|includes).*) /$1 last;
rewrite ^/[_0-9a-zA-Z-]+/(.*\.php)?$ /$1 last;
rewrite .* /index.php last;
return 404;
}
fastcgi_index index.php;
fastcgi_intercept_errors on;
fastcgi_split_path_info ^(.+\.php)(.*)$;
fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
fastcgi_param PATH_INFO $fastcgi_path_info;
fastcgi_pass 127.0.0.1:9000;
fastcgi_param QUERY_STRING $query_string;
fastcgi_param REQUEST_METHOD $request_method;
fastcgi_param CONTENT_TYPE $content_type;
fastcgi_param CONTENT_LENGTH $content_length;
fastcgi_param REQUEST_URI $request_uri;
fastcgi_param DOCUMENT_URI $document_uri;
fastcgi_param DOCUMENT_ROOT $document_root;
fastcgi_param SERVER_PROTOCOL $server_protocol;
fastcgi_param GATEWAY_INTERFACE CGI/1.1;
fastcgi_param SERVER_SOFTWARE nginx/$nginx_version;
fastcgi_param REMOTE_ADDR $remote_addr;
fastcgi_param REMOTE_PORT $remote_port;
fastcgi_param SERVER_ADDR $server_addr;
fastcgi_param SERVER_PORT $server_port;
fastcgi_param SERVER_NAME $server_name;
}
}