"WPMU only works without the port number in the URL."

server { listen 80; server_name xx.yy.com; location / { root /home/monkeyking/public_html; index index.html;

if ($query_string !~ ".*s=.*") { rewrite ^(.*) /wp-content/cache/supercache/$http_host/$1index.html; }

if ($http_cookie !~ "^.*comment_author_.*$" ) { rewrite ^(.*) /wp-content/cache/supercache/$http_host/$1index.html; }

if ($http_cookie !~ "^.*wordpressuser.*$" ) { rewrite ^(.*) /wp-content/cache/supercache/$http_host/$1index.html; }

if ($http_cookie !~ "^.*wp-postpass_.*$" ) { rewrite ^(.*) /wp-content/cache/supercache/$http_host/$1index.html break; }

error_page 404 = @tricky; }

location @tricky { proxy_pass http://xx.yy.com:81; }

error_page 500 502 503 504 /50x.html; location = /50x.html { root html; } }

server { listen 81; server_name xx.yy.com; access_log logs/monkeyking.access.log;

location / { root /home/monkeyking/public_html; index index.php;

rewrite ^.*/files/(.*) /wp-content/blogs.php?file=$1;

if (!-e $request_filename) { rewrite ^.+?(/wp-.*) $1 last; rewrite ^.+?(/.*\.php)$ $1 last; rewrite ^ /index.php last; } }