The nginx, varnish was working fine after many hours of fussing with configuration files. But I foolishly installed APC and now I'm back to square one. The permalinks fail. The front end of the site appears to load but links to articles fail. But hey - it fails fast http://www.tuxreports.com/ http://www.tuxreports.com/community/ So - can someone suggest a file to look into to figure out why the links no longer are correct? These were the directions I followed (absent APC) this morning and things were working (minus the varnish purge lines file) . http://www.cryptkcoding.com/2011/08/running-wordpress-with-nginx-php-fpm-apc-and-varnish/ Thank you for your guidance.