now i use Centos5.2/nginx-0.8.41/php5.2.13, --with-http_stub_status_module --with-http_ssl_module --with-http_sub_module but I found HttpSubModule/sub_filter can't work when gzip open. a bug? thank you Posted at Nginx Forum: http://forum.nginx.org/read.php?2,100183,100183#msg-100183