[root@web01 ]# cat /app/server/nginx/conf/rewrite/default.conf

#rewrite ^/index\.html /index.php last;

#if (!-e $request_filename) rewrite ^/(.*)$ index.php last;

#if (!-e $request_filename) {rewrite ^/(.*)$ /index.php last;}

#if (!-e $request_filename) {return 404;}

if ($http_user_agent ~ Firefox) {rewrite ^(.*)?$ /nginx-Firefox/$ break;}

if ($http_user_agent ~ MSIE) {rewrite ^(.*)$ /nginx-MSIE/$ break;}

#rewrite ^/(\d+)/(.+)/ /$/$ last;

#####################下面的补充说明########################

[root@web01 ]# cat /app/server/nginx/conf/vhosts/default.conf

server {

        listen       ;

        server_name  espressos.cn;

    index index.php index.htm index.html;

    root /app/www/default;

    location ~ .*\.(sh|bash)?$

    {

        return ;

    }

#    if (!-e $request_filename) {

#        rewrite ^/(.*)$ /index.php last;

#        }

    location ~ .*\.(php|php5)?$

    {

        #fastcgi_pass  unix:/tmp/php-cgi.sock;

        fastcgi_pass  127.0.0.1:;

        fastcgi_index index.php;

        include fastcgi.conf;

    }

    location ~ .*\.(gif|jpg|jpeg|png|bmp|swf)$

    {

        expires 30d;

    }

    location ~ .*\.(js|css)?$

    {

        expires 1h;

    }

    include /app/server/nginx/conf/rewrite/default.conf;

    access_log  /app/log/nginx/access/default.log;

}

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[root@web01 ]# tree /app/www/default/

/app/www/default/

├── index.php

├── nginx-Firefox

│   └── index.php

├── nginx-MSIE

│   └── index.php

└── ss

    └──

        └── index.php

 directories,  files

[root@web01 ]# cat /app/www/default/nginx-Firefox/index.php

Firefox

<?php phpinfo();

[root@web01 ]# cat /app/www/default/nginx-MSIE/index.php

MSIE

<?php phpinfo();

[root@web01 ]#