nginx安装随附的/etc/nginx/sites-available/default文件具有以下内容：
# You may add here your # server { # ... # } # statements for each of your virtual hosts to this file ## # You should look at the following URL's in order to grasp a solid understanding # of Nginx configuration files in order to fully unleash the power of Nginx. # http://wiki.nginx.org/Pitfalls # http://wiki.nginx.org/QuickStart # http://wiki.nginx.org/Configuration # # Generally, you will want to move this file somewhere, and start with a clean # file but keep this around for reference. Or just disable in sites-enabled. # # Please see /usr/share/doc/nginx-doc/examples/ for more detailed examples. ## server { listen 80 default_server; listen [::]:80 default_server ipv6only=on; root /usr/share/nginx/html; index index.html index.htm; # Make site accessible from http://localhost/ server_name localhost; location / { # First attempt to serve request as file, then # as directory, then fall back to displaying a 404. try_files $uri $uri/ =404; # Uncomment to enable naxsi on this location # include /etc/nginx/naxsi.rules } # Only for nginx-naxsi used with nginx-naxsi-ui : process denied requests #location /RequestDenied { # proxy_pass http://127.0.0.1:8080; #} #error_page 404 /404.html; # redirect server error pages to the static page /50x.html # #error_page 500 502 503 504 /50x.html; #location = /50x.html { # root /usr/share/nginx/html; #} # pass the PHP scripts to FastCGI server listening on 127.0.0.1:9000 # #location ~ \.php$ { # fastcgi_split_path_info ^(.+\.php)(/.+)$; # # NOTE: You should have "cgi.fix_pathinfo = 0;" in php.ini # # # With php5-cgi alone: # fastcgi_pass 127.0.0.1:9000; # # With php5-fpm: # fastcgi_pass unix:/var/run/php5-fpm.sock; # fastcgi_index index.php; # include fastcgi_params; #} # deny access to .htaccess files, if Apache's document root # concurs with nginx's one # #location ~ /\.ht { # deny all; #} } # another virtual host using mix of IP-, name-, and port-based configuration # #server { # listen 8000; # listen somename:8080; # server_name somename alias another.alias; # root html; # index index.html index.htm; # # location / { # try_files $uri $uri/ =404; # } #} # HTTPS server # #server { # listen 443; # server_name localhost; # # root html; # index index.html index.htm; # # ssl on; # ssl_certificate cert.pem; # ssl_certificate_key cert.key; # # ssl_session_timeout 5m; # # ssl_protocols SSLv3 TLSv1 TLSv1.1 TLSv1.2; # ssl_ciphers "HIGH:!aNULL:!MD5 or HIGH:!aNULL:!MD5:!3DES"; # ssl_prefer_server_ciphers on; # # location / { # try_files $uri $uri/ =404; # } #}
你可以看到有一个注释“你应该有”cgi.fix_pathinfo = 0; 在php.ini中“。在它上面，我们也有这样一行：
fastcgi_split_path_info ^(.+\.php)(/.+)$;
根据Nginx，PHP和fastcgi_split_path_info上发布的安全问题 ，我们可以通过closurescgi.fix_pathinfo或使用fastcgi_split_path_info来缓解path信息漏洞 。
既然它已经使用了fastcgi_split_path_info指令来对付这个漏洞，为什么还是说我们应该关掉cgi.fix_pathinfo ？ 如果我们不这样做，我们的服务器是否容易受到攻击？
PHP-FPMconfiguration上的Nginx wiki 页面build议打开cgi.fix_pathinfo 。 注意使用的正则expression式：
fastcgi_split_path_info ^(.+?\.php)(/.*)$;
该页面还提供了一个testing，您可以访问下面列出的不同URL，并检查REQUEST_URI，SCRIPT_NAME，PATH_INFO和PHP_SELF的正确值。
/test.php /test.php/ /test.php/foo /test.php/foo/bar.php /test.php/foo/bar.php?v=1
test.php只包含<?php var_export($_SERVER)?> 。 这有助于确定您的设置是否安全。 在所有url上，您的SCRIPT_NAME应该是test.php 。 无论如何，你不应该在那里看到bar.php 。