nginx 基于http_x_forwarded_for访问控制白名单

map $http_x_forwarded_for $accessip {     default false;     10.10.10.10 true;  #定义白名单 } server {     listen       80;     server_name 127.0.0.1;     root html;     access_log logs/access.log main;     error_log  logs/error.log;     #expires -1;     location /favicon.ico {             expires 30d;     }     location / {         if ( $accessip = 'false' ) {return 403;} #访问控制         try_files $uri @fallback;     } }