使用NTLM的windows身份验证的nginx反向代理

一次项目中使用开源nginx反向代理NTLM的windows身份验证出现反复登陆框，最终分析属于keepalive 在NTLM认证过程中发生变化导致。

据此，将nginx.conf 配置修改如下

worker_processes  auto;
worker_rlimit_nofile 65535;

events {
    worker_connections  65535;
}


http {
    include       mime.types;
    default_type  application/octet-stream;

    log_format  main  '$remote_addr - $remote_user [$time_local] "$request" '
                      '$status $body_bytes_sent "$http_referer" '
                      '"$http_user_agent" "$http_x_forwarded_for"';	

    access_log  logs/access.log  main;

    sendfile           on;
    keepalive_timeout  65;

# upstram 负载定义中需添加keepalive
    upstream adrms_service {
       ip_hash;
       server 192.168.1.1:443;
       server 192.168.1.2:443;
       keepalive 32;
    }

# 强制80端口转443

    server {
                listen 80;
                server_name adrms.example.com;
                rewrite ^(.*) https://$server_name$request_uri? permanent;
    }

    server {
                listen 443 ssl;
                server_name adrms.example.com;
                ssl_certificate　　　cert/adrms.example.com.pem;
                ssl_certificate_key cert/adrms.example.com.key;

                ssl_session_cache shared:SSL:10m;
                ssl_protocols TLSv1 TLSv1.1 TLSv1.2;
                ssl_ciphers ECDHE-RSA-AES256-GCM-SHA384:HIGH:!aNULL:!eNULL:!NULL:!MD5:!RC4:!DHE:!AESGCM:!DH:!EDH;
                ssl_prefer_server_ciphers on;

       		charset UTF-8;

#location 需添加proxy_http_version 1.1 和 proxy_set_header Commection "";
                location / {
              	    proxy_buffer_size 64k;
             	    proxy_buffers 32 32k;
               	    proxy_busy_buffers_size 128k;

                    proxy_set_header   Host				$host;
                    proxy_set_header   X-Real-IP		$remote_addr;
                    proxy_set_header   X-Forwarded-For	$proxy_add_x_forwarded_for;
　　　　　　　　　　　　proxy_http_version 1.1;
　　　　　　　　　　　　proxy_set_header Connection "";

                    if ( $request_uri = "/" ) {
                        rewrite ^ $scheme://$host/_wmcs/licensing/license.asmx break;
                    }

                    proxy_pass https://adrms_service;

                }

    }
}

如采用nginx plus版本，可以直接在在upstream区域添加专用的语句 ntlm;

    upstream adrms_service {
       ip_hash;
       server 192.168.1.1:443;
       server 192.168.1.2:443;
       ntlm;
    }

　　

如上，即可实现nginx代理ntlm验证，无需lua编码或使用商业版nginx plus。