nginx笔记

1、直接返回来访IP

location /ip {

  default_type text/plain;

  return 200 $remote_addr;

}

2、流转发及写日志、开启websocket：

      log_format  stream  '$remote_addr ($remote_user) $time_local' ;

        map $http_upgrade $connection_upgrade {
                default upgrade;
                ''      close;
        }
        map $uri $log_stream_user {
                default 0;
                "~SND" 1;
        }

stream {
    server {
        listen 15678;
        proxy_pass 192.168.1.99:1234;
    }
        server {
                        listen 8073;
                        access_log /var/log/nginx/access_8073.log stream buffer=1k flush=5s if=$log_stream_user;
                        location / {
                                        proxy_pass http://192.168.1.1:8073;
                                        proxy_http_version 1.1;
                                        proxy_set_header Upgrade $http_upgrade;
                                        proxy_set_header Connection "upgrade";
                                        auth_basic "Wellcome to visit ......";
                                        auth_basic_user_file htpasswd;
                        }
                        location ^~ /admin {
                                        deny all;
                        }
        }

}