Nginx反向代理多域名的HTTP和HTTPS服务的实现

  worker_processes auto;    error_log /var/log/nginx/error.log warn;  pid  /var/run/nginx.pid;    events {   worker_connections 1024;  }    http {   include  /usr/local/nginx/conf/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 /var/log/nginx/access.log main;     sendfile  on;   tcp_nopush  on;   tcp_nodelay  on;    upstream dx.exzel.co.nz {     server 127.0.0.1:8080;  }    upstream mybusiness.exzel.co.nz {     server 192.168.1.252:443;  }    server {   listen 80;   server_name dx.exzel.co.nz;   rewrite ^(.*) https://dx.exzel.co.nz permanent;  }  server {   listen 443;   server_name dx.exzel.co.nz;   ssl on;   ssl_certificate /etc/letsencrypt/live/dx.exzel.co.nz/fullchain.pem;   ssl_certificate_key /etc/letsencrypt/live/dx.exzel.co.nz/privkey.pem;   ssl_session_timeout 5m;   ssl_ciphers ECDHE-RSA-AES128-GCM-SHA256:ECDHE:ECDH:AES:HIGH:!NULL:!aNULL:!MD5:!ADH:!RC4;   ssl_protocols TLSv1 TLSv1.1 TLSv1.2;   ssl_prefer_server_ciphers on;   access_log /var/log/nginx/ccieerror.log ;   location / {     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_pass http://dx.exzel.co.nz;     }  }    server {   listen 80;   server_name mybusiness.exzel.co.nz;   rewrite ^(.*) https://mybusiness.exzel.co.nz permanent;  }  server {   listen 443;   server_name mybusiness.exzel.co.nz;   ssl on;   ssl_certificate /etc/letsencrypt/live/mybusiness.exzel.co.nz/fullchain.pem;   ssl_certificate_key /etc/letsencrypt/live/mybusiness.exzel.co.nz/privkey.pem;   ssl_session_timeout 5m;   ssl_ciphers ECDHE-RSA-AES128-GCM-SHA256:ECDHE:ECDH:AES:HIGH:!NULL:!aNULL:!MD5:!ADH:!RC4;   ssl_protocols TLSv1 TLSv1.1 TLSv1.2;   ssl_prefer_server_ciphers on;   access_log /var/log/nginx/mybusiness.log ;   location / {     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_pass https://mybusiness.exzel.co.nz;     }  }    server {   listen 80;   server_name www.empnz.co.nz empnz.co.nz;    location / {      proxy_pass http://192.168.1.15 ;      }   }    }