如何在多个端口上运行Nginx

我正在尝试在两个端口上configuration相同的实例，例如在端口80和端口81上的nginx，但目前还没有运气。 这是我正在尝试做的一个例子：

worker_processes 1; events { worker_connections 1024; } http { include mime.types; default_type application/octet-stream; sendfile on; keepalive_timeout 65; server { listen 80; server_name chat.local.com; location / { proxy_pass http://127.0.0.1:8080; proxy_http_version 1.1; proxy_set_header Upgrade $http_upgrade; proxy_set_header Connection "Upgrade"; proxy_set_header Host $host; proxy_buffering off; } error_page 500 502 503 504 /50x.html; location = /50x.html { root html; } } server { listen 81; server_name console.local.com; location / { proxy_pass http://127.0.0.1:8888; proxy_http_version 1.1; proxy_set_header Upgrade $http_upgrade; proxy_set_header Connection "Upgrade"; proxy_set_header Host $host; proxy_buffering off; } } } 

当我尝试运行console.local.com时，它显示来自chat.local.com的内容。 有没有办法使nginx在两个端口上运行？ 提前致谢！