socket.io服务websockets需要物理上在端口80上吗？

Question

using node.js and socket.io to serve websockets

does socket.io need to be listening on port 80 - the real port for websockets , or can it be proxied to a different port, eg, port 8011, on the server?

the browser, using websockets , talks through 80/http. on the server haproxy redirects websockets to node.js .

right haproxy directs to 127.0.4.11:80 . this works fine, but this requires sudo to run node.js .

would rather redirect to localhost:8011 , but do not know if socket.io needs to actually be on port 80 to support websockets correctly.

Answer 1

WebSockets (and Socket.IO) can run on any port; most developers will develop their servers on a high-numbered port specifically to avoid running as root in development. Furthermore, the Socket.IO wiki has a page on ports and which ones work for various firewall software .