I've been trying for what feels like days to remotely connect to a sockjs-go (https://github.com/igm/sockjs-go) server application I've written. I'm developing locally on Windows, and everything works fine. When I try running on a remote linux server (after building on the linux box, obviously), I am never able to connect to the sockjs server.
I've tried running the example echoserver web example from the sockjs-go repository on the remote machine, and I cannot connect to it either.
I made sure to change the sockjs client IP from my local machine to the remote machine.
I have the right public IP address and can view a static web page served by lighttpd.
I've tried searching on google for anything golang-specific, but have found nothing. Any suggestions would be great.
update
I am using the echo test code verbatim given here: https://github.com/igm/sockjs-go/tree/v2/examples/webecho
As far as I can tell, the linux server isn't filtering. Port 8080 is closed before running webecho, and is open after starting webecho.
I have also tried https://coderwall.com/p/wohavg/creating-a-simple-tcp-server-in-go , which I can connect to locally but not remotely. Any ideas why I cannot connect to go programs remotely, but other programs have no problems connecting?
I was apparently using ports that weren't supported. I ended up running as root (sudo) and binding to port 80, since I knew it was serving http traffic appropriately.