I’m trying to write a server program in C, using another client, I get this error when I try to connect through port 2080 for example.
connection refused
What can be the reasons of this error?
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There could be many reasons, but the most common are:
The port is not open on the destination machine.
The port is open on the destination machine, but its backlog of pending connections is full.
A firewall between the client and server is blocking access (also check local firewalls).
After checking for firewalls and that the port is open, use telnet to connect to the ip/port to test connectivity. This removes any potential issues from your application.