How can I use curl in Linux to download files from the command line? or What are the best curl Linux

"Connection refused" usually means the server’s not listening or the port’s closed. Try `telnet <host> <port>` to confirm.

If it’s a local server, maybe it’s not running? `sudo netstat -tulnp` will show active listeners.

And yeah, curl linux won’t magically fix a dead server. Check the service logs!