How to connect to server [Intro to Assembly Language][Skills Assessment]

The above server simulates a vulnerable server that we can run our shellcodes on. Optimize ‘flag.s’ for shellcoding and get it under 50 bytes, then send the shellcode to get the flag. (Feel free to find/create a custom shellcode)

I have target IP and port, how should I connect to it and send shellcode? IP doesn’t look to be VPN-like or nomashine, for example, this is ip + port don’t open anywhere in browser/nc