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Ubuntu Server Port Opening

Khoomn
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So I'm trying to open a port for a program on my server.

 

I feel like I've tried everything and nothing works.

I'm just using port 58585 for the hell of it.

I did ufw allow 58585, ufw allow 58585/tcp, ufw allow 58585/udp, ive done iptables and all that. I did "nc -l 58585" and that works 100%, only until the port gets checked then it stops

 

What other things could I try or do to open the port?

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Are you trying to do this in a home network? or on a VPS?

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2 minutes ago, Levent said:

Are you trying to do this in a home network? or on a VPS?

VPS, I'm trying to open the port on the VPS and using a vpn, use that port on a windows machine for a program

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Opening a port means there has to be a service or a program that is listening on it. nc (aka netcat) is one of the tools. If it can listen on port 58585 (default is TCP), then your program is not listening on that port. You need to configure the program to listen on the port first.

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1 hour ago, Khoomn said:

So I'm trying to open a port for a program on my server.

 

I feel like I've tried everything and nothing works.

I'm just using port 58585 for the hell of it.

I did ufw allow 58585, ufw allow 58585/tcp, ufw allow 58585/udp, ive done iptables and all that. I did "nc -l 58585" and that works 100%, only until the port gets checked then it stops

 

What other things could I try or do to open the port?

First of all, that is not a port that can be used, that range is used by the operating system for opening connection, you can try any number before 49151

Second, what program are you using that is listening to that port ?

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6 hours ago, Chunchunmaru_ said:

First of all, that is not a port that can be used, that range is used by the operating system for opening connection, you can try any number before 49151

Second, what program are you using that is listening to that port ?

I thought the max amount of ports was 65355?

 

And just to test to make sure 100% the port is open, im using iperf3

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