It's possible to choose what port on network my file will be shared?

coringa2112 · Nov 10, 2017

Hi again, i have a question, it's possible to share a folder on windows 7 to windows 7 on public folder, but in a way i can set what port it will share the folder? it'll be very usefull for a firewall, someone know a way to do this? Thanks

Alabalcho · Nov 10, 2017

Microsoft file sharing service runs on well-known ports, 445 (SMB) and probably 139 (NetBIOS)

coringa2112 · Nov 10, 2017

But it is possible to share a folder and choose which port to use? there is a way to do this? thanks

Alabalcho · Nov 10, 2017

No. What is the purpose of that? You want to share a folder over Internet? SMB is not the way to do that.

coringa2112 · Nov 10, 2017

Alabalcho :

I just want to share between 2 computers, 1 of them is connected to internet, i need to choose the port, because if i share a file between 2 computers, and if i'm able to choose the port, it will be very easy to use a firewall on iptables, and exclude all other ports. So it's possible to choose what port to share a file in windows to windows? thanks

Alabalcho · Nov 10, 2017

I still can't get your setup, and why firewalls / iptable's play a role...
Are these two computers behind same router? File sharing between Windows computers has been easy for last 25 years or so...

And again - if you want to share a file across the 'Net, SMB is not the right way to do it.

coringa2112 · Nov 10, 2017

internet ----- PC1 ------- router (offline with iptables) -------- PC2

So i share files on public folder, between PC1 and PC2, but i see on wireshark it uses specific ports, for SMB.
I just need to share files between PC1 and PC2 using a port that i must be able to set, for example i need to share folders using port 600,
so on wireshark i would see the packets using this port. I need firewalls to secure PC2 from sending unwanted data. It's possible to do that?
and How can i do it? Any help will be much apreciated

USAFRet · Nov 10, 2017

Specific protocols use specific predefined ports.

2 systems connected to the same router....just shared folders. No messing around with other ports needed.
The router does what it is supposed to do. Route packets.

coringa2112 · Nov 10, 2017

So it's possible to share a folder and be able to choose the port? There is a way to do this?

USAFRet · Nov 10, 2017

coringa2112 :

There is no reason to manually choose a specific 'port'.

Share a folder on PC #1. If both are connected to the same router, PC #2 should see that shared folder.

coringa2112 · Nov 10, 2017

ok thanks for helping and your time

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