Gufw locks out the home network

Asked by Jeffery Lybbert on 2017-11-13

I built my first Linux PC with Mint 18.2. I added Gufw for security. When I turned it on, I was no longer able to connect to my Windows PC until I turned it off. I looked down the list but could not see the relevant firewall rule.

I appreciate your time in this. I love what I see in Linux thus far and plan to learn it and convert over. I refuse to windows 8 or 10.

Jeff

Question information

Language:
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Status:
Expired
For:
Gufw Edit question
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Last query:
2017-11-14
Last reply:
2017-11-30
costales (costales) said : #1

Hi Jeffery,

The firewall by default will enable all out traffic, then you should
connect from Linux to Windows.
The opposite side (Windows > Linux) will not work, because you're blocking
all in traffic. In this case, you should open the port, but you have to
investigate which port ;)

A hug.

Jeffery Lybbert (jclybbert) said : #2

Thank you, costales.

I looked up the ports and found the following ports are associated with file sharing and server message block (SMB) communications:

Microsoft file sharing SMB: User Datagram Protocol (UDP) ports from 135 through 139 and Transmission Control Protocol (TCP) ports from 135 through 139.

Direct-hosted SMB traffic without a network basic input/output system (NetBIOS): port 445 (TCP and UPD).

I opened them but still nothing. I also modified the host file with the Microsoft pc's ip and nothing.

Launchpad Janitor (janitor) said : #3

This question was expired because it remained in the 'Open' state without activity for the last 15 days.