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Discussion Starter #1
The Firewall on Ubuntu is disabled by default. Should I turn it on?
Will anything will be changed once I turn it on?

It says it blocks incoming connections - does that mean it will block things like incoming skype calls and etc?
 

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Team Manager, Microsoft Support
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sudo ufw enable. Then make any rules you want. It's OK to leave it disabled.
 

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Alternative Computing, Moderator
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Have you got another firewall on your home network?
Most DSL routers have a built in firewall, which are set to block
most common ports.
If you dont already have a firewall then I'd enable it, the best policy is block
all incoming and outgoing connections and only open ports you need.

ufw has a graphical front end called gufw which makes adding firewall rules
easy. Search google or use this link for starting point:

https://www.maketecheasier.com/handle-configure-firewall-in-linux/
 

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Discussion Starter #4 (Edited)
sudo ufw enable. Then make any rules you want. It's OK to leave it disabled.
Have you got another firewall on your home network?
Most DSL routers have a built in firewall, which are set to block
most common ports.
If you dont already have a firewall then I'd enable it, the best policy is block
all incoming and outgoing connections and only open ports you need.

ufw has a graphical front end called gufw which makes adding firewall rules
easy. Search google or use this link for starting point:

https://www.maketecheasier.com/handle-configure-firewall-in-linux/
Alright! I was hoping it doesn't block all incoming notifications and calls.

Anyways, would you take a look at this?
[see screenshot]
I don't have a single windows installation in 10 meter radius of me. How then?
 

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