Linux firewall?

DarkEnergy · October 31, 2014

I completely forgot how to set it up. I'm trying to run a minecraft server on my shittop. Everything is setup and it's running but I can't connect to it on the local network. I remember that I have to allow the port through a firewall but I don't remember if Linux Mint comes with a firewall and what it's called or if I can have to get one. Any suggestions?

xox · October 31, 2014

Clicked expecting "Linus Farewell"..

Needless to say, I was disappointed.

_{on topic: you can get a piece of hardware which acts as a firewall instead}, _{which could be more effective.}

Altecice · October 31, 2014

It could come with UFW (Uncomplicated Firewall):

Do a sudo ufw status to see if its running in your system.

here is the UFW wiki:

https://help.ubuntu.com/community/UFW

DarkEnergy · October 31, 2014

I kind of fixed it. Apparently iptables came installed so I added an exception. I still can't connect using Localhost but I can using the external ip....I don't get it.

Altecice · October 31, 2014

I kind of fixed it. Apparently iptables came installed so I added an exception. I still can't connect using Localhost but I can using the external ip....I don't get it.

Install UFW its a frontend for Iptables and you can even install a GUI onto it but its not complicated at all via terminal.

just make sure to set up the default rules first:

sudo apt-get install ufwsudo ufw statussudo ufw default deny incomingsudo ufw default allow outgoing sudo ufw allow from 192.168.0.0/24 (assuming this is your internal IP it will allow any traffic to and from this subnet meaning it wont stop any windows services such as SMB etc)(if you need to allow a port):sudo ufw allow 'port'sudo ufw enable