I recently installed a firewall called "firewall-applet" and now I can't share my internet through ethernet cord I tried all of these with no success

sudo apt-get --purge  remove firewall-applet
sudo iptables -F
sudo ufw disable

next I did nmap localhost

Not shown: 996 closed ports


23/tcp open telnet

25/tcp open smtp

139/tcp open netbios-ssn

445/tcp open microsoft-ds

I tried reinstalling the program there's no way to disable the firewall

please help ;(

  • what are you trying to do exactly ? – Panther Jun 18 '15 at 2:38

Firewall-applet is a tray applet for firewalld. Check to see if firewalld is running on your host. Firewall-applet and firewalld are both installed separately, so there is a good chance when you remove firewall-applet, firewalld is still installed and running.

ps -ef | grep firewalld

if it is running, you can remove it by typing in:

sudo apt-get remove firewalld

Hope that helps.

  • that does not really open a port nor configure sharing a network connection nor configure NAT. Why are we removing something rather then understanding what the OP wants and advising configuration. – Panther Jun 18 '15 at 2:55
  • @bodhi.zazen because he set up a firewall and wants to remove them. I was only trying to help remove what was the back for the firewall-applet, that is all. – Terrance Jun 18 '15 at 2:57
  • @bodhi.zazen they are two different applications. Firewalld is installed separately then firewall-applet. The manpage shows it as a tray applet for firewalld. manpages.ubuntu.com/manpages/trusty/man1/firewall-applet.1.html – Terrance Jun 18 '15 at 3:01
  • I am familiar with such things. IMO you should be explaining how to configure firewalld, either with the applet or any way you wish. – Panther Jun 18 '15 at 3:36
  • @bodhi.zazen He asked to remove the firewall, that is what he asked. I gave an answer. – Terrance Jun 18 '15 at 3:40

firewalld can be controlled through the firewall-cmd tool. To open port 22 temporarily use:

sudo firewall-cmd --add-port=22/tcp

To add it permanently (so it remains open when you reboot), you will also need to use:

sudo firewall-cmd --permanent --add-port=22/tcp

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