Gufw - Graphic user interface for managing ufw
Gufw is an easy to use Ubuntu / Linux firewall, powered by ufw.
Gufw is an easy, intuitive, way to manage your Ubuntu firewall. It supports
common tasks such as allowing or blocking pre-configured, common p2p, or
individual ports port(s), and many others! Gufw is powered by ufw.
Introduction iptables is already a very powerful tool by itself, but it's
syntax can get awkward at times and hard to figure out, so Ubuntu developers
decided to make ufw ("The reason ufw was developed is that we wanted to
create a server-level firewalling utility that was a little bit more for
`human beings`"), which was to be simpler. Now, on the graphical side of
things, Firestarer already existed. But why not make an even easier to use GUI
for desktop `human beings`, powered by ufw? This is where Gufw comes in.
Gufw has two states: Enabled and disabled. When Gufw is enabled, you can
allow/reject/deny all incoming and outgoing connections.
You can select between more Programs and Services preconfigured. Once
Program/Service can have multiples rules.
1. Select a rule in the list.
2. Click in Remove button. You can delete more rules if you select it.
You will remove all rules and reset the ufw configuration to initial status
You can edit your preferences in /Edit/Preferences menu.
To routing policy and rules, you must setup IP forwarding:
Uncomment the following lines in /etc/ufw/sysctl.conf:
Open Gufw again: You'll see a new "Routed" option (with an arrow
around the shield) and you can forward any rule from the Update window or
Advanced Tab in Add window.
You can use Gufw in a Linux without Graphical Environment (for example an Ubuntu
Server) or from a remote computer. You will need Gufw 13.10.2 or higher. Just
export your X Display. All the operations in Gufw will be apply in the remote
computer. Important: If you enable the firewall under ssh without the ssh
rule, you'll close the ssh connection, then before to enable Gufw under a ssh
connection, append the ssh rule using ufw with this command:
sudo ufw enable ssh Linux, for example:
Remote computer without graphic environment (IP = 192.168.1.102, Gufw installed
and ssh server).
Local Linux. In this local computer, open a Terminal and run this command:
ssh firstname.lastname@example.org -X
sudo /usr/bin/gufw-pkexec -ssh Windows (For example, Windows IP =
192.168.1.101; Linux IP = 192.168.1.100):
Install Putty & Xming.
In Windows: Run XLaunch from the Start Menu and check "No Access
Control" in the last step.
Connect to your Linux with Putty and run:
sudo /usr/bin/gufw-pkexec -ssh
(8) Official Documentation: https://help.ubuntu.com/community/Gufw
Gufw is (C) 2008-2017, Marcos Alvarez Costales
This manual page was originally written by Marcos Alvarez Costales