How to add a Guest Wireless Network with Isolation in OpenWRT on a wireless router

Problem Statement

Several guests come home and ask for Wi-Fi access to connect to the internet to see emails, etc. Most times, we give them our main SSID wireless password everytime to connect. This has several disadvantages, though not limited to those listed below:

The guest now has a permanent record of your Wireless SSID . . . → Read More: How to add a Guest Wireless Network with Isolation in OpenWRT on a wireless router

Install gufw – Graphical firewall configuration utility in Ubuntu Linux

Start up the terminal on your system as in this post http://www.askmeaboutlinux.com/?p=1904

Install gufw – Graphical firewall configuration utility in Ubuntu Linux $ sudo apt-get install gufw <enter>

Now you can use the GUI to configure your firewall in Ubuntu Linux.

Firewall in Ubuntu Linux

To test if your computer firewall is protecting you on the internet, see this post.

Ubuntu installs a firewall when you install it to your computer. However, the firewall is not active. To activate the firewall, open a terminal window on your system as in this post http://www.askmeaboutlinux.com/?p=1904, then enter the commands in italics as . . . → Read More: Firewall in Ubuntu Linux

Firewall Builder iptables compile error – failed to start program

Following error was reported when compiling the Firewall Builder rulesets for iptables. Compiling rule sets for firewall: xx1firewall fwb_ipt -v -f /home/user/xx1firewall.fwb -d /home/user -o /home/user/xx1firewall.fw -i id8922X6568 Error: Failed to start program fwb_ipt Last error: The process failed to start Current state of QProcess: The process is not running.

To resolve this error, install . . . → Read More: Firewall Builder iptables compile error – failed to start program

Remove the pain from firewall rules building – Firewall Builder

If you are new to firewalls and want an easy way to build the rules for your devices, you can use Firewall Builder. It can be installed on Linux, Windows and other platforms. You can download it from http://www.fwbuilder.org.

The key feature is an easy to use GUI-based firewall rules system. Firewall Builder can also . . . → Read More: Remove the pain from firewall rules building – Firewall Builder

Test your firewall

You can test your firewall using Shields Up! at https://www.grc.com/x/ne.dll?bh0bkyd2. It lets you know if you have any ports open that are listening to connections.

December 2017
M T W T F S S
« Aug    
 123
45678910
11121314151617
18192021222324
25262728293031