firewall
Secure private network
To secure the private home network, especially create a guest network and a private one, I used raspberry pi. The private network must be protected better, because of devices like computer, NAS, ect… . The raspberry is equipped with an additional lan port (usb to lan) and an additional w-lan card for a better signal. The first lan port is connected with the router of the ISP and the second one with the local private network. After that the routing is made (IP Tables) so that the internet is forwarded to the private network. Then the firewall (ufw - uncomplicated firewall) is configured, per default all connections are denied and the needed ports have to be opened after that. For example 80 and 443 for http and https. After that a proxy is installed, in this case pihole for blocking adds and additional IPS (intrusion prevention system) Fail2Ban is installed and configured, to secure the „Firewall“ even more.
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How to fix Error 138 in Google Chrome
This article solves the following challenge:
1. Click Start button, type in “Windows Firewall” without the quotes (of course!) and Click on “Allow a program through Windows Firewall”Ensure that anti-virus software is up to date.
2. Once you open that, click on “Allow another program” as shown below.
3. Navigate to Google Chrome in the list and click on “Add”.
4. Once you click add, you will return to the previous screen and click OK.
5. A restart may be necessary at this point. So restart your computer and try again.
If you have any third-party antivirus software like McAfee or Norton, they could be the reason why Google Chrome cannot access the network.
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distribute firewall settings
<p>In networks of Windows workstations whether at home or at work you might want to use same settings and exceptions of the windows firewall on different workstations and not enter same settings on each pc over and over again. Some application or services need several ports to be opened to function correct. What are possibilities to distribute these carefully defined settings on several workstations?</p>
