April 2018
Intermediate to advanced
248 pages
5h 31m
English
Content preview from Internet of Things with Raspberry Pi 3
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Setting up a firewall
There are many firewall solutions available for Linux/Unix-based operating systems, such as Raspbian OS in the case of Raspberry Pi. These firewall solutions have IP tables underneath to filter packets coming from different sources and allow only the legitimate ones to enter the system. IP tables are installed in Raspberry Pi by default, but are not set up. It is a bit tedious to set up the default IP table. So, we will use an alternate tool, Uncomplicated Fire Wall (UFW), which is extremely easy to set up and use ufw.
To install ufw, run the following command (refer to Figure 10.17):
sudo apt install ufw
Figure 10.17 ...
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