I would like to set up a firewall for my Colibri imx6 module, which is based on my custom Yocto image version 2.8b6. Unfortunately, I have not been able to find any preinstalled firewall options such as UFW. I would greatly appreciate it if you could guide me on how to install or use a preexisting firewall that I may have overlooked.
The LXDE Linux image provided by Toradex includes iptables, which serves as a firewall. If your custom image does not include iptables, you can install them using the command opkg install iptables