[knc1]

Originally Posted by kaito

I guess it is the principle of not having the use of my device monitored

I added these firewall rules: https://www.mobileread.com/forums/sho...10&postcount=3

(these ones https://www.mobileread.com/forums/sho...d.php?t=193260 don't work on Kindle3 as it has an older iptables that doesn't have "-m iprange")

Can also use the chattr +i option: https://www.mobileread.com/forums/sho...12#post2402312

Hope this helps someone in the future. It is working so far for me.

Duh...

Why all the "do it the hard way" approach ?

There is a KUAL button to install a firewall that includes a BBB (Block Big Brother) fiilter.
Developed on a K3, enhanced and tested on K4 and K5 (both of them).

The posts that you linked to pre-date KUAL system with its firewall and close back door buttons.