Lock Wifi for children

Question

I would like to give an ubuntu pc to my children. And since they are quite young (5 and 7) I would like to shut down the Wifi completely for them. However, to update the pc and download applications, I have to activate it from time to time. And then, it remembers the password and connects automatically. Is there a way to either disable the remembering of the wifi-password (I dont want to disable the password-manager completely) or to attach an extra "lock" to it, eg by unmounting/mounting the wifi-adapter with a password? Thanks for your help.

Possible duplicate of How to lock down connecting to a specific WiFi — graham, Oct 19 '19 at 14:55
Would it be possible to connect PC by wire once a week or every two weeks for updates? — crip659, Oct 19 '19 at 15:31
You could setup a user ID for your children (no WiFi) and a user ID for yourself (all privileges including WiFi). This could help them from damaging system too if they were non-sudo user. — WinEunuuchs2Unix, Oct 19 '19 at 15:46
Just something to think about, I was fixing(simple fix) my parents hi-fi turntable at that age. — crip659, Oct 19 '19 at 16:23
Thnaks for all the comments! We solved it now as WinEunuchs2Unix suggested and set a second ID for them. In fact, the argument that we can easily repair any damage convinced us most. — Verstehnix, Oct 21 '19 at 18:28

score 0 · Answer 1 · answered Oct 19 '19 at 15:55

You can use iptables with the owner module , just for their user. The wifi will work for the rest of the system and for all other users. The syntax is:

iptables -A OUTPUT -o wlan0 -m owner --uid-owner USERNAME -j DROP

That would drop all output packages to wlan0 for user USERNAME, effectivly killing internet for them.

Lock Wifi for children

1 Answers1