Firewall to beat the kids

Author
Discussion

Bowside

Original Poster:

2,063 posts

244 months

Friday 27th December 2024
quotequote all
Hi guys

I’m trying to find a hardware firewall to sit between our Sky router and the street. Primarily because I want to be able to turn the WiFi off at night (whilst allowing some devices through), but stopping my teenagers from using it.

On device management is out because they have circumvented various systems with VPNs etc and the Sky system has removed the parental controls for some mad reason.

I’m therefore thinking that some sort of physical device on the street side of our Sky router is the only answer. Does anyone have any suggestions? I don’t want to turn the whole thing off with a basic timer because various systems at home need it to be available 24/7

Cheers

miniman

27,621 posts

274 months

Friday 27th December 2024
quotequote all
You comfortable with Raspberry Pi build / usage? If so https://keexybox.org/parental-control/

TownIdiot

3,068 posts

11 months

Friday 27th December 2024
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If you are able to put the sky router into modem mode you will be able to connect a router that has the management options you require.


MadCaptainJack

1,085 posts

52 months

Friday 27th December 2024
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I think you'll find a good leather belt works far better for beating kids than a firewall...

Bowside

Original Poster:

2,063 posts

244 months

Friday 27th December 2024
quotequote all
Thanks guys , the Raspberry might work although it’s 30 years since I programmed anything!! Plus it depends how it connects as the kids machines are Ethernet into the router rather than on WiFi.

I should have also have mentioned that I’ve got a Linksys mesh running on the house side too, so I might hardwire their machines into one of the boxes and hide the Sky box in a wall with the WiFi turned off


TownIdiot

3,068 posts

11 months

Friday 27th December 2024
quotequote all
Bowside said:
Thanks guys , the Raspberry might work although it’s 30 years since I programmed anything!! Plus it depends how it connects as the kids machines are Ethernet into the router rather than on WiFi.

I should have also have mentioned that I’ve got a Linksys mesh running on the house side too, so I might hardwire their machines into one of the boxes and hide the Sky box in a wall with the WiFi turned off
The Linksys mesh should have the controls you need.

miniman

27,621 posts

274 months

Friday 27th December 2024
quotequote all
TownIdiot said:
Bowside said:
Thanks guys , the Raspberry might work although it’s 30 years since I programmed anything!! Plus it depends how it connects as the kids machines are Ethernet into the router rather than on WiFi.

I should have also have mentioned that I’ve got a Linksys mesh running on the house side too, so I might hardwire their machines into one of the boxes and hide the Sky box in a wall with the WiFi turned off
The Linksys mesh should have the controls you need.
It does, but not sure if it works with wired devices. I guess it should, a device is a device, but the mesh boxes only have 2 Ethernet ports on them so a switch is also required.

Personally I’d connect everything with wifi, can’t imagine the kids are doing anything that needs more bandwidth than WiFi can provide

Bowside

Original Poster:

2,063 posts

244 months

Friday 27th December 2024
quotequote all
WiFi connections would be ideal, but they are obsessive about the response times they get for Minecraft (don’t ask me why!) and the direct connection makes all the difference apparently.

I do have a basic hub router, so might try that plugged into the mesh and see if it works

TownIdiot

3,068 posts

11 months

Friday 27th December 2024
quotequote all
In that case just unplug them when the times comes.

That will definitely work

bitchstewie

57,288 posts

222 months

Friday 27th December 2024
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Is this lot locked in a cabinet or something so they can't just unplug it?

CraigyMc

17,798 posts

248 months

Friday 27th December 2024
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What stops them just using the neighbour's wifi?

xeny

4,884 posts

90 months

Friday 27th December 2024
quotequote all
Bowside said:
Plus it depends how it connects as the kids machines are Ethernet into the router rather than on WiFi.
Put their PCs into a switch, plug the switch into the router, put the switch on a mains time switch plug. Hire a bouncer to stop them fiddling with this setup each evening.

Defcon5

6,361 posts

203 months

Friday 27th December 2024
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Won’t they just tether off their cellular devices instead?

skyebear

792 posts

18 months

Friday 27th December 2024
quotequote all
miniman said:
You comfortable with Raspberry Pi build / usage? If so https://keexybox.org/parental-control/
The kids will probably know their way round a Pi better than the parents and block them from the network.

TonyRPH

13,235 posts

180 months

Friday 27th December 2024
quotequote all
The only way to block access is to disable the connection completely.

There are numerous ways around firewalls for outbound (client) traffic.

Block by IP address? No problem, just change IP address.

Block by MAC address? No problem, change MAC address.

Block various protocols? No problem, use a VPN (usually an SSL VPN which uses port 443 - and as the majority of websites operate on SSL these days, you need port 443 open for web access).

One good solution is to use a decent managed switch, and only permit specific MAC addresses which will prevent MAC spoofing.

Put that switch on a VLAN which isn't part of the main network, and then (completely) block that VLAN on the firewall during specific hours.

You will obviously need to (physically) secure access to the switch and router to prevent swapping of cables to different ports.

This doesn't prevent circumventing the WiFi of course, but the way to solve that is to schedule the WiFi access as well (this requires a WiFi router with that functionality).

This is all quite elaborate, but necessary if you are seruious about blocking access during certain hours.




CraigyMc

17,798 posts

248 months

Friday 27th December 2024
quotequote all
TonyRPH said:
The only way to block access is to disable the connection completely.

There are numerous ways around firewalls for outbound (client) traffic.

Block by IP address? No problem, just change IP address.

Block by MAC address? No problem, change MAC address.

Block various protocols? No problem, use a VPN (usually an SSL VPN which uses port 443 - and as the majority of websites operate on SSL these days, you need port 443 open for web access).

One good solution is to use a decent managed switch, and only permit specific MAC addresses which will prevent MAC spoofing.

Put that switch on a VLAN which isn't part of the main network, and then (completely) block that VLAN on the firewall during specific hours.

You will obviously need to (physically) secure access to the switch and router to prevent swapping of cables to different ports.

This doesn't prevent circumventing the WiFi of course, but the way to solve that is to schedule the WiFi access as well (this requires a WiFi router with that functionality).

This is all quite elaborate, but necessary if you are seruious about blocking access during certain hours
Kids will literally just snoop on the neighbours wifi or ask them/steal the creds to get on. All they need is one dotty old neighbour or a door left ajar to take a photo of the back of the router for the default password that hasn't been changed.

If you don't want kids using the internet from X to Y time, you more or less need to take the devices from them unless yours is the only wifi available: for most of the country there will be more than just the parental wifi available.

TonyRPH

13,235 posts

180 months

Friday 27th December 2024
quotequote all
CraigyMc said:
Kids will literally just snoop on the neighbours wifi or ask them/steal the creds to get on. All they need is one dotty old neighbour or a door left ajar to take a photo of the back of the router for the default password that hasn't been changed.

If you don't want kids using the internet from X to Y time, you more or less need to take the devices from them unless yours is the only wifi available: for most of the country there will be more than just the parental wifi available.
I think the OP is trying to prevent the kids playing games, and they would likely be reluctant to play games on WiFi due to latency (especially if it's 'borrowed' WiFi from the neigbours who may even have a much slower connection.


anonymous-user

66 months

Friday 27th December 2024
quotequote all
Can't you have their PCs on a network and then as administrator lock the devices down at certain times?

Phones you can put on family accounts with Apple/Google and restrict their access on those.

Ultimately the problem you have is lack of respect from/an issue with your children of they can't abide by your wishes. Tell me about it, my son's ADHD and words of warning often go in one ear and out the other before you've even left the room.

HiAsAKite

2,453 posts

259 months

Friday 27th December 2024
quotequote all
skyebear said:
miniman said:
You comfortable with Raspberry Pi build / usage? If so https://keexybox.org/parental-control/
The kids will probably know their way round a Pi better than the parents and block them from the network.
Reading through the keexybox documentation sounds like they gave taken pihole and added a bunch more functionality? - some of the keexybox UI screenshot look very pihole-esque..

Anyone have actual experience of running Keexy,in comparison to pihole?

White-Noise

5,017 posts

260 months

Friday 27th December 2024
quotequote all
If they are using ethernet I assume these are desktop PC. Maybe just hand in those power cables at the end of the day. Might not be practical, just a thought but it gets the job done. (Hide the kettle)

There are bundles of ways to do what you want, I remember someone posting before that their kid was doing hard resets on the router. Then they could use the default pw. Maybe if you set up what you need then put it in a locked cabinet you're good.

This to me is quite fun. I would be learning and so are they. Hell you could probably install some kind of software on their computers that handles this. I see there is a market for it so wouldn't surprise me if it exists.

I'm in the process of setting up openwrt on my router. Apparently it can block certain physical ports for times of the day so that would certainly work for you. That might not be too hard of a job and you have the bonus of a better router over the sky one.


Edited by White-Noise on Friday 27th December 13:03