Re: Limiting internet access by time
On Fri 05 Aug 2016 at 13:48:54 -0400, Dan Ritter wrote:
> On Fri, Aug 05, 2016 at 03:49:28PM +0000, Mark Fletcher wrote:
> > On Fri, Aug 5, 2016 at 11:04 PM Brian <ad44@cityscape.co.uk> wrote:
> >
> > I didn't mention earlier, and I'm not sure if it is relevant, but the
> > computer connects via WiFi to my access point, which is also my network's
> > internet gateway -- with an LFS box between it and the cable modem as a
> > dedicated firewall. I don't trust the non-free firewall in the AP, although
> > I have left it on. The rest of my network is not to be subject to this 9pm
> > curfew. And I would ideally like connectivity between this machine and the
> > rest of my local network to remain even when the internet is denied to this
> > machine, so I can do remote maintenance when he's not using the machine,
> > for example.
>
>
> I have a new suggestion, based on this.
>
> Do all the filtering on your LFS box.
>
> Match your kid's machine by MAC address.
>
> Write two tiny scripts:
>
> #!/bin/sh
> iptables -D FORWARD -m mac --mac-source 58:63:1a:af:71:72 -j DROP
>
>
> #!/bin/sh
> iptables -I FORWARD -m mac --mac-source 58:63:1a:af:71:72 -j DROP
>
> (substituting in the appropriate MAC address for the machine, of
> course)
>
> and run the first one at 9 PM to disable internet access, and
> run the second one at 8 AM or whatever to re-enable it. Cron is
> your friend.
For this particular situation (LFS=Linux From Scratch?) this does appear
to be the easiest (less work) and most obvious solution.
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