Re: throttle traffic by amount of time or amount of used traffic in GB?

On 2013-04-12 1:34 AM, Sebastian Singer wrote:
>
> Just one thing: Please stick to the technical focus of the question. 
> Educational advice need not be given as I have received enough of it 
> in the past already. And as far as I have seen and heard I am not the 
> only father having to deal with these kind of problems. Thank you.
Sebastian,

On our family Windows box, I use this to limit the time on the computer 
and ensure fair use:
http://www.timesupkidz.com/

It can be set to allow 1/2 hour of use and force a 15 minute break, for 
example. It also has time of day restrictions.  You mention WoW and 
Minecraft, so windows use is a fair assumption here.

To use PF to enforce restrictions, you could have Cron update a PF table 
and add or remove all the ip's (the xbox, tablet, windows box, etc) 
based on the time of day. Once you've got the table in place, you can 
either do blocking rules (no access to WoW server for ips in the table), 
or altq rules (throttle access to a list of IPs from the table).

A shell/perl/whatever script run from cron could also be used to parse & 
tally data used by IP from PF.  Assuming you have a table called 
internal listing all your IPs on your lan, the following command shows 
how much data has been used per ip:

pfctl -v -t internal -Tshow
192.168.1.12
         Cleared:     Fri Apr 12 08:13:16 2013
         In/Block:    [ Packets: 0                  Bytes: 
0                  ]
         In/Pass:     [ Packets: 125                Bytes: 
9395               ]
         Out/Block:   [ Packets: 0                  Bytes: 
0                  ]
         Out/Pass:    [ Packets: 91                 Bytes: 
6460               ]


AuthPF can be used to further alter pf rules, requiring your son to log 
in to the gateway using ssh:
http://www.openbsd.org/faq/pf/authpf.html

PuTTy for windows has an ssh-agent, so it should be possible to quietly 
log him in to the gateway from his windows account by adding it to his 
startup folder. Look at plink and pagent commands
http://the.earth.li/~sgtatham/putty/

Hope that helps.

~~ Kirk