On 08/05/2016 03:02 AM, Mark Fletcher wrote: > On a stretch box I have, I want to allow access to the Internet between the > hours of 9am and 9pm and block it between 9pm and 9am. Ideally allow local > network access throughout but block Internet access between 9pm and 9am, > but I can accept total network blockage in the off times if necessary. [snip]
iptables has some match extensions that will work with UTC time, specifically the extensions --timestart and --timestop Using those you should be able to make rules that operate all the time but block traffic during the specified hours. The only issues there are the UTC itself and, maybe, problems with standard time versus daylight savings time locally. It can also be modified to vary for certain days of the week using --weekdays See the manual page for iptables-extensions(8) for the details on those. Regards, Lars
