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Re: Low-Cost Tablet PC suitable for Debian




Celejar <celejar@xxxxxxxxx> writes:

> On Wed, 12 Dec 2018 11:21:21 -0500
> Stefan Monnier <monnier@xxxxxxxxxxxxxxxx> wrote:
>
>> > it's android without the "I'd like to call home' parts, if you choose the
>> > bare install.
>> 
>> AFAIK the bare install will still call home: every time you connect to
>> a wifi network it performs an HTTP request to a Google server in order to
>> detect whether the local connection gives you access to the internet or
>> not (and if not, it presumes it's a captive portal and offers you to
>> launch a browser to sign in).
>
> I've always wondered how Android (and Windows) "know" whether you're
> connected to the internet or not. I guess what you say make sense. Is
> this documented somewhere? Is there a way to change the HTTP request to
> some other host of your choosing?
>
> For Windows (Vista), we find some documentation here:
>
> https://docs.microsoft.com/en-us/previous-versions/windows/it-pro/windows-vista/cc766017(v=ws.
> 10)
>
> https://superuser.com/questions/277923/how-does-windows-know-whether-it-has-internet-access-or-if-a-wi-fi-connection-re
>
> Is there anything like this pre-made for Debian? I suppose it would be
> easy enough to script.
>

See https://blog.vorlons.info/archives/2017/03/07/370/ if you're using
NetworkManager.

-- 
regards,
kushal