Le 06/09/2023 à 12:40, dng@??? a écrit :
> On 06-09-2023 12:09, Didier Kryn wrote:
>>
>>     Hello Antonio.
>>
>>     Thanks for your answer, but there is still something I don't
>> understand: the laptops also get their network configuration from the
>> same DHCP server of the ISP box; how is it then that they get an
>> answer from the additional DNS service offered by my desktop?
>>
>>     Actually I thought it was possible to have several DNS and to
>> discover them when needed, beyond the initial configuration by DHCP,
>> and this seems to be confirmed by the behaviour observed on the laptops.
>>
>> --     Didier
>>
> AFAIR becomes a DNS request processed by first reading the hosts file
> then the local dns if present and as last the dns provided by dhcp or
> manual settings.


    There are no particular address definitions in my /etc/hosts files,
beyond what's provided by the system. I like partcularly the fact that
the desktop address is not resolved when the desktop is not running.
However, the desktop and the laptops are all running the DNSSEC service
avahi-daemon and this might explain why the local DNS server is known.
Didn't find anything on the web about dnssec on Android.

--     Didier

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