Best way to check if there is internet?
Cameron Simpson
cs at cskk.id.au
Mon Feb 7 16:28:42 EST 2022
On 08Feb2022 06:51, Chris Angelico <rosuav at gmail.com> wrote:
>Some day, we'll have people on Mars. They won't have TCP connections -
>at least, not unless servers start supporting connection timeouts
>measured in minutes or hours - but it wouldn't surprise me if some
>sort of caching proxy system is deployed.
The TCP ESTABLISHED state has no timeouts at all (though intemediate
stateful things can get bored). The setup/teardown do though :-) But
they can be proxied. Our previous satellite modem proxied TCP locally
and ran a more-suitable-satellite protocol from the modem to the
downstation, where it became TCP again and went on its way.
Cheers,
Cameron Simpson <cs at cskk.id.au>
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