dns cache beyond ttl - viasat / exede

William Herrin bill at herrin.us
Mon Oct 7 21:23:09 UTC 2019


On Mon, Oct 7, 2019 at 11:56 AM Brielle <bruns at 2mbit.com> wrote:
> On 10/7/2019 12:15 PM, William Herrin wrote:
> > This is the action of the TCP accelerator. TCP has a "long fat pipe"
> > problem where high-delay links (like a trip to geostationary orbit and
> > back) demolish throughput. To combat this, satellite protocols translate
> > TCP flows to a non-TCP or modified TCP protocol for transmission through
> > the satellite and then back to TCP in the modem.
>
> Yeah, its just one of those things that really messes with you when you
> are trying to diagnose obscure error messages and application behavior.
>
> Usually I'd be in a place 50+ miles from nearest town with cell service,
> only accessible via jetboat...  stuck on Iridium sat phone at $5/min
> with the Sat company, their utterly useless first level support that
> refuses to actually get a network engineer involved...
>
> I'm a patient, tolerant woman normally with tech support, but the sat
> internet providers push you into a red zone so quickly with their
support...

You don't happen to have some documented examples of this do you? I could
use examples of stuff that broke and was hard to diagnose and fix due to
unexpected proxying behavior for an argument I'm having elsewhere.

Regards,
Bill Herrin


-- 
William Herrin
bill at herrin.us
https://bill.herrin.us/
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