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(solved) Re: ssh fingerprint mismatch for one single client

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> Yes. Given the data you've provided, I retract my first hunch: it seems
> your student is seeing a different host:
>
>  - either DNS resolves to a different IP address -- then you'd see
>    different IP addresses for your server as viewed from your student's
>    workstation wrt the "rest of the world
>
>  - or routing sends your student to a different host (claiming the
>    same IP address, that stinks ;-)
>
> Traceroute might help in the second case. Besides, you wouldn't see your
> student's access attempts in your server logs -- after all, he's knocking
> at another door.
>
> Cheers
>  - t
>


Dear Linuxers,

I just want to close this issue by thanking everyone who chipped in with
help and attempts to solve the problem

Unfortunately the mistery will go on, because my student solve the problem
by  changing his  ISP server.

He told that the problem was solved immediately, as we predict and tested
(via mobile and the neighbor's internet).

So, I cannot run any more tests, and I'll stay curious about what really
happened.

My bet: the "homebrew ISP" has a DNS problem.

Thanks.

Dr. Bèco





-- 
Dr Beco
A.I. researcher

"I know you think you understand what you thought I said but I'm not sure
you realize that what you heard is not what I meant" -- Alan Greenspan

GPG Key: https://pgp.mit.edu/pks/lookup?op=vindex&search=0x5A107A425102382A
Creation date: pgp.mit.edu ID as of 2014-11-09

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Thread

ssh fingerprint mismatch for one single client Beco <rcb@beco.cc> - 2020-09-19 23:30 +0200
  Re: ssh fingerprint mismatch for one single client Lucas Castro <lucas@gnuabordo.com.br> - 2020-09-19 23:50 +0200
    Re: ssh fingerprint mismatch for one single client Beco <rcb@beco.cc> - 2020-09-20 00:40 +0200
  Re: ssh fingerprint mismatch for one single client mick crane <mick.crane@gmail.com> - 2020-09-20 00:00 +0200
    Re: ssh fingerprint mismatch for one single client Beco <rcb@beco.cc> - 2020-09-20 00:50 +0200
      Re: ssh fingerprint mismatch for one single client mick crane <mick.crane@gmail.com> - 2020-09-20 05:40 +0200
      Re: ssh fingerprint mismatch for one single client David Christensen <dpchrist@holgerdanske.com> - 2020-09-20 08:00 +0200
  Re: ssh fingerprint mismatch for one single client Reco <recoverym4n@enotuniq.net> - 2020-09-20 10:50 +0200
    Re: ssh fingerprint mismatch for one single client Beco <rcb@beco.cc> - 2020-09-20 19:10 +0200
      Re: ssh fingerprint mismatch for one single client Beco <rcb@beco.cc> - 2020-09-20 19:20 +0200
      Re: ssh fingerprint mismatch for one single client Reco <recoverym4n@enotuniq.net> - 2020-09-20 19:30 +0200
      Re: ssh fingerprint mismatch for one single client Fabien Roucaute <fabien.roucaute@free.fr> - 2020-09-20 20:40 +0200
      Re: ssh fingerprint mismatch for one single client tomas@tuxteam.de - 2020-09-21 09:20 +0200
        (solved) Re: ssh fingerprint mismatch for one single client Beco <rcb@beco.cc> - 2020-09-23 02:00 +0200
  Re: ssh fingerprint mismatch for one single client <tomas@tuxteam.de> - 2020-09-20 10:50 +0200

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