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Re: authentication failures
From: |
Thien-Thi Nguyen |
Subject: |
Re: authentication failures |
Date: |
Sat, 04 Dec 2021 20:04:01 -0500 |
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/27.1 (gnu/linux) |
() Bob Proulx <bob@proulx.com>
() Sat, 4 Dec 2021 10:21:04 -0700
> How can i remedy this situation?
Did you just recently upgrade your system and that included
the latest OpenSSH 8.8? If so then I think you have hit the
SHA1 hash obsolescence problem.
Thanks for the quick reply. I see on my system:
$ ssh -V
OpenSSH_8.4p1 Debian-5, OpenSSL 1.1.1k 25 Mar 2021
so i don't think that's the problem. The error message says
"Too many authentication failures" which sounds to me like there
is a count somewhere (state) that needs to be reset somehow.
Anyway...
https://savannah.gnu.org/maintenance/SshAccess/
I recommend using procedure number 2 listed there as that is
the superior solution. But it requires a little more effort
and so I didn't make it the first option. The first option
is the least effort workaround to the problem.
I will include the relevant part below so this message is
self-contained.
... thanks for the pointer. Just to be future-proof, i have
followed the procedures and created a proper ED25519 (i think),
and registered it w/ savannah. FWIW:
$ ssh-keygen -l -f ~/.ssh/.i/sv
256 SHA256:ES6Obfoua7ywmGX8kH6K3FGWGQB12lQOTxP+ZR6FO9M ttn@abolire (ED25519)
I still see the same error on retry, unfortunately.
And as an update on the new system status I
have been working on it but there is a long list of things
needed to be completely finished before it can be swapped
into place without breaking other parts of the system. It's
a large all-or-nothing problem. I am confident the task will
be completed before the end of this month.
https://savannah.gnu.org/maintenance/SavannahHosts/
Cool. I won't pester you further, then (this month :-D).
Good luck and let me know if you need someone to do some light
testing.
--
Thien-Thi Nguyen
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- authentication failures, Thien-Thi Nguyen, 2021/12/04
- Re: authentication failures, Bob Proulx, 2021/12/04
- Re: authentication failures,
Thien-Thi Nguyen <=
- Re: authentication failures, Bob Proulx, 2021/12/05
- Re: authentication failures, Thien-Thi Nguyen, 2021/12/05
- Re: authentication failures, Bob Proulx, 2021/12/06
- Re: authentication failures, Bob Proulx, 2021/12/06
- Re: authentication failures, Thien-Thi Nguyen, 2021/12/08