Arch Linux

scippio

Member

Registered: 2007-01-02

Posts: 74

[SOLVED] new ssh client can't connect to old servers

Hi,
I have some old servers and I can't connect after update to: OpenSSH_9.3p1, OpenSSL 3.0.8 7 Feb 2023

I added:

   PubkeyAcceptedAlgorithms +ssh-rsa
   PubkeyAcceptedKeyTypes +ssh-rsa
   HostKeyAlgorithms +ssh-rsa

but it's not help.

I tried connect to another old server where I using "RSA PRIVATE KEY" not "OPENSSH PRIVATE KEY" and I connected ok... I copied my private key to this old server where is OpenSSH_7.9p1, OpenSSL 1.0.2u  20 Dec 2019 and I connect without problems to my old servers from this old server...

Can anyone help, pls?

Last edited by scippio (2023-11-20 19:21:57)

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Sorry for my English...

schard

Forum Moderator

From: Hannover

Registered: 2016-05-06

Posts: 2,129

Website

Re: [SOLVED] new ssh client can't connect to old servers

Probably not what you want to hear, but for the love of God, upgrade those servers or take them offline.

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scippio

Member

Registered: 2007-01-02

Posts: 74

Re: [SOLVED] new ssh client can't connect to old servers

Probably not what you want to hear, but for the love of God, upgrade those servers or take them offline.

I know... I'll do it soon... but ... is there some solution for this? It will be much easier upgrade if I can connect from my Archlinux...

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Sorry for my English...

seth

Member

Registered: 2012-09-03

Posts: 59,897

Re: [SOLVED] new ssh client can't connect to old servers

https://bbs.archlinux.org/viewtopic.php … 5#p2041915

No idea whether that's still supported and in any event it's not a long-term solution!!
In doubt you'll have to roll back (downgrade the entire system!) to a pre-8.8 version of openssh or rather use an older copy of some live-distro.

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scippio

Member

Registered: 2007-01-02

Posts: 74

Re: [SOLVED] new ssh client can't connect to old servers

ok.. that's might be the temporary solution...

I'm going to connect to all my old servers from the old one and update keys...

so anybody can close this "issue".

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Sorry for my English...

seth

Member

Registered: 2012-09-03

Posts: 59,897

Re: [SOLVED] new ssh client can't connect to old servers

Mark resolved threads by editing your initial posts subject - so others will know that there's no task left, but maybe a solution to find.
Thanks.

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How to upload text · How to boot w/o GUI · Disable Windows Fast-Start! · Fix your xinitrc