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OpenSSH server compatibility issues #17197

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nklaassen opened this issue Oct 7, 2022 · 1 comment · Fixed by #19579
Closed

OpenSSH server compatibility issues #17197

nklaassen opened this issue Oct 7, 2022 · 1 comment · Fixed by #19579
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@jakule
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bug test-plan-problem Issues which have been surfaced by running the manual release test plan

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@nklaassen
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Expected behavior:
OpenSSH servers can be accessed via teleport using tsh, the Teleport WebUI, or OpenSSH

Current behavior:

client sshd version working server error
tsh 11.0.0-alpha.2 OpenSSH_7.4p1 ❌ unsupported public key algorithm: [rsa-sha2-256-cert-v01@openssh.com]
tsh 10.0.0 OpenSSH_7.4p1 ❌ unsupported public key algorithm: [rsa-sha2-256-cert-v01@openssh.com]
Web UI 11.0.0-alpha.2 OpenSSH_7.4p1 ❌ unsupported public key algorithm: [rsa-sha2-256-cert-v01@openssh.com]
Web UI 10.0.0 OpenSSH_7.4p1 ❌ unsupported public key algorithm: [rsa-sha2-256-cert-v01@openssh.com]
ssh OpenSSH_8.6p1 OpenSSH_7.4p1 ✅
tsh 11.0.0-alpha.2 OpenSSH_8.9p1 ✅
Web UI 11.0.0-alpha.2 OpenSSH_8.9p1 ✅
ssh OpenSSH_8.6p1 OpenSSH_8.9p1 ❌ no matching host key type found. Their offer: ssh-rsa-cert-v01@openssh.com

Same behaviour on local and leaf cluster.
@nklaassen nklaassen added bug test-plan-problem Issues which have been surfaced by running the manual release test plan labels Oct 7, 2022
@nklaassen nklaassen mentioned this issue Oct 7, 2022
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@jakule jakule self-assigned this Oct 10, 2022
@jakule
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jakule commented Nov 11, 2022

sshd compatibility should be fixed by #18181 We're still working on the client part.

@jakule jakule mentioned this issue Dec 28, 2022
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@jakule jakule

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bug test-plan-problem Issues which have been surfaced by running the manual release test plan
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Switch golang.org/x/crypto to gravitational fork gravitational/teleport
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@jakule @nklaassen