no matching key exchange method found.

[zdavatz]

I am trying to copy my build Artifacts to my Linux Server using azure-piplines and this task:

- task: CopyFilesOverSSH@0
  inputs:
    sshEndpoint: 'pillbox'
    sourceFolder: '$(build.artifactstagingdirectory)'
    contents: 'AmiKoWindows/bin/Release/Amiko-Installer/Amiko-Installer.msi'
    targetFolder: '/home/ftp/Amiko_Desitin_Win7.msi'

The SSH Copy-Job always fails. My SSH log on the receiving end says:

Jun 12 16:02:15 [sshd] Unable to negotiate with 137.135.130.50 port 1984: no matching key exchange method found. Their offer: ecdh-sha2-nistp256,ecdh-sha2-nistp384,ecdh-sha2-nistp521,diffie-hellman-group-exchange-sha256,diffie-hellman-group14-sha1 [preauth]

I use Ed25519 which is the most recommended public-key algorithm available today.

any thoughts on when Azure-Pipeline-Tasks may support that? The offered key exchange methods seem a bit outdated AFAICT.

You can find the build here: https://dev.azure.com/ywesee/AmiKo_Csharp/_build/results?buildId=33

This may be related: #8818, https://github.com/MicrosoftDocs/vsts-docs/issues/3169

[egor-bryzgalov]

Closed because this issue was mentioned in #11443.

[zdavatz]

Ok, but does it work now? It seems not!

[anatolybolshakov]

@zdavatz Sorry for closing it, I reopened issue and marked as duplicate - you can follow the link below to be up to date with the progress regarding this issue

Duplicate of #11443

[zdavatz]

Ok, thank you! Would be great, if this would work.

[olljanat]

FYI. #12317 contained solution to this one but I closed it now as it didn't got reviewed on ~1,5 years someone else of those who need this can try to create alternative PR.

[zdavatz]

Ok, thank you! I will try to test it.

[anatolybolshakov]

Hi everyone! Current 'ssh2' version for CopyFilesOverSSHV0 task is 1.4.0, which should resolve this issue - please let us know if you still see it.

[alexander-smolyakov]

I'm closing this due to inactivity, feel free to request a reopening if you have further questions.