[jira] [Work started] (SSHD-750) Accept SSH clients advertising 1.99

["Goldstein Lyor (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/SSHD-750?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Work on SSHD-750 started by Goldstein Lyor.
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> Accept SSH clients advertising 1.99
> -----------------------------------
>
>                 Key: SSHD-750
>                 URL: https://issues.apache.org/jira/browse/SSHD-750
>             Project: MINA SSHD
>          Issue Type: New Feature
>    Affects Versions: 1.4.0, 1.5.0
>            Reporter: Scott Meeuwsen
>            Assignee: Goldstein Lyor
>            Priority: Minor
>
> I debated listing this as a bug, given clients advertising 1.99 are SSH 2.0 clients and are being rejected, I believe, somewhat accidentally. However, on further research I see that the RFC doesn't really cover this situation (only the opposite: a server advertising 1.99 to a 2.0 client). Ultimately, I do think this should be supported given:
> 1) the server/client will still talk 2.0, nobody is suggesting adding a mode whereby they talk 1.x, so there shouldn't be a security issue here
> 2) MINA SSH client already supports it (inverse situation), so this creates alignment within the code between client/server capabilities
> 3) OpenSSH server supports it (not that everybody has to copy OpenSSH behavior, but it is certainly a widely supported implementation to look for advice on how to behave)
> 4) the patch is a one liner, easy to understand, and was easily tested (aka it works)
> Github pull request:
> https://github.com/apache/mina-sshd/pull/31



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