On Sun, 7 Nov 2021 18:44:28 -0500
"Nick Popoff" wrote:
> In other words, the 3.3.1 ssh.exe does not accept legacy kex algorithms at
> all, no matter what. I no longer can log in to Solaris. For example, it
> DOES NOT accept the following:
>
> C:/cygwin64/home/Nick> ssh.exe -o KexAlgorithms=+diffie-hellman-group14-sha1
> n...@host.com
>
> Unable to negotiate with 50.248.140.9 port 22: no matching host key type
> found. Their offer: ssh-rsa,ssh-dss
>
> Version 3.2 had no problem with legacy algorithms. Can somebody explain as
> to what is going on here. Is it a bug? Or a deliberate break of
> compatibility?
I think this is not due to upgrading cygwin, but due to upgrading
OpenSSH to 8.8p1.
As release note of OpenSSH 8.8p1 says, adding following lines to
~/.ssh/config will solve the issue.
Host *
HostkeyAlgorithms +ssh-rsa
PubkeyAcceptedAlgorithms +ssh-rsa
--
Takashi Yano <takashi.y...@nifty.ne.jp>
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