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Date:      Tue, 9 Feb 2021 23:17:41 -0600
From:      Doug McIntyre <merlyn@geeks.org>
To:        "freebsd-questions@freebsd.org" <freebsd-questions@freebsd.org>
Subject:   Re: Permission denied via ssh over ipv6
Message-ID:  <YCNsdWk019SBpLdg@geeks.org>
In-Reply-To: <CAPDFJPjF19_9kRG0ff5r0cmD=-GpnYjdZNaCTyJEj-Bogw0qEw@mail.gmail.com>
References:  <CAPDFJPjF19_9kRG0ff5r0cmD=-GpnYjdZNaCTyJEj-Bogw0qEw@mail.gmail.com>

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On Wed, Feb 10, 2021 at 11:47:08AM +0800, PstreeM China wrote:
> Very thanks, this problem has searched from google, but not find the
> solution to fix this issue.
> 
> new install FreeBSD in virtual machine.
> Freebsd version is 12.2
> Duel stack support ipv4 and ipv6; enable sshd as default.
> I can ping the ipv4 and ipv6 address.
> 
> The problem is:
> SSH over ipv4 is work well.
> But ssh over ipv6, Can be connected, but after input the password, it is
> failed , give the notify : permission denied.
> can not log into the server.
> I am sure the password is right.


Have you run 'ssh -vvv' to see all the very verbose debug information?

Do you have proper DNS PTRs setup for your IPv6 block? It could be
blocked by mismatch reverse DNS.




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