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Date:      Wed, 10 Feb 2021 18:49:17 +0800
From:      PstreeM China <pstreem@gmail.com>
To:        Yuri Pankov <yuripv@yuripv.dev>
Cc:        "freebsd-questions@freebsd.org" <freebsd-questions@freebsd.org>
Subject:   Re: Permission denied via ssh over ipv6
Message-ID:  <CAPDFJPhHkPAgsVy55i8EmdzXuV=YfpsHDdbWe+a8tLGyVyvvng@mail.gmail.com>
In-Reply-To: <0fc3cba3-f5f8-c610-0065-296c73227c1f@yuripv.dev>
References:  <CAPDFJPjF19_9kRG0ff5r0cmD=-GpnYjdZNaCTyJEj-Bogw0qEw@mail.gmail.com> <YCNsdWk019SBpLdg@geeks.org> <CAPDFJPjL8EdVfeH43=35cLxRGyE388JYY9qD5JB=gsdwhTh6ag@mail.gmail.com> <65d54e7c-9d2c-ec74-1c1c-b0d87bfed6c1@yuripv.dev> <CAPDFJPj5Hfbnym0Ry5w-d2COw2RaUBift5nem0wkvdAC+4qXnQ@mail.gmail.com> <0fc3cba3-f5f8-c610-0065-296c73227c1f@yuripv.dev>

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My Stupid fault.

Yes, your are right, the server I connected is not the right system.

There is some issue network related. Has ask the ISP troubleshooting this
case.

Thanks all you....

On Wed, Feb 10, 2021 at 17:38 Yuri Pankov <yuripv@yuripv.dev> wrote:

> PstreeM China wrote:
> > my fault.
> > the system i mentioned in the original question "FreeBSD 12.2" is the ssh
> > server.
> > for this case, the system which i used as the client is also FreeBSD
> 12.2.
> >
> > test from other host(from different network ) as the client to ssh to
> the "
> > 2607:f130::6287", it's the same issue.
> > test from the localhost (the host config the ipv6 address as
> 2607:f130::628
> > ), use the command: %ssh  myuser@2607:f130::628,  it's work well.
> >
> > I don't know what is the problem, how to fix.
>
> That would mean, and the log you provided confirms, that you are
> connecting to wrong system, "remote software version OpenSSH_7.4" is NOT
> FreeBSD 12.2 sshd reply.  For further investigation, you could provide
> network configuration, i.e. `ifconfig`, `netstat -rn` output and
> relevant rc.conf entries from both client and server.
>
> > On Wed, Feb 10, 2021 at 4:47 PM Yuri Pankov <yuripv@yuripv.dev> wrote:
> >
> >> PstreeM China wrote:
> >>> hi:
> >>>
> >>> thanks for your quickly reply.
> >>> ssh -vvv log as below, we can see the connection has already
> established,
> >>> but after input the password, it's not work..
> >>> i'am sure the password is right, try modify the passwd has the same
> >> issue.
> >>>
> >>> about the DNS PTRs, how should i do ? the source is my home pc, not
> have
> >>> DNS domain.
> >>>
> >>> --------------------------------
> >>> rpi% ssh myuser@2607:f130::6287 -vvv
> >>> OpenSSH_7.9p1, OpenSSL 1.1.1h-freebsd  22 Sep 2020
> >> [...]
> >>> debug1: Local version string SSH-2.0-OpenSSH_7.9 FreeBSD-20200214
> >>> debug1: Remote protocol version 2.0, remote software version
> OpenSSH_7.4
> >> [...]
> >>> Permission denied, please try again.
> >>> myuser@2607:f130::6287's password:
> >>
> >>  From your original question it's not clear whether FreeBSD 12.2 system
> >> is the client or server, and given the above I'm guessing it's the
> >> former as remote version doesn't say "FreeBSD" and is otherwise
> >> outdated; correct?
> >>
> >> Also, are you able to connect to 2607:f130::6287 from any other host to
> >> make sure it's correct address to use and is accepting v6 connections?
> >>
> >>> On Wed, Feb 10, 2021 at 1:18 PM Doug McIntyre <merlyn@geeks.org>
> wrote:
> >>>
> >>>> 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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