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Date:      Sat, 14 Sep 2019 16:21:51 +0100
From:      Matthew Seaman <matthew@FreeBSD.org>
To:        freebsd-questions@freebsd.org
Subject:   Re: OT: My ssh authorized_keys doesn't work with nfs/nis
Message-ID:  <d29f8f92-3301-62b6-cb7c-f053c92e79d7@FreeBSD.org>
In-Reply-To: <CAGBxaXn5u196cK_iSjMXLjvEBZe-bDjsJmYMjDspc-dOBJc=AQ@mail.gmail.com>
References:  <CAGBxaXkVQNE6deyWs9JXh9vqmKz8tLc9HfqC8ZmBLrK2jv7p3A@mail.gmail.com> <5bd0de7e-cf45-36bc-f428-2db37e76b5b9@optusnet.com.au> <CAGBxaXn5u196cK_iSjMXLjvEBZe-bDjsJmYMjDspc-dOBJc=AQ@mail.gmail.com>

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From: Matthew Seaman <matthew@FreeBSD.org>
To: freebsd-questions@freebsd.org
Message-ID: <d29f8f92-3301-62b6-cb7c-f053c92e79d7@FreeBSD.org>
Subject: Re: OT: My ssh authorized_keys doesn't work with nfs/nis
References: <CAGBxaXkVQNE6deyWs9JXh9vqmKz8tLc9HfqC8ZmBLrK2jv7p3A@mail.gmail.com>
 <5bd0de7e-cf45-36bc-f428-2db37e76b5b9@optusnet.com.au>
 <CAGBxaXn5u196cK_iSjMXLjvEBZe-bDjsJmYMjDspc-dOBJc=AQ@mail.gmail.com>
In-Reply-To: <CAGBxaXn5u196cK_iSjMXLjvEBZe-bDjsJmYMjDspc-dOBJc=AQ@mail.gmail.com>

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On 14/09/2019 13:36, Aryeh Friedman wrote:
> On Sat, Sep 14, 2019 at 8:21 AM MJ <mjose00@optusnet.com.au> wrote:
>=20
>>
>> On 14/09/2019 5:39 pm, Aryeh Friedman wrote:
>>> My ~/.ssh/authorized_keys files works fine on a machine that is not i=
n my
>>> NIS domain but when I copy my id_rsa.pub (which is what I did to crea=
te
>> the
>>> non-NIS authorized_keys) to my NIS account and give it the same
>> permissions
>>> as the working machine it insists on asking for a password.
>>>
>>> ssh faraway (non-NIS machine)
>>> does not ask for a password
>>> but
>>> ssh nearby (NIS machine) does
>>
>> Try ssh -vvv. See if that informs you more.
>>
> One the first things I tried (I spent hours on the before posting):

It is frequently more enlightening to turn on debugging on the server
side.  You can often spin up sshd on a high-numbered port for testing:

  /usr/bin/sshd -d -d -d -p 2222

This will not daemonize and will only handle one connection attempt.
Run that in one window, and then attempt to ssh into the host from anothe=
r:

  ssh -p hostname

	Cheers,

	Matthew


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