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%2Ba8tLGyVyvvng@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%2B4qXnQ@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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