<div dir="auto">Hello Joe,<div dir="auto"><br></div><div dir="auto">Ok, can you post sanitised vvv(v) output from a login attempt?</div><div dir="auto"><br></div><div dir="auto">Also, do you have console or out of band management access? You may want to check the server logs as well (if you haven't already) and consider increasing verbosity there too.</div><div dir="auto"><br></div><div dir="auto">I'm happy to take a look at sanitised logs (preferably filtered to just SSH) but no guarantees I can pinpoint the problem.</div><div dir="auto">Just hoping to spot wny clues that would hint at what the next step is in troubleshooting.</div><div dir="auto"><br></div><div dir="auto"><br></div><div dir="auto">Kind Regards,</div><div dir="auto"><br></div><div dir="auto"><i>Dean Bergin</i>.</div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Tue, 17 Dec 2019, 18:10 Joe Aquilina, <<a href="mailto:joe@chem.com.au">joe@chem.com.au</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div>
<div>Dean</div>
<div><br>
</div>
<div>Yes, I have tried using the IPQoS
throughput option, with no success.</div>
<div><br>
</div>
<div>I have used -v(vv) when logging in, and
am happy to provide examples when I login, but my knowledge is not
good enough to be able to decipher what the extra verbosity is
telling me.<br>
</div>
<div><br>
</div>
<div>Cheers.</div>
<div><br>
</div>
<div>Joe Aquilina<br>
</div>
<div><br>
</div>
<div>On 17/12/19 4:55 pm, Dean Bergin wrote:<br>
</div>
<blockquote type="cite">
<div dir="auto">Hello Joe,
<div dir="auto"><br>
</div>
<div dir="auto">Have you tried SSH with the IPQoS throughout
option? The following article suggested it (follow link from
the post therein).</div>
<div dir="auto"><br>
</div>
<div dir="auto">Also, try increasing SSH verbosity with more
v's ;-)</div>
<div dir="auto"><br>
</div>
<div dir="auto"><a href="https://bbs.archlinux.org/viewtopic.php?id=239982" target="_blank" rel="noreferrer">https://bbs.archlinux.org/viewtopic.php?id=239982</a><br>
</div>
<div dir="auto"><br>
</div>
<div dir="auto">Hope that helps.</div>
<div dir="auto"><br>
</div>
<div dir="auto"><br>
</div>
<div dir="auto">Kind Regards,</div>
<div dir="auto"><br>
</div>
<div dir="auto"><i>Dean Bergin</i>.</div>
</div>
<br>
<div class="gmail_quote">
<div dir="ltr" class="gmail_attr">On Tue, 17 Dec 2019, 16:18 Joe
Aquilina, <<a href="mailto:joe@chem.com.au" target="_blank" rel="noreferrer">joe@chem.com.au</a>> wrote:<br>
</div>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div>
<div>Ben</div>
<div><br>
</div>
<div>Thanks for that, and here goes:</div>
<div><br>
</div>
<div>We have two Debian systems here, along with a bunch of
Kubuntu and Windows systems. Early last week I upgraded
the second of our Debian systems from stretch to buster. A
few days earlier, I had upgraded the other Debian system,
also from stretch to buster. That first upgrade went fine
and everything is working as expected.</div>
<div><br>
</div>
<div>However the second (of course the more important
system) did not upgrade correctly. It is mostly ok, but I
am unable to ssh in to that machine. When I try to, I get
this:</div>
<div><br>
</div>
<div>packet_write_wait: Connection to 10.0.2.1 port 22:
Broken pipe</div>
<div><br>
</div>
<div>Searching on the net suggested I try adding
ServerAliveInterval and ServerAliveCountMax into the
sshd_config file - no luck there.<br>
</div>
<div><br>
</div>
<div>I have tried removing (and purging) openssh again with
no luck.</div>
<div><br>
</div>
<div>I have also tried disabling ufw in case there problem
was there, no luck.<br>
</div>
<div><br>
</div>
<div>Stopping ssh and sshd services and installing dropbear
allows me to login to the machine, and I can perform
normal file operations. However, this machine collects and
distributes our emails for all users on our LAN and the
other machines can't access the machine. There is another
(off-site) Debian machine that does an important overnight
folder sync which it is currently unable to do as it can't
ssh in.<br>
</div>
<div><br>
</div>
<div>My Linux/Debian knowledge is obviously pretty limited,
and I am not sure what to try next.<br>
</div>
<div><br>
</div>
<div>What else can I provide that might help me solve this?</div>
<div><br>
</div>
<div>Sorry to be a bit longwinded and possibly not precise
enough in my description of the problem. Thanks in advance
for any suggestions, advice or assistance.</div>
<div><br>
</div>
<div>Cheers.</div>
<div><br>
</div>
<div>Joe Aquilina<br>
</div>
<div><br>
</div>
<div>On 17/12/19 3:55 pm, Benjamin wrote:<br>
</div>
<blockquote type="cite">
<div dir="ltr">Hi Joe,
<div><br>
</div>
<div>Yep, sounds good to me...</div>
<div>~ B</div>
<div>(PLUG President)</div>
</div>
<br>
<div class="gmail_quote">
<div dir="ltr" class="gmail_attr">On Tue, Dec 17, 2019
at 2:57 PM Joe Aquilina <<a href="mailto:joe@chem.com.au" rel="noreferrer noreferrer" target="_blank">joe@chem.com.au</a>>
wrote:<br>
</div>
<blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">Hello. I have just
subscribed to this list with this address after being
<br>
a long time lurker using my home email address.<br>
<br>
I am looking for technical assistance after a not
quite successful <br>
recent Debian upgrade (from stretch to buster). Is it
appropriate for me <br>
to do so here? My Linux knowledge is still pretty
limited and I have not <br>
been able to find a solution to the problem through
extensive searches <br>
on the internet.<br>
<br>
If that is a reasonable request, I will detail the
problem, and what I <br>
have tried to do to fix it, in a separate email.<br>
<br>
Thanks in advance.<br>
<br>
Joe Aquilina<br>
<br>
-- <br>
Joe Aquilina<br>
Central Chemical Consulting Pty Ltd<br>
PO Box 2546 Malaga WA 6944 Australia<br>
1/11 Narloo St Malaga 6090 Australia<br>
Tel: +61 8 9248 2739 Fax: +61 8 9248 2749<br>
<a href="mailto:joe@chem.com.au" rel="noreferrer noreferrer" target="_blank">joe@chem.com.au</a>
<a href="http://www.chem.com.au" rel="noreferrer
noreferrer noreferrer" target="_blank">www.chem.com.au</a><br>
<br>
_______________________________________________<br>
PLUG discussion list: <a href="mailto:plug@plug.org.au" rel="noreferrer noreferrer" target="_blank">plug@plug.org.au</a><br>
<a href="http://lists.plug.org.au/mailman/listinfo/plug" rel="noreferrer noreferrer noreferrer" target="_blank">http://lists.plug.org.au/mailman/listinfo/plug</a><br>
Committee e-mail: <a href="mailto:committee@plug.org.au" rel="noreferrer noreferrer" target="_blank">committee@plug.org.au</a><br>
PLUG Membership: <a href="http://www.plug.org.au/membership" rel="noreferrer noreferrer noreferrer" target="_blank">http://www.plug.org.au/membership</a><br>
</blockquote>
</div>
</blockquote>
<p><br>
</p>
<pre cols="72">--
Joe Aquilina
Central Chemical Consulting Pty Ltd
PO Box 2546 Malaga WA 6944 Australia
1/11 Narloo St Malaga 6090 Australia
Tel: +61 8 9248 2739 Fax: +61 8 9248 2749
<a href="mailto:joe@chem.com.au" rel="noreferrer noreferrer" target="_blank">joe@chem.com.au</a> <a href="http://www.chem.com.au" rel="noreferrer noreferrer" target="_blank">www.chem.com.au</a></pre>
</div>
_______________________________________________<br>
PLUG discussion list: <a href="mailto:plug@plug.org.au" rel="noreferrer noreferrer" target="_blank">plug@plug.org.au</a><br>
<a href="http://lists.plug.org.au/mailman/listinfo/plug" rel="noreferrer noreferrer noreferrer" target="_blank">http://lists.plug.org.au/mailman/listinfo/plug</a><br>
Committee e-mail: <a href="mailto:committee@plug.org.au" rel="noreferrer noreferrer" target="_blank">committee@plug.org.au</a><br>
PLUG Membership: <a href="http://www.plug.org.au/membership" rel="noreferrer noreferrer noreferrer" target="_blank">http://www.plug.org.au/membership</a></blockquote>
</div>
</blockquote>
<p><br>
</p>
<pre cols="72">--
Joe Aquilina
Central Chemical Consulting Pty Ltd
PO Box 2546 Malaga WA 6944 Australia
1/11 Narloo St Malaga 6090 Australia
Tel: +61 8 9248 2739 Fax: +61 8 9248 2749
<a href="mailto:joe@chem.com.au" target="_blank" rel="noreferrer">joe@chem.com.au</a> <a href="http://www.chem.com.au" target="_blank" rel="noreferrer">www.chem.com.au</a></pre>
</div>
_______________________________________________<br>
PLUG discussion list: <a href="mailto:plug@plug.org.au" target="_blank" rel="noreferrer">plug@plug.org.au</a><br>
<a href="http://lists.plug.org.au/mailman/listinfo/plug" rel="noreferrer noreferrer" target="_blank">http://lists.plug.org.au/mailman/listinfo/plug</a><br>
Committee e-mail: <a href="mailto:committee@plug.org.au" target="_blank" rel="noreferrer">committee@plug.org.au</a><br>
PLUG Membership: <a href="http://www.plug.org.au/membership" rel="noreferrer noreferrer" target="_blank">http://www.plug.org.au/membership</a></blockquote></div>