Thank you Eric and der.hans for your feedback.

Thanks to you I am now able to get my laptop and desktop log onto each
other using sftp.

After getting the correct IP address, I determined that openssh and the
sshd were not only not running, they were not even installed on the
desktop. I fixed that, generated new keys on the desktop and after
renaming the local_hosts to local_hostsOLD, I used touch to create a new
local_hosts on both computers. 

When I created the new local_hosts file it had the same permissions as
the old one. kewl

Next step; get rsync to back up from laptop to the desktop using ssh
from a script. I think/hope I am on it.

Harold


On Fri, 2008-05-16 at 18:36 -0700, der.hans wrote:
> Am 14. Mai, 2008 schwätzte koder so:
> 
> > After upgrading my OpenSSH and ancillary files using the Ubuntu update I
> > can no longer use sftp to logon between my desktop and laptop both
> > located inside of my DSL router.
> >
> >
> > It worked yesterday, in fact I just learned to use it yesterday before
> > updating. Now I get:
> >
> > koder@delta-dawn:~$ sftp koder@198.162.1.101
> > Connecting to 198.162.1.101...
> > ssh: connect to host 198.162.1.101 port 22: Connection refused
> > Couldn't read packet: Connection reset by peer
> > koder@delta-dawn:~$ ssh 198.162.1.101
> > ssh: connect to host 198.162.1.101 port 22: Connection refused
> 
> Looks like the ssh service didn't restart.
> 
> > The Ubuntu notice said that the update would automatically update the
> > keys in installation after asking my permission. It did not ask.
> 
> ls -l /etc/ssh/ssh_host*
> 
> Are those dates from when you ran the update?
> 
> Are they older than Sep 2006?
> 
> If they're older than Sep 2006 there was nothing to update.
> 
> > I ran the ssh-vulnkey tool as sudo. It did not return anything except a
> > new prompt.
> 
> Did you run with -a?
> 
> > The notices says to check my keys by looking in various listed files.
> > What am I looking for?
> 
> http://www.ubuntu.com/usn/usn-612-2
> 
> Also check all of your known_hosts files. If host keys have changed, you
> need to change their entries in all the known_hosts files for clients that
> connect.
> 
> > Can I just delete the contents of the files, or the files themselves to
> > start clean?
> >
> > I looked in the /etc/ssh folder and found the 'moduli' file but am not
> > sure what to do with it.
> >
> > Is that any documentation on this?
> 
> The bug reports have documentation, but I haven't found anything that will
> answer all questions or adequately explain why some things need to be
> done.
> 
> ciao,
> 
> der.hans
> -- 
> #  https://www.LuftHans.com/        https://LOPSA.org/
> #  Strangers are friends just waiting to happen!
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