[BlueOnyx:23745] Re: Easy Migrate

[Richard Sidlin]

> -----Original Message-----
> From: Blueonyx <blueonyx-bounces at mail.blueonyx.it> On Behalf Of Larry
> Smith
> Sent: 11 March 2020 15:59
> To: BlueOnyx General Mailing List <blueonyx at mail.blueonyx.it>
> Subject: [BlueOnyx:23744] Re: Easy Migrate
> 
> On Wed March 11 2020 10:38, Richard Sidlin wrote:
> > > On Wed March 11 2020 10:01, Richard Sidlin wrote:
> > > > > >> I ran the command and got this output:
> > > > > >>
> > > > > >> [root at mk-linux-03 ~]# ssh-keygen Generating public/private
> > > > > >> rsa key pair.
> > > > > >> Enter file in which to save the key (/root/.ssh/id_rsa):
> > > > > >> Enter passphrase (empty for no passphrase):
> > > > > >> Enter same passphrase again:
> > > > > >> Your identification has been saved in /root/.ssh/id_rsa.
> > > > > >> Your public key has been saved in /root/.ssh/id_rsa.pub.BUR
> > > > > >> Etc
> > > > > >>
> > > > > >> BUT - still getting this. I have rebooted both servers.
> > > > > >>
> > > > > >> [root at web ~]# ssh-copy-id root at 192.168.200.45
> > > > > >> /usr/bin/ssh-copy-id: ERROR: No identities found
> > > > > >>
> > > > > >> Any other thoughts?
> > > > >
> > > > > By the looks of your prompts you are doing the "ssh-keygen" and
> > > > > the
> > > > > "ssh- copy-id" on different servers. You need to do both
> > > > > commands as root on the server that is the target for easy migrate.
> > > > >
> > > > > Kind regards
> > > > > Maurice
> > > >
> > > > OK, so I don't quite understand that. The new (target) server is
> > > > web and the source server is mk-linux-03.
> > > >
> > > > I ran:
> > > >
> > > > ssh-copy-id root at 192.168.200.45 on the target server. Got the no
> > > > identities found error (192.168.200.45 being mk-linux-03)
> > > >
> > > > Ran this on the source server.
> > > >
> > > > [root at mk-linux-03 ~]# ssh-keygen
> > > > Generating public/private rsa key pair.
> > > > Enter file in which to save the key (/root/.ssh/id_rsa): ssh1103
> > > > Enter passphrase (empty for no passphrase):
> > > > Enter same passphrase again:
> > > > Your identification has been saved in ssh1103.
> > > > Your public key has been saved in ssh1103.pub.
> > > >
> > > > But you say that I should have run this on the target server? What
> > > > command should I use in that case?
> > > >
> > > > Sorry about this, not too proficient in this!
> > >
> > > Richard,
> > >
> > >   Believe if you are actually storing the identify file undere a
> > > different name than the default (your example above shows
> > > ssh1103.pub) then you need to specify the name of the identity file
> > > when you run the ssh-copy-id command with the -i
> <identity_file_name>.
> > >
> > > --
> > > Larry Smith
> > > lesmith at ecsis.net
> >
> > OK, so I ran this command and got this response on the target server:
> >
> > [root at web ~]# ssh-copy-id -i /root/ssh1103.pub root at 192.168.200.45
> > /usr/bin/ssh-copy-id: INFO: Source of key(s) to be installed:
> > "/root/ssh1103.pub" /usr/bin/ssh-copy-id: INFO: attempting to log in
> > with the new key(s), to filter out any that are already installed
> > /usr/bin/ssh-copy-id: INFO: 1 key(s) remain to be installed -- if you
> > are prompted now it is to install the new keys root at 192.168.200.45's
> password:
> >
> > Number of key(s) added: 1
> >
> > Now try logging into the machine, with:   "ssh 'root at 192.168.200.45'"
> > and check to make sure that only the key(s) you wanted were added.
> >
> > BUT, when I run this command, I'm still prompted for a password:
> >
> > [root at web ~]# ssh root at 192.168.200.45
> > root at 192.168.200.45's password:
> >
> > Sorry about this guys!
> >
> >
> > _______________________________________________
> > Blueonyx mailing list
> > Blueonyx at mail.blueonyx.it
> > http://mail.blueonyx.it/mailman/listinfo/blueonyx
> 
> Richard,
> 
>   Hmmm, that means the keys you installed (copied) are not the keys that the
> server is actually using for ssh.  You have to use the "real"
> ssh keys that the server is using for this to work.
> 
> --
> Larry Smith
> lesmith at ecsis.net

I only did the -I option when nothing else worked. I really don't know where to go from here. How can I establish where the real SSH keys are? I have never generated any before today so don't know if they are there by default. 

If you have any other suggestions, I will be most grateful!