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  • 1.  copy files from one esxi to another

    Posted Jan 11, 2023 05:11 PM

    When I try to copy files from one esxi host to another it gives error:

    [root@esxi01:~]scp /var/log/init.log root@esxi02.mydomain.com:/tmp

    hostfile_replace_entries: link /.ssh/known_hosts to /.ssh/known_hosts.old: Function not implemented
    update_known_hosts: hostfile_replace_entries failed for /.ssh/known_hosts: Function not implemented

     

    Even when I ssh from esxi01 to esxi02 I get the same error but the ssh connection is successfull:

    [root@esxi01:/tmp] ssh root@esxi02.mydomain.com

    (root@esxi02.mydomain.com) Password:
    hostfile_replace_entries: link /.ssh/known_hosts to /.ssh/known_hosts.old: Function not implemented
    update_known_hosts: hostfile_replace_entries failed for /.ssh/known_hosts: Function not implemented

    [root@esxi02:~]

    I have disabled the firewall on the hosts while testing, but are still unable to scp between the hosts.



  • 2.  RE: copy files from one esxi to another

    Posted Jan 12, 2023 12:32 PM

    Try to add the parameters

    -o StrictHostKeyChecking=no -o UserKnownHostsFile=/dev/null

    to the scp command (as suggest e.g here: https://serverfault.com/questions/330503/scp-without-known-hosts-check

     



  • 3.  RE: copy files from one esxi to another

    Posted Feb 09, 2023 11:34 AM

    Hi

    the issue is, that there is no '.ssh' directory in / on ESXi
    the directory in esxi is placed to /etc/ssh/keys_<username>

    same for 'authorized_keys' file, which is usually to find in this directory, in case you want to implement rsa key authentication.

    it worked for me by creating a softlink (ln -s /etc/ssh/keys-root /.ssh)
    the very first connection to anther host still produces the above message, but just simply because there was no known_hosts file at all at the time

    after first connect you will see the known_hosts file then
    and when connecting to the next host, you will not get the message anymore, as well you can verify the changed filesize and content of the known_hosts file.

    for the point 'but are still unable to scp between the hosts'
    pls check that again, scp should be very well possible, since you are obviously able to login to the other server.
    usually there is (as u had mentioned) the firewall blocking outgoing requests from ssh-client
    but if ssh-client outgoing is allowed, it doesn't matter anymore if ssh or scp is getting used..


    Cheers