13. Frequently Asked Questions

  • I get this error when accessing via SSH my virtual machine:

    @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
    @    WARNING: REMOTE HOST IDENTIFICATION HAS CHANGED!     @
    @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
    IT IS POSSIBLE THAT SOMEONE IS DOING SOMETHING NASTY!
    Someone could be eavesdropping on you right now (man-in-the-middle attack)!
    It is also possible that the RSA host key has just been changed.
    The fingerprint for the RSA key sent by the remote host is
    c8:1b:1d:37:61:ee:9f:e4:db:5b:31:91:35:7b:d2:59.
    Please contact your system administrator.
    Add correct host key in /home/user/.ssh/known_hosts to get rid of this message.
    Offending key in /home/user/.ssh/known_hosts:3
    RSA host key for 10.64.51.7 has changed and you have requested strict checking.
    Host key verification failed.
    

    SOLUTION: the IP of your VM has probably been reused. You need to update the relevant entry on your /home/user/.ssh/known_hosts file. Please run:

    ssh-keygen -R 10.64.51.7
    

    and try again.


  • I am using an image which has a supplementary ephemeral disk, but I not able to change ownership / mode of a directory

    SOLUTION: A ‘fat’ file system is used for the supplementary ephemeral disk. We suggest to reformat this file system as described in Flavors with supplementary ephemeral disk.