1. AC Question's Avatar
    when i connect usb cable for transfering file leptop to mobile there is a popup about RSA fingerprint so how to solve it?
    02-10-2017 05:05 AM
  2. sarahgad's Avatar
    Hey, i think i got a solution for you.
    This error occurs when you use SSH to connect to an Oracle-provided Oracle Linux instance that has a new RSA key fingerprint.

    The RSA key fingerprint of an Oracle Compute Cloud Service instance changes when, for example, an instance that isn’t set up to boot from a persistent disk is re-created. When you first connected to your Oracle Compute Cloud Service instance, the original RSA key fingerprint was stored on your local host. Subsequently, whenever you use SSH to connect to your instance, the instance sends its current fingerprint. The SSH client compares the received fingerprint with the locally stored fingerprint. If the fingerprints don’t match, then this error occurs, and the ssh command fails.

    Note that this warning message is returned by the OpenSSH client on an Oracle Linux host. If you’re using a different SSH client or a different operating system, then the error message may be different.

    To solve this error, you must remove the old (and now invalid) RSA fingerprint of the instance from the local host.

    In Linux, the RSA key fingerprints are usually stored in the /home/user/.ssh/known_hosts file on the host from which you are trying to ssh to the instance. Each line in this file starts with the IP address or host name of a remote host. Open the file in a text editor, identify the line corresponding to the IP address of the instance that you’re trying to access, and delete that line.

    In Windows, by default, PuTTY stores keys for known hosts in the HKEY_CURRENT_USER\SoftWare\SimonTatham\PuTTY\SshHostKeys registry. Each key has a name in the format, rsa2@22:ip_address. Using the Registry Editor, identify the key corresponding to the IP address of the instance that you’re trying to access, and delete it.
    The next time you use SSH to connect to the Oracle Compute Cloud Service instance, a message is displayed indicating that the authenticity of the host can’t be established. At the prompt to continue connecting, enter yes. The new fingerprint is added to the local host, and the connection goes through.

    02-10-2017 05:10 AM

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