Help Center > > User Guide> FusionInsight Manager Operation Guide (Applicable to 3.x)> Security Management> Account Management> Changing the Password for a System User> Changing the Password for an OS User

Changing the Password for an OS User

Updated at: Sep 02, 2021 GMT+08:00


During FusionInsight Manager installation, the system automatically creates user omm and ommdba on each node in the cluster. Periodically change the login passwords of the OS users omm and ommdba of the cluster node to improve the system O&M security.

The passwords of users omm and ommdba of the nodes can be different.


  • Obtain the IP address of the node where the passwords of users omm and ommdba are to be changed.
  • You need to obtain the password of user root before modifying user ommdba and omm.

Change the password of an OS User

  1. Log in to the node where the password is to be changed as user root.
  2. Run the following command to change the user password:

    passwd ommdba

    RedHat system displays the following information:

    Changing password for user ommdba.
    New password:

  3. Enter a new password. The policy for changing the password of an OS user varies according to the OS that is actually used.

    Retype New Password:
    Password changed.

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