Logging in to the appliance command line

Certain features of BMC Atrium Discovery need command line access to configure. For example, the appliance obtains its IP address using DHCP by default, though you can configure it at the command line to use a static IP address.

Default command line passwords

BMC Atrium Discovery is configured with the following default command line user accounts and passwords.

  • root — tidewayroot
  • tideway — tidewayuser
  • netadmin — no password configured.
  • upload — no password configured. You cannot log in as the upload user, it is only intended for loading scanner files onto the appliance. See the upload user for more information.

The first time you log onto the appliance UI, you are forced to change the UI system user password and the passwords for the tideway and root command line users. To change the command line user passwords subsequently, log in using the VMware Server Console, or ssh in to the appliance using a terminal. You cannot ssh into the appliance as the root user. First you must log in as the tideway user and su to root.

Updated SSH server 

The SSH server installed on the BMC Atrium Discovery 10.2 appliance has been modified. This modification removes some weak ciphers and HMAC algorithms (and non-FIPS approved) from the list of allowed connections. In practice this should not affect most users, however, some older versions of ssh clients will be unable to connect.

The following versions, or later, of the following clients have been tested and are known to work:

  • PuTTY (0.64)
  • WinSCP (5.7.2)
  • mRemoteNG (1.72 using ssh2)
  • MobaXterm (6.5)
  • KiTTY (
  • Bitvise SSH Client (6.22)

Password quality

The default requirement for command line passwords is that they must have at least one lowercase letter, one uppercase letter, one numeric character, and one special character. They must also contain a minimum of six characters, at least 4 characters must have been changed against the last password, and there must be no more than three repeated characters.

To change the root and tideway passwords

  1. As the root user, use the passwd command to change the password.
  2. Enter a new password when prompted. An example session is shown below:
# passwd
Changing password for user root.
New UNIX password: 
Retype new UNIX password:
passwd: all authentication tokens updated successfully.

When you enter the new password it is not echoed to the screen.

  1. Change the tideway user's password. Still logged in as the root user, change the password using the passwd command specifying the tideway user.
  2. Enter a new password when prompted. An example session is shown below:

    # passwd tideway
    Changing password for user tideway.
    New UNIX password: 
    Retype new UNIX password:
    passwd: all authentication tokens updated successfully.

    The passwords are changed.

The root user

The root user has unlimited privileges on the appliance and should only be used for the following tasks:

  • Changing the default Linux passwords
  • Upgrading the BMC Atrium Discovery application software
  • Adding new disks to the appliance

Any other task on the appliance which typically would require a UNIX/Linux root user can be undertaken using sudo to temporarily grant additional privileges to the tideway user.

The tideway user

The tideway user is a powerful administrative account intended for performing virtually all of the tasks that would need to undertake using the command line. Examples of such tasks are:

  • All command line utilities
  • Customizations (taxonomy, reports, and visualizations)
  • Managing log file (though this can be done through the UI)
  • Starting and stopping services (with additional privileges accessed through sudo)

Additional users

The following additional users are configured on the appliance:

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