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How to change the ethernet switch password on Exadata

Let’s look at how to log in and change the ethernet switch (adm) password on an Exadata system.

During the installation of the system, the admin user is created. You must have got the admin user credentials when the Exadata was handed off.

There are two different methods to access the ethernet switch. One is through a serial port and the other is through ssh.

  • Serial port: When using serial port access, there are no user accounts, so the enable password is all that is required.
  • ssh: When the switch is accessed via ssh, you must supply a user account and password before you can change the password.

The steps listed here are for Exadata systems until X8. The newer X8M uses RDMA over Converged Ethernet (RoCE) switch and the steps are simpler for that system. It only requires the change-password command.

Changing ‘enable’ password

> ssh admin@exa1sw-adm01.domain.com
Password:

exa1sw-adm01>enable
Password:

exa1sw-adm01#configure terminal
Enter configuration commands, one per line.  End with CNTL/Z.
exa1sw-adm01(config)#no enable password
exa1sw-adm01(config)#enable secret <new password>
exa1sw-adm01(config)#end
exa1sw-adm01#write memory
Building configuration...
Compressed configuration from 8045 bytes to 3199 bytes[OK]

Changing ‘admin’ password

> ssh admin@exa1sw-adm01.domain.com
Password:

exa1sw-adm01>enable
Password:

exa1sw-adm01#show running-config all | include service password-encryption
no service password-encryption

exa1sw-adm01#configure terminal
Enter configuration commands, one per line.  End with CNTL/Z.
exa1sw-adm01(config)#service password-encryption
exa1sw-adm01(config)#username admin password <new password>
exa1sw-adm01(config)#end
exa1sw-adm01#write memory
Building configuration...
Compressed configuration from 8034 bytes to 3176 bytes[OK]

References

Refer to the section on ‘Changing Component Passwords’ in the Exadata Database Machine Maintenance Guide.

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