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I am looking at changing default passwords on the Cisco 9336 private switches on an X8m. I have been advised not to change the default password. Does any have advice on this?
You can refer below MOS note which helps you with steps how to do it.
How to change OS user password for Cell Node, Database Node , ILOM, KVM , Infiniband Switch , GigaBit Ethernet Switch and PDU on Exadata Database Machine (Doc ID 1291766.1)
But you will need to check with Oracle support if this is advisable>