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Oracle Enterprise Manager Database Express 19c - A Dialog from XDB ask for Credential

How to Remove EM Express XDB Credential Dialog

by Ed Chen
November 11, 2020November 12, 2020

You may surprisingly see a credential dialog from XDB like the feature image when you tried to login Oracle Enterprise Manager Database Express (EM Express).… Read More »

Oracle Enterprise Manager Database Express 19c - This Page Can't be Displayed

How to Resolve Enterprise Manager Express Secure Connection Fail

by Ed Chen
November 7, 2020November 12, 2020

Saw an error in Internet Explorer 11 when I tried to connect to Oracle Enterprise Manager Database Express (EM Express) of a RAC server. This… Read More »

How to Resolve FreeNAS New Volume was Not Showing

by Ed Chen
September 20, 2018September 20, 2018

New Volume was Not Showing I found there's no volume shown in web GUI of FreeNAS in Chrome like below. The sidebar shows that the… Read More »

How to Resolve Unable to Switchover in Cloud Control 12c Due to a Bug

by Ed Chen
April 5, 2013January 21, 2021

When you make a switchover in Cloud Control 12c, it might show an error message to prevent you to proceed, especially when you are using… Read More »