To safeguard against security vulnerability (CVE-2012-1675) as published here, COST (Class of Secure Transport) parameter is used to restrict any remote instance to get registered with the listener running on a database server. This is done by adding a parameter SECURE_REGISTER_<LISTENER_NAME> = (TCP) in the listener.ora file
Oracle Installation guides, Linux Administration tips for DBAs, Performance Tuning tips, Disaster Recovery, RMAN, Dataguard and ORA errors solutions.
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Friday, May 30, 2014
Sunday, May 18, 2014
RMAN Backup Performance
Finishing an RMAN backup on time (fast) is usually what every DBA looks for. Here I would be discussing my experience of RMAN backup scenarios which I tested for speed and performance. Environment details are as follows.
Tuesday, May 13, 2014
Converting a Failed Over Standby Database Back to Standby Database
I have seen some articles on the internet for
reinstating a primary database after a failover (using flashback database
technology – if FLASHBACK RETENTION time has not exceeded), but I was not able
to find a document to revert or reinstate a “failed-over” standby database
(which has now become primary) back to a standby database (using FLASHBACK
technology).