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Don Burleson Blog 







Oracle IP address history Tips

Oracle Database Tips by Donald BurlesonMarch 11, 2015

Question:  I need to track the IP address of Oracle transactions whereby I can see which IP address u[updated specific database rows.  The table are high DML with over 1.,000 updates per second, and I hesitate to use a DML trigger for auditing IP addresses. 

How do I capture the IP address for each user and how do I associates the user's IP address with a DML event?  Is it rational in terms of performance to put some triggers on sensitive tables and use the method you mentioned to audit which client ran DML on them?

Answer:  A DML audit on a highly volatile table would impose a significant system overhead and a possible bottleneck.

If you know the user ID and you want to pair it with the IP address, you could use a login trigger to capture the user ID and the IP address associated with each user:

First, see how to capture the IP address with sys_context. using a login trigger to capture the user ID and IP address

 Next, you could deploy the LogMiner utility to display details about  a specific users associated with a row update, and look-up the users IP address using the time and user ID from LogMiner.


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