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How does Oracle authenticate a user?

I'm learning Oracle and below is my testing of starting up an Oracle instance and make the database available. oracle:[~]$ sqlplus SQL*Plus: Release 19.0.0.0.0 - Production on Mon Aug 5 09:29:30 ...
2
votes
2answers
4k views

Oracle 12c: Password File Questions

For one of my assignments I have been attempting to demonstrate password file functionality. However, I have run into some unexpected behaviors. I have tried searching around for answers but can't ...
3
votes
1answer
320 views

Oracle DB Security Issue: Anyone can login using SQL*PLUS, with any username, and any wrong passphrase

I'm using Oracle DB 11g-R2 on CentOS 6.4, and unfortunately there is a terrible issue freaking me out. Anyone can login using SQL*PLUS, with any username, and any wrong passphrase. Consider somebody ...