I Just wrote about a useful PL/SQL function that returns an MD5 sum of a string that I found on the DBA-Village mailing list. On the same mailing list i found an interesting pointer to a paper. The page on DBA-Village's site is titled http://www.dba-village.com/village/dvp_links.LinkDetail?LinkIdA=1949 - (broken link) Inner look on Oracle latches. This points at a paper titled http://www.wisdomforce.com/dweb/resources/docs/internals_latches.pdf - (broken link) Inner look on Oracle latches and is written by David Gornshtein and Boris Tamarkin of http://www.wisdomforce.com - (broken link) Wisdom Force technologies Inc.
This is an excellent paper that goes into some great detail on latches. There are some internal looks at X$ tables and also some examples of use of oradebug. The paper covers "what is an Oracle latch", latches and enqueues, Oracle latch internals, how processes sleep/wakeup mechanism is working for the process waiting in latch, latch contention identification and finally problems with latches.
This is a good paper and very detailed. It is not about security but I liked it because of its internals and detailed information.
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Pete Finnigan's Oracle Security Weblog
This is the weblog for Pete Finnigan. Pete works in the area of Oracle security and he specialises in auditing Oracle databases for security issues. This weblog is aimed squarely at those interested in the security of their Oracle databases.
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May 2005
- A free script to find hidden users in your database - 05/01/2005 by 05/01/2005
- Alex has updated his Oracle exploits page to add 5 more exploit codes - 05/02/2005 by 05/02/2005
- alpha copies of two chapters of Tom's new book are available - 05/04/2005 by 05/04/2005
- Another nice flashback paper - 05/05/2005 by 05/05/2005
- Tom writes about anonymous postings - 05/07/2005 by 05/07/2005
- Richard talks about diagnostics support pack and applications collection tool (ACT) - 05/09/2005 by 05/09/2005
- A great example of information leakage! - 05/10/2005 by 05/10/2005
- A nice paper on latch internals - 05/11/2005 by 05/11/2005
- Nice list of Oracle's default ports - 05/12/2005 by 05/12/2005
- A select only user causing locks? - 05/13/2005 by 05/13/2005
- Marcel-Jan has an interesting tool on his site called SQL-Gotcha - 05/15/2005 by 05/15/2005
- nice paper by Doug Burns on Oracle parallel execution tuning - 05/16/2005 by 05/16/2005
- SQLGotcha is on freshmeat - 05/17/2005 by 05/17/2005
- A good paper on Oracle's random number generator - 05/18/2005 by 05/18/2005
- A good description of some of the Oracle default accounts - 05/20/2005 by 05/20/2005
- orablogs is back - 05/21/2005 by 05/21/2005
- A good list of Oracle discussion resources - 05/22/2005 by 05/22/2005
- IDG were scheduled to interview Oracle's CSO - 05/24/2005 by 05/24/2005
- Scarlet Pruitt's interview with Mary Ann Davidson is out - 05/25/2005 by 05/25/2005
- Alex is to talk at ITUnderground Warsaw and DOAG Freiburg - 05/26/2005 by 05/26/2005
- A new short paper on Alex's site - How to change XMLDB Ports - 05/28/2005 by 05/28/2005
- Chris was also talking about Alex's 42 bugs found in Metalink - 05/30/2005 by 05/30/2005
- Alex has released his paper on metalink hacking - 05/31/2005 by 05/31/2005
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