Web Pages Not Databases – Part 2: Fail2ban, Apache, IP Addresses, Linux, SELinux

August 23, 2015 (Back to the Previous Article in this Series) I started using Linux in 1999, specifically Red Hat Linux 6.0, and I recall upgrading to Red Hat Linux 6.1 after downloading the files over a 56k modem – the good old days.  I was a little more wise when I upgraded to another […]

Hyper-Extended Oracle Performance Monitor 7.0 Beta

August 16, 2015 Three and a half years ago I offered the Hyper-Extended Oracle Performance 6.0 Beta for download – that Beta version expired a year later.  This program has been somewhat of a pet project for the last 13 years (almost 10 years at the time of the previous Beta offering), so I was […]

On the Topic of Technology… 8 – First 48 hours with Windows 10

August 3, 2015 I have been testing Windows 10 under the Windows Insider Program for several months using an old Dell Precision Core 2 Extreme computer (with NVidia graphics card) that was retired from engineering service a couple of years ago. I had some issues upgrading from one preview version to the next, such as […]

To N or Not to N, is SYS_OP_C2C the Question; Oracle NVARCHAR Slow?

February 8, 2015 I was recently contacted about an odd performance issue with a software product named TDM, where certain SQL statements submitted to an Oracle 9.2.x database required roughly 30 seconds to execute when a nearly instantaneous response was expected.  The person who reported the issue to me provided a sample SQL statement that […]

Install Nagios on a Synology DiskStation DS415+

December 24, 2014 (Back to the Previous Post in the Series) This article describes how to compile and run Nagios 4.0.8 (with 2.0.3 plugins) on a Synology DiskStation DS415+ (64 bit), which utilizes an Intel Atom Avoton processor (cat /proc/cpuinfo indicates that the unit is using a 2.40GHz Atom C2538, and utilizes the DSM 5.1-5021 (the latest version as […]

Review of Synology DS415+, How to Add Memory to the DS415+, Web Pages Not Databases

December 19, 2014 As frequent readers of this blog likely know, I have not posted very many articles recently.  It seems that lately I struggle to find time to post interesting items to the blog, which is mostly focused on Oracle Database notes, so this is a three in one off-topic post.  I have been busy […]

On the Topic of Technology… 7

September 26, 2014 (Back to the Previous Post in the Series) As I was walking from the back of the facility where I work to my office just recently, I started repeatedly saying to myself as I approached the office door, “that huge computer was not here when I started calling my office a second home“.  I […]

Book Review: Troubleshooting Oracle Performance, Second Edition

July 15, 2014 Extensively Researched with Detailed Analysis Covering a Broad Range of Oracle Database Performance Topics, Providing Insight that is Not Available from Other Sources http://www.amazon.com/Troubleshooting-Oracle-Performance-Christian-Antognini/dp/143025758X/ I pre-ordered this book in December 2013, having previously read the first edition of this book twice.  Once the printed copy of the second edition book arrived, I ordered […]

FIRST_ROWS_n Optimizer Mode – What is Wrong with this Statement?

June 8, 2014 It has been nearly two years since I last wrote a review of an Oracle Database related book, although I have recently written reviews of two Microsoft Exchange Server 2013 books and a handful of security cameras in the last two years.  My copy of the second edition of the “Troubleshooting Oracle […]

On the Topic of Technology… 6

March 16, 2014 (Back to the Previous Post in the Series) It has been a while since my last post on this blog – I guess that the simple answer is that I was busy with a lot of non-Oracle Database related items, and was suffering from a bit of a writer’s block (nothing that a […]