Welcome to my site

My name is Stefan Oehrli. I’m a Swiss electrical engineer working since several years as an Oracle DBA. My main interests are backup & recovery, database internals, database security, infrastructure management and other stuff coming across my daily work as a DBA. On this website I share my experience and some of my thoughts in these areas with you. Among other things, you find my blog, a few scripts, links to some papers and presentations I have written or co-authored, list of public appearances as well links to other interesting web resources.  


Recent Posts

A list of the 5 most recent posts. To see a full list go to the Blogs.

  • 18 April 2018 : Oracle CPU / PSU April 2018
    Oracle recently released the spring Critical Patch Advisory. It is the first critical patch update, which also includes fixes for Oracle 18c. Over all it includes 254 new security fixes across the product families. Overall a rather large update, although only a security vulnerability is patched for the Oracle databases. This vulnerability is not remotely exploitable without authentication and is [Read more...]

  • 28 March 2018 : Smaller Oracle Docker images
    One of the important challenges with Docker is to get used to the image layers and the layered file system. It quickly happens that you unintentionally have too much data in an intermediate layer. Either log files, installation software or login credentials. Whereby the first two "only" blow up the Docker image unnecessarily, while the last point can be a [Read more...]

  • 13 December 2017 : Oracle Unified Directory on Docker
    A bit a while ago I've started to use Docker for miscellaneous purposes. Not really an early adopter, but I still hope I caught the train just in time. 🙂 In one of my customer project, I did have to set up a couple of OUD instance to develop and test the transition from Oracle Directory Server Enterprise Edition (ODSEE) [Read more...]

  • 24 November 2017 : DOAG 2017 Oracle 12c Release 2 Datenbank-Sicherheit in a Nutshell
    Below you will find a list of the different demo scripts used during the DOAG training day 2017 Oracle 12c Release 2 Datenbank-Sicherheit in a Nutshell. In general the script do need a SCOTT or a HR demo schema. Some of the scripts may have more requirements eg. Kerberos configuration, Oracle Enterprise User Security etc. The scripts are available free [Read more...]

  • 23 November 2017 : Install Oracle Unified Directory 12c the smart way
    Installing Oracle Unified Directory has always been easy. The installation guide for OUD 11c as well OUD 12 is simple and straight forward. Additionally Oracle does provide a couple of MOS notes for different deployment scenarios. Nevertheless there is always room for improvement 🙂 During my work on OUD to go on Raspberry Pi Zero or on Docker images for [Read more...]

Want to see more blog posts? Just go to blogs or browse the archives.