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Articles in the Open Source Category

Cross-Platform, Linux Administration, Open Source, Philosophy, Virtualization (Virtualisation), Windows Administration »

[13 Aug 2007 | No Comment | ]

I recently stumbled upon this very interesting interview with (ex) Linux kernel developer Con Kolivas. The article is definitely worth a read as Con expresses much of his frustrations with the performance of the Linux kernel for desktop users (much of it relating to scheduling) as well as some of his frustrations with the kernel development process.
I know myself that FROM A USER’S PERSPECTIVE, very high disk i/o can kill a HP DL-585 with 5 x 15K SAS drives, meanwhile the same task running on a lower end HP9000 …

Apache, Linux Administration, Open Source, Windows Administration »

[8 Aug 2007 | 2 Comments | ]

Last time I did this, I found the instructions pretty easily on how to migrate SSL’s from IIS to Apache. This time I found it hard to locate the documentation, so for my own lack of memory and when google fails you, here it is:
First we need to export the certificate from IIS into a pfx file. To do that:Click Start->Run->type: mmc [enter]Click ->’Console’ -> ‘Add/Remove Snap-in’.Click -> ‘Add’ -> ‘certificates’ snap-in and click on ‘Add’.Select -> ‘Computer Account’ -> click ‘Next’.Select ‘Local Computer’ and then click ‘OK’.Click ‘Close’ and …

Bash, Linux Administration, Open Source »

[4 Aug 2007 | One Comment | ]

Ok – some real-life critical experience today.. one of our web servers notifies us (thanks to csf / lfd firewall ) that the server has had a high load for greater than 5 minutes. I get logged in and see the 5,10 & 15 minute load average exceeding 30 and this server normally runs at a load of <1
Here’s the MRTG Graph of the load:

A quick look at top showed me approx 15 httpd (apache) processes maxxing out the CPU. Now, it’s a shared server with hundreds of Virtual …

Cross-Platform, Internet Goodness, Open Source, Python »

[3 Aug 2007 | One Comment | ]

Whether you are trying to study for your RHCE, MCSE, Solaris, Linux+  or some University exams or maybe even trying to learn a new language, having some flashcards can be extremely helpful – for both short-term and long-term learning.
I have a pretty good system setup: cross-platform, remote learning.
I have played with both Jmemorize and now Granule – Granule is written in C++ & GTK and Jmemorize is Java both run on different platforms and are based on the ‘famous’ Leitner system. Jmemorize has some fancy graphs and Granule doesn’t. Both …