Author Archive


July 5, 2013 Leave a comment

Some years ago i discovered podcasts as a great way to listen to and learn something while commuting or excersing. I like the different formats like long interviews and the variety of available topics. Here are some podcasts i came across, and that i listen to from time to time:

Categories: internet Tags:

Ham Radio News Links

July 5, 2013 Leave a comment

Instead of having a list of ham radio news sites in the blogroll list, i decided to post them here. This may get updates occasionally when i find another interesting page:

Categories: ham radio Tags:

Wrapping up my previous job in Linux kernel device driver development

December 26, 2012 Leave a comment

My previous job was maintaining the zfcp device driver in the Linux kernel. Among cleaning up the code, implementing new features and answering support requests, i also gave presentations about using SCSI attachment with the s390 platform. Here are a few links to the publicly available slides and recordings:

The team authoring the Performance Measurement and Tuning Redbook kindly thanked me for contributing. While working in this position, i also co-authored the article IBM zEnterprise storage I/O advancements in the IBM Journal of Research and Development.

Since i am no longer working in that position, please not that this information might be outdated. Please see the official web page for the latest information and contact information.

Categories: Linux Tags: , ,

TCP/IP and the open Internet

October 3, 2012 Leave a comment

Being interested in technology and having played with voice over IP before, i came across the Disruptive Telephony blog. The article “Slides: How The Hidden Secret of TCP/IP Affects Real-time Communications” references the presentation “The hidden secret of TCP/IP and the internet” which raises an important point: TCP/IP and the internet enable communication from anywhere to anywhere. But the reality is that communication is divided in islands, each controlled by a different company. Communication between the islands is almost impossible. Maybe it is time to demand more interoperable solutions. The presentation focuses on telephony, but the same is true for other aspects like social networking.

Categories: internet Tags: ,


August 3, 2011 Leave a comment

script is a useful command for quickly capturing a terminal session, as i just learned here:

$ script test.log
Script started, file is test.log
$ mkdir x
$ ls x/
$ exit
Script done, file is test.log
$ cat test.log 
Script started on Wed 03 Aug 2011 02:33:36 PM MST
$ mkdir x
$ ls x/
$ exit

Script done on Wed 03 Aug 2011 02:33:41 PM MST
Categories: Linux Tags: ,