This area on my website contains technical writings and software. All textual content is licensed under Creative Commons License, unless particularly described different:



All software is licensed under GNU GPL, unless particularly described different.

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Contents:

Pam_exec PAM module
NetFilter (iptables): anomalies in network performance
Dynaload utility

For the time being I reserve all rights to my photos to myself.
You are allowed to view them only here.
This will change in the future.

Enter my photos gallery! (Slightly under construction.)

This is my blog. Mainly in polish, but also sometimes in english, in technical matters.

My name is Piotr Hosowicz, I am 30+ years old systems administrator. At present I am having some rest, I try to do things that I haven't had time to do when I was working and I am looking for a new job. Until recently I have been working for PTC (Era and Heyah brands) cellular network company in Poland as a UNIX Administrator. Previously I have been working as a systems and network administrator for eCard S.A., a leading polish eCommerce company, dealing with online payments. I use various operating systems, but my primary OS is currently Debian GNU/Linux. Among Linux distributions I also have experience with Fedora Core Linux / Red Hat Enterprise Linux / CentOS Linux. I also had set up a lot of routers on LEAF (Linux Embedded Appliance Firewall). Working in PTC Era I had a lot to do with Sun Solaris. I am a Red Hat Certified Engineer and also a Linux Professional Institute Certified Administrator (Level 1, Level 2 as time permits, I hope I pass the exams soon). I have also some experience with IBM AIX and HP Tru64 Unix. I used to program quite a lot in Borland/Inprise/CodeGear/Embarcadero Delphi IDE. Since year 1999 I was involved some way or another in organising annual Delphi Programmers Jamboree. (Sorry for the outdated URL, we lost the domain and have no home for the time being.) I will help the Delphi community some way or another. Now I program in bash, PERL, PHP, Python, C mainly for administrative purposes, but also for experimental ones.

My non-IT hobbies are: playing resophonic guitar, listening to music (jazz, blues, hard rock, metal, choir, art-rock, jazz-rock). I also like reading books (mainly historic and SF) and taking photos.

I plan that this website will be devoted to IT/tech writings. I bought the domain about two years ago and managed to create THE website, but when the progress was about 75% I felt tired of it. Then an "under construction" period lasted for two years. Now I plan to create the content by evolution, not a Big Bang sort of thing. So expect this place to grow.

Above is my portrait, taken while contemplating in the server room. The device on my head is The Cozmic Background Radiation Concentrator®. Made of ordinary cable straps — Great Inventions are simple.

If you want to contact me then drop me a note.