I first started out with Linux way back in 1997 with Slackware Linux. Since then I've gone through many distribution, such as Red Hat, Debian, Ubuntu, SuSE and many more. In 2013 to 2015 I studied for two years to "Linux System Specialist". In 2019 I started writing my book about Linux system administration. It got published at the start of 2020. The book is in Swedish with the title "Linux systemadministration från grunden", with the ISBN 9789198330038

I've written a book in swedish about C programming in UNIX-like environments ("C-programmering i Linux, macOS, BSD och Solaris", ISBN 9789198330021). Before that I programmed an alarm system in  C. I'm completely self-tought when it comes to C.

I've worked with writing "agents" for a price comparison site. Later I've made my own interest rate comparison site for swedish banks. I've also made several websites with PHP, both for myself, companies and for different communities.

I've been writing shell scripts in Bash for about 15 years. I've also studied Bash scripting as part of my "Linux System Specialist" education between 2013 and 2015.

I've written a swedish book about Python (Grunderna i programmering, ISBN 9789198330007). I've also held courses in Python a couple of years ago. I first learned Python as a part of a two year course about Linux.

I've been into FreeBSD on and off for almost 20 years. I've also studied FreeBSD and run my own servers based on it.

I'm running my own small company in Sweden, where one of my services is monitoring of customer servers with Nagios. I've also written over 20 plugins for Nagios and I've been appointed "Nagios Community Architect". Lately I've been switching from Nagios to Icinga2.

I've been working with (and studying) TCP/IP for over 15 years, on both Linux and Windows. Networking has always been part of field of study and a huge hobby of mine. I've been studying it first when got my electrical engineering degree, then at a security expert class and then at a two year long Linux System Specialist class.

I've been using LaTeX for many years for writing papers, books and documentation

I've been making websites on and off for about 20 years. Both for myself, my friends, some communties and for some companies.

I've written a swedish book about Python (Grunderna i programmering,  ISBN 9789198330007). I've also held courses in Python a couple of years  ago. I first learned Python as a part of a two year course about Linux.

Markdown is the way I write most of my documentation nowdays. I often use Pandoc to convert to other formats afterward.

Git is has been a central part of my life for many years. I manage everything from documentation, books, code and websites with Git.

I've been using OpenBSD on and off for the past three years for some servers.

I've been using various UNIX and UNIX-like systems for the past 20 years, ranging from Linux, BSD, Mac OS X to Solaris. I'm currently writing a book on UNIX system calls.

I've took several courses in Inkscape and worked with it for about two years on and off, both as a hobby and as a profession.

I've been using OpenVPN on serveral different platforms for about 5 years.

I've been using pfSense for several years, both for myself and for clients

I'm currently studing Amazon AWS and preparing for certificates

I've started writing Powershell scripts about a year ago as an assignment, and I ended up liking it a lot and learning more and more about it.

I'm running a couple of Graylog instances, both for myself and others.

Personal details

Jack-Benny P.

Summary

Technical skills