About

Updated: September 9, 2024

Welcome. Dedoimedo is a website dedicated to technology and software education, science, art, and (dark) humor. Its mission: to seek out new life and new civilizations to provide most detailed and accurate guides and articles you will find on the Web, on a wide range of topics, including operating systems, application reviews, security, and more. Over the past 17 years of its existence, Dedoimedo has attracted hundreds of thousands of followers, received several software nominations and awards, and been quoted in numerous respectable publications, including books and patents.

Dedoimedo mostly focuses on open-source technologies and Linux, but in its almost 3,000-article-strong portfolio, you will also find valuable information on Windows, virtualization, cloud, hardware, and other topics. Step by step, laced with humor and wit. There's something for everyone, from newbies to experts.

But that's not all. Dedoimedo also covers computer games, car reviews, 3D art, popular physics, and life philosophy. Hopefully you'll learn something new. Enjoy your stay.

Brief history

Back in 2006, I created Dedoimedo for two primary reasons: 1) I was curious and I wanted to learn about Web technologies 2) I was not happy with the quality of existing technical guides and tutorials available online. The all-too pervasive "all you need to do" clause in many an article left me wanting, so I decided to start writing about my software escapades, making sure that anyone who reads my tutorials will never be left with any gaps or questions.

I have used computers extensively for the last two and a half decades and have often had to solve difficult problems without instant, easy solutions. And so, I wish to make YOUR journey easier and more pleasant. My goal is to provide computer users worldwide with high-quality education and solutions to their problems, in the best fashion possible.

To that end, every single topic presented on Dedoimedo is explained to the latest detail, accompanied by multiple screenshots and examples. I never miss a step and I never assume! Everything you read has been thoroughly tested and proven to work in real, production setups.

This hobby soon became a serious effort, and Dedoimedo reached the 1,000,000 monthly pageview mark in 2012. Dedoimedo has also been nominated for the best FOSS advocate/evangelist by FOSS Force and Linux Journal in 2013, and awarded the best software blog by Rocky Bytes in 2015. Going strong ever since.

Author information

Dedoimedo is owned and run by Igor Ljubuncic: former physicist, contemporary IT nerd, fantasy & sci-fi book author, and persona extraordinaire. All in one that is.

Professional career highlights

Most, if not all of the information below, is publicly accessible:

Official byline

Igor Ljubuncic is a physicist by vocation and a Linux nerd by profession. Igor comes with many years of experience in the hi-tech industry, including medical, high-performance computing, data center, cloud, and hosting fields, with emphasis on complex problem solving and the scientific method. To date, Igor’s portfolio includes 15 patents, 21 books, several open-source projects, numerous articles published in leading journals and magazines, and presentations at prestigious international conferences like LinuxCon, CloudOpen, OpenStack days, IEEE events, and others.

Professional career

I currently work as an author and a freelance coach and mentor on public speaking, presentation skills and writing. Between 2018 and early 2024, I worked as a Product Manager for High Performance Computing and a Developer Advocate for a software company. Before that, I worked as a freelance strategy and business consultant. Throughout 2015-2016, I was a Principal Engineer with a cloud technology company.

In the period between 2008 and 2015, I worked as an Operating Systems Architect with an engineering computing team for one the largest IT companies in the world, developing new, innovative solutions for high-performance computing environments. From 2004 until 2008, I used to earn my bread working as a physicist in the medical imaging industry. My work expertise focused on problem solving and algorithm development. Earlier still, I worked in education for a while, including managing a team of science tutors. I'm certified in several major engineering methodologies, including MEDIC Six Sigma Green Belt, Design of Experiment, and Statistical Engineering.

Patents

I have fifteen patents registered and granted with the US PTO, some of which are also registered in other jurisdictions, including but not limited to: Web/HTML language assignment, checkpointing technologies, data center power management, scheduling, self-healing systems, data center security, autonomous cars safety, IVI systems & digital signage, online shopping & emotions, mobile devices & radiation, mobile devices & audio, flexible displays, drones, and a few others. You can read about these in detail on the US PTO portal or one of the reference sites.

Books

I am a prolific author, with 21 book publications. The portfolio covers technical books, novels in various fiction genres, and several anthologies, including a short story, The Girl with the Flaxen Hair, nominated for the 2014 Sidewise Awards for Alternate History!

Over the years, my fiction works have received favorable reviews from Publishers Weekly, Underground Book Reviews, Midwest Book Review, and SFFWorld. My technical book on problem solving in high-performance computing is part of the Computer Science undergraduate studies curricula at several universities worldwide. It has also been translated to Chinese.

Please check my Books section for more details, including fan pages, store pages, and more. Alternatively, you can also click on the thumbnail previews below to go directly to Amazon (and free download pages for the Linux kernel crash and Apache web server books).

The Betrayed
The Broken
The Forgotten
The Humbled
Prince Dietrich I
Prince Dietrich II
Prince Dietrich III
Decay
Darkness
Unnamed 3
I Shall Slay the Dragon!
The End
Wars to End All Wars
Ecotones
You Are Here
Welcome to Pacific City
Career book
Problem-solving book
System Administration Ethics book
Linux Kernel Crash Book
Apache Web Server guide

Conferences

Over the past decade, I have attended - and more importantly, presented and talked - at dozens of conferences, including the likes of LinuxCon, CloudOpen, Open Source Summit, OpenStack UG Meetup Bulgaria, OpenStack Day Budapest, DORS/CLUC, EDUCAUSE, KDE Akademy, Qt World Summit, Linux Application Summit, and others. I also had whitepapers accepted and presented at several IEEE events, including INCoS and HPEC. Notable appearances in the last few years (with more to come):

Dedoimedo presenting at LinuxCon 2014

CloudOpen 2015, Ansible is Sensible, funny slide

Dedoimedo presenting at LinuxCon 2016

Open-source projects

I have two free projects hosted on SourceForge.net, including a recursive implementation of LDD aptly called recursive-ldd and a program called simWANsim, which stands for simple WAN simulator, a nifty tool that allows simulating WAN traffic on local network.

Editorial work

I have also written for Open Content & Software Magazine (OCS-Mag) for several years. My articles have also been featured in Netrunner Magazine, Gizmo's Freeware (techsupportalert.com), DistroWatch, Linux Journal, Linux User & Developer, PCLinuxOS Magazine, OSNews, and others. A few among many links:

Awards & nominations

Dedoimedo has been nominated and awarded several times in its history. In 2015, Dedoimedo was awarded the first place in the best software blog category by Rocky Bytes. In 2013, Dedoimedo has been twice nominated for the Best Linux/OSS Blog, once by the Foss Force, where it took the respectable second place, and the other time by Linux Journal in their annual readers' awards poll. My site landed a most respectable fifth place, with 7.3% of global votes, after giants like Linus Torvalds, GitHub, Richard Stallman, and Jupiter Broadcasting.

My short story The Girl with the Flaxen Hair, featured in the WWI anthology Wars to End All Wars, has been nominated for the 2014 Sidewise Awards for Alternate History.

Certifications

Over the past decade and a half, I have been certified in several engineering methodologies, including MEDIC Six Sigma Green Belt, Design of Experiment, and Statistical Engineering, and on the Information Technology side: Linux System Administrator, LPIC-1, GIAC GSEC Silver, CCHD, and CCHA. I also studied for several cloud architecture exams but ultimately chose not to undertake them, as I became more senior and hands off in my career.

Tech stack

I began my digital life with Commodore 64 and Spectrum ZX80 as a child gamer. Next came the XT and then a giant leap to 486. This is when I started taking interest in computers on a deeper level, with innocent hacking pranks in DOS. After that, I studied Pascal in high school for three years. My university put me through a semester course of C language. Skillz that killz.

Since, I have delved deeply into a broad range of programming and numerical computation languages, both reflecting my professional needs and private passion and just general nerdiness. I have reasonable proficiency in Matlab, LabVIEW, BASIC, VB, HTML, CSS, RSS, BASH, TCSH, Perl, C, some JavaScript, plus a few other odd languages no one has heard of. But overall, I don't like coding.

Linux

I have used Linux in personal and professional capacity since 2004. Most of my work experience, as summarized in my book on problem solving, covers major projects and initiatives in a huge, global HPC environment (with high 10,000s of servers), with focus on kernel optimization, kernel crash analysis, automation, shared filesystems, checkpoint & restore, control groups, rebootless patching, and other technologies and systems. Some of this experience is reflected in the papers, presentations and patents mentioned earlier.

Virtualization & Cloud Computing

I have a broad practical experience and knowledge of most enterprise virtualization technology, and some familiarity with cloud technologies (although if you've seen one, you've seen them all). I have used and explored solutions that touched VMware, VirtualBox, Xen, KVM, Parallels, Linux Containers (LXC), Docker, Hadoop, Amazon Web Services, and others.

Windows

I have been a "heavy" Windows user since about Windows 3.1, with deep troubleshooting skills and knowledge, including BSOD analysis, WMIC, group policies, and more. In a personal capacity, I am most proud of saving someone's entire PhD thesis, worth four years of work - and no, no backup - from total ruin.

Other notable mentions

My GRUB and GRUB2 tutorials are cited in US PTO Application US 12/690,755 Profile-based performance tuning of computing systems by Red Hat Inc. Several of my technical articles have also been referenced in books and various technical publications, including Chef: Powerful Infrastructure Automation, Mastering Chef Provisioning, Full Circle Magazine, and others.

Please check the FAQ page for more details and some common Q&A.