Paper always beats rock and scissors. Because one of the few inventions greater than writing itself, is writing on paper. Paper writings are absolute, self-contained and transferable units of knowledge, which after publishing become and stay available and accessible for hundreds of years or more. Don’t take my word for it, there is this great…
Category: Tech
Advent of Code
Currently the yearly Advent of Code contest created by Eric Wastl is being held at adventofcode.com. That means the site is sprouting two daily programming challenges, until Christmas, to see who can solve them fastest. But it is not just about being fast of course, Advent of Code is a great way to improve your programming…
Save data from your broken Raspberry Pi SD card with GNU ddrescue
This week my Pi stopped working. After hooking up a monitor I saw kernel errors related to VFS. So the file system was obviously broken. Oops. The end conclusion is that the SD card is physically ‘broken’, but I still managed to salvage my data — which is more important than the card. Here’s how….
The Phoenix Project
When a co-worker handed me a copy of The Phoenix Project, the 8-bit art on the cover looked fun. But the tagline — ‘A Novel About IT, DevOps and Helping your Business Win’ — sounded a bit like the usual buzzword management lingo. But I was clearly wrong, I loved this book! It is unlike…
Linux server principles
This is a list, in no particular order, of principles to adhere when running a secure Linux server. SSH – Never allow direct SSH root access (set PermitRootLogin No). SSH – Do not use SSH keys without a passphrase. SSH – If possible, do not run SSH on a public IP interface (preferably use a…
GNU coreutils comm is amazing
Most people know sort and uniq (or even diff) and usually use a mix of these tools when comparing two files. However sometimes, there is a shorter solution than piping different commands together: comm is your answer! The comm(1) command is one of the most powerful but also underused text tools in the coreutils package. Comm’s…
My Vim setup
The following lines are in my .vimrc file and make working with Vim all the better! I keep it pretty basic, so I don’t use the very popular fugitive.vim or NERDTree plugin. Put these lines in ~/.vimrc or /etc/vim/vimrc (depending on your distro, sometimes they are already there but need to be uncommented), and you’re…
The Soul of a New Machine – Tracy Kidder
The Soul of a New Machine by Tracy Kidder from 1981 is one of those books that always seems to pop up when ‘computer-people’ share their book recommendations. Exhibit A, exhibit B, exhibit C and more, you get the picture. The “Pulitzer Price Winner” notion on the cover seemed promising enough and it was about computers, and I…
Favorite 2017 purchases
Here’s a chronological list of some of the physical things/tools/gadgets I bought in 2017. Physical as in, I’m leaving out experiences, books and cryptocoins. Here we go. The Sony MDR-ZX110 headphones are decent aka good enough for my use, but more importantly also cheap enough so I don’t have to worry when I break them,…
Django in 10 minutes
This post is for myself, two weeks ago. I needed something like this. Or, maybe it’s for you? You know a little bit of Python, kind of understand the MVC concept and have a clear understanding of RDBMS? Congratulations, you will have no trouble getting something up and running in Django in a couple of…
Elon Musk: Tesla, SpaceX, and the Quest for a Fantastic Future
This book by Ashlee Vance sat on my wish-list since it came out two years ago. So, long overdue, last week I finally got to it and boy, what a ‘fantastic‘ read it is. There is lot to say about the man, his ideas and the ways he goes about bringing those ideas to life….
Hacker News: sort user submissions by score
Hacker News is pretty much my goto site and sometimes I submit links or take part in the discussion. However when I recently tried to get a list of the links I submitted ordered by Hacker News score, I noticed this is not implemented on the site itself (as far as I can tell?). However…