DIY Krampus - Album on Imgur
The start of a halloween pneumatic dummy idea.
pvc  dummy  halloween 
7 days ago
Secure ledgers don't require proof-of-work
Secure ledgers vs Blockchains and the need for distributed consensus with PoW.
bitcoin  blockchain  dag  proof-of-work  proof-of-stake 
4 weeks ago
Interfacing Python and C: Advanced “ctypes” Features – dbader.org
Tutorial on using ctypes to wrap C libraries in python code.
c  python 
4 weeks ago
Running a Tor Relay « etbe - Russell Coker
I have insanely fast internet, I think it would be good to run a tor relay locally. Plus having a hidden service setup would be neat, too.
tor 
5 weeks ago
Naked Pings – Mark McLoughlin
Nice layout of all the reasons that `thcipriani: you around?` is painful.
irc  etiquette 
5 weeks ago
Txh5y.gif (333×200)
Illustrated Lockpicking gif I found useful
lockpicking  via-reddit 
6 weeks ago
Pipe Logic
Bulding logic gates with /dev/null and /dev/zero
logic  gates  electronics  software  programming  art 
10 weeks ago
Tutorial: Making annoying rainbows and other color cycles in Javascript
Shows how to transition smoothly in rgb colorspace using Math.sin. I stumbled upon this looking at an explanation for the lolcat algorithm. This is almost exactly what I was looking for.
sine  math  javascript 
11 weeks ago
Using ANSI Color Codes to Colorize Your Bash Prompt on Linux - BitMote
good layout of 3-bit and 8-bit color on the terminal. Also mentions block-drawing characters.
bash  colors  ansi 
11 weeks ago
Snowflake macro photography
A mind boggling setup for macro photography with some awesome results.
photography  macro  chdk 
11 weeks ago
GNU Coreutils: Date input formats
Our units of temporal measurement, from seconds on up to months, are so complicated, asymmetrical and disjunctive so as to make coherent mental reckoning in time all but impossible. Indeed, had some tyrannical god contrived to enslave our minds to time, to make it all but impossible for us to escape subjection to sodden routines and unpleasant surprises, he could hardly have done better than handing down our present system. It is like a set of trapezoidal building blocks, with no vertical or horizontal surfaces, like a language in which the simplest thought demands ornate constructions, useless particles and lengthy circumlocutions. Unlike the more successful patterns of language and science, which enable us to face experience boldly or at least level-headedly, our system of temporal calculation silently and persistently encourages our terror of time.

… It is as though architects had to measure length in feet, width in meters and height in ells; as though basic instruction manuals demanded a knowledge of five different languages. It is no wonder then that we often look into our own immediate past or future, last Tuesday or a week from Sunday, with feelings of helpless confusion. …

—Robert Grudin, Time and the Art of Living.
date  gnu  via-brennen  quotes 
11 weeks ago
The drunken bishop: An analysis of the OpenSSH fingerprint visualization algorithm
When you use VisualHostKey in ssh it draws a little picture like an identicon for the host, this discusses the algorithm it uses to do that.
crypto  programming  security  ssh 
12 weeks ago
On Abstraction – Zach Tellman - YouTube
Good philosophical deep-dive into abstract in and how to describe its characteristics.
programming  abstraction  architecture  videos 
september 2017
Digital Signal Processing - Lab Infomation
Bunch of neat looking labs all related to radio and signal processing.
rtl-sdr  sdr  ham  radio 
september 2017
Flag of Mars - Home
What it says on the tin. Simple high-contrast chevron on a white background.
flags 
september 2017
Cidersage - Hard Cider, Mead, and Miscellany from the Front Range of Colorado
Good page on cider making from a local fellow. Lots of very applicable information here!
cider  homebrewing 
september 2017
A Cypherpunk's Manifesto
The importance of privacy. The difference between privacy and secrecy. "information doesn't want to be free, it longs to be free'
privacy  cypherpunk  secrecy  internet 
august 2017
The Believer - Destroy All Monsters
Good and only somewhat cringy story about meeting up with E Gary Gygax to play DnD.
games  dnd  longreads 
august 2017
Roads and Bridges: The Unseen Labor Behind Our Digital Infrastructure
Paper about how open source software is ubiquitous and used in for-profit companies that are selling for billions, but(!) the open-source software itself is under funded or under staffed or both. Opens with the revelations from heartbleed and openssl.
software  open  libre  longreads  pdf  openssl  heartbleed 
august 2017
docker-cp - Copy files/folders between a container and the local filesystem. - Linux Man Pages (1)
I have no idea why `man docker-cp` on my debian machine has basically nothing in it. This was very helpful.
man  docker  docker-cp 
august 2017
Casually removing root files
An interesting quirk of linux directory permissions. Somehow I am constantly surprised. Basically, if you have `wx` on a directory you can remove a file inside.
permissions  file  linux 
august 2017
Knolling - Wikipedia
A fun about lining all your stuff up at 90 degree angles. I have the feeling I would never find this again if I didn't bookmark it.
wikipedia  via-hackernews  design 
august 2017
On a technicality / fuzzy notepad
A sad story about building communities that is sad because of how often it is true.
community  via-brennen  internet 
august 2017
Python Entry Points Explained
Evidently entry_points in setup.py can be used for more than I was aware. All I was aware of was console_scripts, so I suppose this shouldn't be surprising.
entry_points  python  setup.py 
august 2017
Understanding sudoers(5) syntax
This is what I'm looking for 90% of the time when I do `man suoders`. In fact, in a fit of frustration, I started writing this exact page. After a bit of searching I found this and stopped writing this exact page. Now I'll just go to pinboard.in/u:thcipriani/t:sudoers instead :)
sudo  sudoers  sysadmin 
august 2017
Docker Pattern: The Build Container – Alexei Ledenev – Medium
tl;dr

docker build -t build-img -f Dockerfile.build .
docker create --name build-cont build-img
docker cp build-cont:/sweet/juices local-juices
docker build -t prod-img -f Dockerfile
where
Dockerfile has line COPY local-juices /some/path/inside/docker/juices

It's a pattern. Look it up. This is the world where I live.
docker  containers  CI 
july 2017
Jonathan Dowland
I am an admirer of this ikiwiki site. It is really nicely structured. It's got some good reads, too :)
ikiwiki  blog 
july 2017
The Story Behind the World’s Most Famous Desktop Background
The story behind the bliss background from Windows XP. It's not really much of a story, so much as it is a background. It's still got to be the most surreal thing that will happen to that photographer - to see a photo he took everywhere he looks. Probably still.
art  photography 
july 2017
The EasyDens by Anton Paar | MoreBeer
A super accurate means of measuring density. I kind of want. $500 want? Probably not. But I'll pin for future reference.
brewing  beer 
july 2017
jordan orelli - How to use interfaces in Go
A good overview of interfaces and how to write types that utilize them well.
golang  programming 
july 2017
Recipes — World Aeropress Champtionship
This is the method I tend to use to make aeropress coffee. I can never find this page though.
coffee  aeropress 
july 2017
Cigar City Maduro Brown Clone
Tried this the other day. Is an amazingly smooth brown ale. Would like more esters than this one had, but I think that's probably a yeast selection thing, I think the grain-bill is spot-on what I want for a Northern English Brown Ale. Would like to try with wyeast 1469 or wyeast 1275.
brewing  beer 
july 2017
Brewing Bavarian Hefewiezen - Harold Gulbranson
Harold Gulbranson's presentation at NHC a few years back. Compares mash schedules and fermentation temperatures for brewing hefeweizen.
aha  beer  brewing  haroldgulbranson  hefeweizen 
june 2017
The Northern Brewer Homebrew Forum :: View topic - The Great Bavarian Weissbier Project of 2007
Amazing collaboration of folks figuring out how to brew an authentic Bavarian Weissbier. If I didn't have a very vivid memory of this thread I would have never found it. Northern Brewer changed their forum software and threw all this work by their community away.
beer  brewing  hefeweizen  via-northernbrewer  weissbier 
june 2017
AWS VPC Core Concepts in an Analogy and Guide
Looks like a good article on Amazon's VPC.
networking  aws 
june 2017
Technovelty - Zuul and Ansible in OpenStack CI
It is an interesting point that Jenkins, especially in OpenStack's CI setup, is little more than a permanent SSH agent and script runner. Using zuul in CI (like we do at the foundation) means that Jenkins is very dumb. Getting rid of it entirely may be throwing out the baby with the bathwater -- sure ansible can run tasks and (evidently) you can stream them in realtime as they happen, but I think visibility is lessened. The flip side of this is that Jenkins has a horrible UI, perhaps particularly when it comes to visibility. There is, however, something to be said for robust tested solutions.

I'm ambivalent about this idea is what I'm saying.
CI  ansible  zuul  openstack 
june 2017
Microformats for IkiWiki
A page that includes some template modifications to allow microformats in ikiwiki. I think ideally IkiWiki would support webmentions, too. That'd be neat.
ikiwiki  blog  microformats  semantic-web 
june 2017
Don't be fooled: Metadata is the real data | Standard Notes Blog
A good argument about why metadata is important. Preaching to the choir, as all of these pieces I bookmark are, but still important to remember.
privacy  security  metadata  nsa 
june 2017
Macro Field Studio - Outdoor Photographer
A cool technique for taking outdoor photographs that kind of look like Audubon drawings.
photography  macro 
june 2017
More shell, less egg - All this
That great story where Donald Knuth creates a literate Pascal program to count the frequency of words in a text file, McIlroy does the same thing in a few lines of shell. I have no idea if you can learn anything from this, but it sure is interesting.
programming  knuth  mcIlroy  software 
june 2017
The Evolution of Code Deploys at Reddit – Upvoted
How reddit deploys code and how they have historically. This seems to mirror a lot of the various iterations of how code-deployment works at WMF. Interesting to see software develop slowly over many years.
deployment  python  software 
june 2017
Inbox Zero for Life – Keith Rarick
Seems basically how I handle email: as fast as possible either flag or delete things. Probably not a novel means of handling email.
email  inboxzero 
june 2017
Kubernetes for Sysadmins – Kelsey Hightower at PuppetConf 2016 - YouTube
Kelsey Hightower demos k8s application. Also some explanation of why puppet is not needed in a container.
containers  docker  k8s 
june 2017
Please, enough with the dead butterflies! – Emily S. Damstra
Evidently artistic depictions of butterflies are mostly drawn from dead, pinned butterflies. As is evidenced from their wing position.
butterfly  insects  entomology 
june 2017
The Nature of Code
Introduction to code via the processing programming language. This is, I think, one of the most interesting ways in which one could learn to program.
programming  processing  tutorial  via-hackernews  books 
may 2017
The problem with maps.
Interesting post about map projections and their distortions.
maps  geography  D3  mercator  javascript 
may 2017
Architecture as Photography - David Campany
Essay about architectural photography ranging from View from the Window at Le Gras circa 1826 until today.
longreads  architecture  photography 
may 2017
Institutional memory is still a weak area – interi
Google docs and institutional memory. Man oh man do I hate Google docs.
memory  google  googledocs 
may 2017
Action Castle (PDF) — Memento Mori Theatricks
An AFK text-based adventure game. Unclear if this will be any fun for the human text-based but it's probably worth $1.99 to find out.
games  text-based-adventure 
may 2017
War to the Knife: Bleeding Kansas, 1854-1861
History book from when Kansas was interesting.
kansas  books  toread  via-brennen 
may 2017
Kyle Isom: "OpenSSH Keys: A Walkthrough"
Walk through of various key formats and conversions.
ssh  security  openssh  cryptography  golang 
may 2017
How to measure noise in digital camera raw images | PanoramaShots
Measuring sensor noise with open source tools. Seems neat. I have not yet grok'd to fullness.
photography  ISO  sensor  noise 
april 2017
Nikon D610 Quick Reference Guide
A quick version of all the settings you care about on the d610. This is pretty much what I'm looking for every time I google something I should already know about my camera.
photography  nikon  d610 
march 2017
Taking Interior HDR Vertorama Shots - HDR Cookbook by farbspiel
I see lots of cool photos of interiors that are excruciatingly detailed. I guess these are called "vertoramas" since they are vertical space panoramas. Anyway, this is a neat page about making HDR vertoramas. For whatever that is worth.
photography  panorama  hdr  tutorial  360 
march 2017
Equirectangular Panorama with AutoPano Giga | Shutter Experiments
A short tutorial on creating 360° panoramas using a DSLR hand held. I have been interested in getting something like a Sigma 8mm precisely for its 180° FoV; however, this tutorial makes it seem like with a little extra work I could get similar results without another lens, which is appealing to me.
photography  linux  panorama  360 
march 2017
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