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Welcome to my blog, which was once a mailing list of the same name and is still generated by mail. Please reply via the "comment" links.

Always interested in offers/projects/new ideas. Eclectic experience in fields like: numerical computing; Python web; Java enterprise; functional languages; GPGPU; SQL databases; etc. Based in Santiago, Chile; telecommute worldwide. CV; email.

Personal Projects

Lepl parser for Python.

Colorless Green.

Photography around Santiago.

SVG experiment.

Professional Portfolio

Calibration of seismometers.

Data access via web services.

Cache rewrite.

Extending OpenSSH.

Last 100 entries

LPIR - Steganography in Practice; How I Am 6; Clear Explanation of Verizon / Level 3 / Netflix; Teenage Girls; Formalising NSA Attacks; Switching Brakes (Tektro Hydraulic); Naim NAP 100 (Power Amp); AKG 550 First Impressions; Facebook manipulates emotions (no really); Map Reduce "No Longer Used" At Google; Removing RAID metadata; New Bike (Good Bike Shop, Santiago Chile); Removing APE Tags in Linux; Compiling Python 3.0 With GCC 4.8; Maven is Amazing; Generating Docs from a GitHub Wiki; Modular Shelves; Bash Best Practices; Good Emergency Gasfiter (Santiago, Chile); Readings in Recent Architecture; Roger Casement; Integrated Information Theory (Or Not); Possibly undefined macro AC_ENABLE_SHARED; Update on Charges; Sunburst Visualisation; Spectral Embeddings (Distances -> Coordinates); Introduction to Causality; Filtering To Help Colour-Blindness; ASUS 1015E-DS02 Too; Ready Player One; Writing Clear, Fast Julia Code; List of LatAm Novels; Running (for women); Building a Jenkins Plugin and a Jar (for Command Line use); Headphone Test Recordings; Causal Consistency; The Quest for Randomness; Chat Wars; Real-life Financial Co Without ACID Database...; Flexible Muscle-Based Locomotion for Bipedal Creatures; SQL Performance Explained; The Little Manual of API Design; Multiple Word Sizes; CRC - Next Steps; FizzBuzz; Update on CRCs; Decent Links / Discussion Community; Automated Reasoning About LLVM Optimizations and Undefined Behavior; A Painless Guide To CRC Error Detection Algorithms; Tests in Julia; Dave Eggers: what's so funny about peace, love and Starship?; Cello - High Level C Programming; autoreconf needs tar; Will Self Goes To Heathrow; Top 5 BioInformatics Papers; Vasovagal Response; Good Food in Vina; Chilean Drug Criminals Use Subsitution Cipher; Adrenaline; Stiglitz on the Impact of Technology; Why Not; How I Am 5; Lenovo X240 OpenSuse 13.1; NSA and GCHQ - Psychological Trolls; Finite Fields in Julia (Defining Your Own Number Type); Julian Assange; Starting Qemu on OpenSuse; Noisy GAs/TMs; Venezuela; Reinstalling GRUB with EFI; Instructions For Disabling KDE Indexing; Evolving Speakers; Changing Salt Size in Simple Crypt 3.0.0; Logarithmic Map (Moved); More Info; Words Found in Voynich Manuscript; An Inventory Of 3D Space-Filling Curves; Foxes Using Magnetic Fields To Hunt; 5 Rounds RC5 No Rotation; JP Morgan and Madoff; Ori - Secure, Distributed File System; Physical Unclonable Functions (PUFs); Prejudice on Reddit; Recursion OK; Optimizing Julia Code; Cash Handouts in Brazil; Couple Nice Music Videos; It Also Works!; Adaptive Plaintext; It Works!; RC5 Without Rotation (2); 8 Years...; Attack Against Encrypted Linux Disks; Pushing Back On NSA At IETF; Summary of Experimental Ethics; Very Good Talk On Security, Snowden; Locusts are Grasshoppers!; Vagrant (OpenSuse and IDEs); Interesting Take On Mandela's Context; Haskell Cabal O(n^2) / O(n) Fix; How I Am 4

© 2006-2013 Andrew Cooke (site) / post authors (content).

Java plugin for Firefox 3 on OpenSuse 11 (64 bit)

From: "andrew cooke" <andrew@...>

Date: Sun, 27 Jul 2008 12:16:13 -0400 (CLT)

This is what I had to do to get Java plugin workingon OpenSuse 64 bit with
Firefox 3:

- In Yast (install programs), when I searched for "firefox" I did not see
a 32bit package.  So instead, I had to select the installed (64 bit)
package, then click on the "versions" tab and select the latest "i586"
version (this was the same version number os the x86_64 package installed
previously).

- Because (I think) this forces the Firefox from the 32bit repo, rather
than a 32bit package from the 64bit repo, dependencies don't work quite
right.  As a consequence, doing that alone gets the error "Could not find
compatible GRE between version 1.9.0.1 and 1.9.0.1." when you run FIrefox
from the command line.

- To fix the above, also select mozilla-xulrunner190-32bit from Yast.

- Move my old ~/.mozilla directory somewhere else (this means all settings
are lost - perhaps its not necessary?)

The above (once you let Yast do its thing) gets you 32bit Firefox, but not
Java support.  You may be able to load Java via Yast too, but because I
develop with Java I have various versions instaleld elsewhere.  One of
these is a 32bit JRE (so download a 32bit JRE if necessary).  Then copy or
link the file jre/plugin/i386/ns7/libjavaplugin_oji.so to 
/usr/lib/browser-plugins/

With that, you can see the Independent's crossword puzzle....

Andrew

Not the Best Solution in General

From: "andrew cooke" <andrew@...>

Date: Tue, 5 Aug 2008 21:32:24 -0400 (CLT)

The approach above may not be the best solution in general.  According to
this post -
http://linux.derkeiler.com/Newsgroups/alt.os.linux.suse/2008-07/msg00714.html
- this should work "out of the box".  They are using a Java install from
openSuse 11, which is what most people would want to do.

I did not do that because I am a software engineer working with Java and I
need to be able to swap between different Java versions quickly and
reliably, so I install Java separately, by hand.

So please, don't follow my instructions (which seem to be a common google
search result!) unless you are in a similar position.

Instead, try installing Java with YaST.

Andrew

Open JDK Works

From: "andrew cooke" <andrew@...>

Date: Sat, 23 Aug 2008 16:38:57 -0400 (CLT)

Just to confirm - the instructions in the link above work fine (use YaST
to install the open JDK Java and plugin).

: rpm -qa | egrep "(java|moz|fox)"
kaffeine-mozilla-0.2-0.pm.1
mozilla-xulrunner190-gnomevfs-1.9.0.1-3.2
MozillaFirefox-translations-3.0.1-4.1
java-1_6_0-openjdk-1.2_b09-9.1
mozilla-nspr-32bit-4.7.1-18.2
mozilla-xulrunner190-translations-1.9.0.1-3.2
MozillaFirefox-3.0.1-4.1
java-1_5_0-gcj-compat-1.5.0.0-65.1
mozilla-nspr-4.7.1-18.2
MozillaFirefox-branding-openSUSE-3.0.1-1.1
mozilla-nss-3.12.0-24.1
mozilla-xulrunner190-1.9.0.1-3.2
java-1_6_0-openjdk-plugin-1.2_b09-9.1

Andrew

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