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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.

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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

Re: Python's sad, unimaginative Enum; Some explanation; Printing binary trees sideways; About "Python's sad, unimaginative Enum"; Atoms in python; Some good feedback here; Frustration Understood; I agree with you #nt; What would be imaginative?; Re: Enum; this is fucking useless; Enum; Python's sad, unimaginative Enum; Possible Fix; Work, Exhaustion, Vacation; VirtualBox with Centos 6.3 to 6.4, client; Matasano - Programming Lessons Learned; PDF to HTML; Alternate Substitution; Why RSA Works; Trigger; Dreaming of Death; Example: Tracing; Using Coroutines In Protocol Simulations; Python 3.3 Only; Pure Python SHA1 and MD4 Implementations; Ubuntu on VirtualBox; Starting TOR as a service on OpenSuse 12.3; 1001 Albums; Using fail2ban on OpenSuse 12.3; PPPoE on OpenSuse 12.3; Good Article on Unified Physics; It's Police (Carabineros); Linux Software for Listening to and Exploring Music; Android is Pretty Bad; Lucky Number; 3D Printing for Casting; Cover Art for MPDroid; Who'd a thought the French were so bigoted?; PS Input Signal; Small Problem with Roksan K2 Amp; Roksan K2 Amp + ATC SCM7 Speakers; Do What Makes Sense; Re: Arguing About Tests, Still; Arguing About Tests, Still; Images; Good Article on NY Drummers; Related Bug Report; Getting Python 3.3 and Virtualenv Working in OpenSuse 12.3; How I Am; Awesome video about digital audio; The Difference Between Dimensional and Normalized Databases; The rise of the new Chinese bogeyman; Updated Syntax; Very First Steps to C-ORM; The Ideal User Interface For Music Exploration; Can The Republicans Be Saved?; Rate Limiting Calls to EchoNest; Mods to Cache; Comparing UYKFG and UYKFD/E/F; Someone Else is Concerned; EchoNest-based Playlist Generator for MPD; Example Voting Results; A Heavyweight Python Cache; Identifying Artists with EchoNest; Notes on Pregalex / Pregabalina / Lyrica; The Neil Cowley Trio; Drake - Make for Data; A Reliable Python Web Service; Useful Python Date/Time Library?; Need to Sleep, But this is Good; Command Line Set Difference; Little Details...; Linux Command Line Tricks; AutoTools Tutorial; Hangman Tactics; A Tor Proxy Embedded In A Web Page; Tree (Nested Dicts) in Python; Sleeping at Parties; I Know Someone Who Hurts Other People; Light and Tea; Description of the LCS35 Time Capsule Crypto-Puzzle; Re: I can relate to that ...; I can relate to that ...; Re: It's 2012 Why Does My IDE Suck?; My Own Alternative Medicine; Nice explanation of SVM; Why and How Writing Crypto is Hard; Re: It's 2012 Why Does My IDE Suck?; Incremental Regular Expressions; BBC Map Confused at Pole; Social Media: Ground Zero in the Culture War; My Visit to the Psycho Doc; Learning Modern 3D Graphics Programming; Hope you got some crackers to go with the cheese; Re: But how easy would it be ...; But how easy would it be ...; Powerline Freq Fingerprinting of Audio; The Folly of Scientism; Cheese - Because You're Going to Die Anyway; Another GPU Success - PyCUDA, Cross-Correlations

Brother HL-2070N on Linux

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

Date: Fri, 3 Aug 2007 21:54:27 -0400 (CLT)

We just bought a laser printer - Brother HL-2070N.  It's fairly compact,
nice looking, monochrome, network printer and it was very easy to
configure for both Linux (Suse) and Mac (OS X).

I connected it via ethernet, turned it on, and it requested an address via
DHCP.  I checked what address was assigned and pointed a browser at the
address - it contains a web server that lets you do all the configuration.

So I gave it a fixed IP address (not sure this was necessary - the Mac at
least can use rendezvous) (and then changed the browser to the new
address!).

Brother has rpms available on its web site.  You need both the standard
lpr and the "CUPS wrapper" (cupswrapperHL2070N-2.0.1-1.i386.rpm 
brhl2070nlpr-2.0.1-1.i386.rpm).  I downloaded those and installed them
with rpm --install.  At that point I saw a strange error about pstops not
found so I used Yast to install psutils.

Then I pointed my web browser at http://localhost:631 and the printer was
there, registered.  The Brother site mentioned copying a file for AMD64
but it wasn't necessary - it just worked.

By default the config is for USB.  I changed the settings via CUPS to be
at the address I had configure earlier (ie http://10.2.0.4/ipp - the ipp I
took from the examples on the CUPS page).

A test page printed fine (and the toner save mode looks plenty good enough
so I enabled that).

On the Mac we installed a driver from the provided CD and then added a
printer through the normal admin interface.  It did some kind of
autodiscovery and worked fine too.

The only downside is that the supplied toner is a "Starter Cartridge" with
about half the capacity of a normal cartridge.  It didn't say that
anywhere on the box, or on the website from the shop we bought it from.

Andrew

Problems with OSX (Apple Mac)

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

Date: Thu, 1 Jan 2009 22:42:00 -0300 (CLST)

Printing from the latest OSX, the printer would not respond (it stayed
asleep, with some poking CUPS could be provoked into giving an
uninformative error).  A comment on Amazon suggested a DNS lookup issue,
but that seemed to be windows-related, and the problem persisted even when
I supplied a name via DNS.

I eventually solved the problem by configuring the printer (when first
added) to use the LPD daemon rather than CUPS.

Andrew

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