Stuff I have written/presented
Submitted by gwolf on Wed, 09/22/2010 - 13:36
This morning, my laptop was stolen from my parked car while I was jogging. I do not want to make a big deal out of it.
Still, even though I am sure it was not targetted at my data (three other people at least were reporting similar facts in the same area), and the laptop's disk will probably just be reformatted, I am trying to limit the possible impact of my cryptographic identification being in somebody else's hands.
GPG makes it easy: I had on that machine just my old 1024D key, so it is just matter of generating a revocation certificate. I have done that, and uploaded it to the SKS keyservers - Anyway, here is my revocation certificate:
-----BEGIN PGP PUBLIC KEY BLOCK----- Version: GnuPG v1.4.10 (GNU/Linux) Comment: A revocation certificate should follow iHIEIBEIADIFAkyaOZwrHQJBIGNvbXB1dGVyIGNvbnRhaW5pbmcgdGhpcyBrZXkg d2FzIHN0b2xlbgAKCRDYDvNai7UnrzWAAKC34eF76JQjxrZqSjNwcC0dU/5VbACg gMIMmYg91Sl3y8KsZXdGj/rV7UE= =rdlT -----END PGP PUBLIC KEY BLOCK-----
But… What worries me more is access to the computers my ssh key works for. Yes, the ssh key uses a nontrivial passphrase, but still — SSH keys cannot be revoked (and this makes sense, as SSH should not add the delay, or potential impossibility, to check with a remote infrastructure whenever you want to start a session).
So, I generated a new key (and stored it at ~/.ssh/id_rsa.new / ~/.ssh/id_rsa.new.pub) and came up with this snippet:
Points about it you might scratch your head about:
Oh, by the way: If you noticed me knocking on your SSH ports... please disregard. Possibly at some point I connected to that machine to do something, or it landed in my .ssh/known_hosts for some reason. I currently have 144 hosts registered. I am sure I triggered at least one raised eyebrow.
And I will do it from a couple of different computers, to make it less probable that I miss some I have never connected from while at the particular computer I am sitting at right now.
So... Any ideas on how to make this better?
Submitted by gwolf on Sun, 09/19/2010 - 11:21
Asheesh posted When "free software" got a new name, which mentions about the transition period where the Free Software movement started its quest towards being understood by non-geeks, and when people started finding terms better suited for general (and specifically, business-minded) audiences.
We are talking about facts that reached concretion 12 years ago, when the term Open Source was coined and divulgated. That is already far in the past to try and change it – Still, during DebConf I was talking with several friends about it. In my opinion, there was never really the need to choose such an ambiguous name – In English, the word Liberty unambiguously refers to free as in freedom, with no conceptual links to gratuity. Liberty is also a concept held dear by the values of the USA society (which is the birthplace of our ideological movement, so it's specially important). Jimmy Kaplowitz pointed out a reason: Liberty is an incomplete word. You could translate what Asheesh's post mentions, Freed Software → Liberated Software, but libertydoes not exist as an adjective by itself, only when used as contrasting with an earlier more restricted situation. We can say some piece of software was liberated if it was born unfree, but what about things that were libre since the beginning?
So, yes, as beautiful as Liberty is, and as advantageous as such a concept would have been for us... Liberty seems to be too imperfect to be able to represent our movement.
Submitted by gwolf on Wed, 09/15/2010 - 18:24
Submitted by gwolf on Wed, 09/01/2010 - 17:52
I have been wanting to post for several days already, at least since this last Sunday. I have repeatedly bragged about taking part in the Ciclotón: The last Sunday every month, the city's government closes to automotive transit a ~33Km circuit, for cyclists to enjoy. And by cyclists, I mean people from all expertise ranges — Well, the very elite bikers will not take part of such a massive thing, but there are people pedalling a couple of blocks, people taking their small kids to drive a bit, and I recognized an amazingly large proportion of people doing the whole route.
Well, this last Sunday one lap was not enough for me — I did two laps, ~65Km.
(oh, and just for keeping the complaint current: After all, SportsTracker did release a version of thier software for the N95... But it requires Flash for using the webpage at all. I have several pointers at other applications... but am time-starved right now to start reviewing :-/ )
Anyway, I decided to do this double ciclotón in order to train for next week. If you are anywhere near Mexico City, you are invited - this is meant to be a large group ride, and looks very fun!
Doble Maratón Ciclista Urbano del Bicentenario
We are two weeks away from the 200 year conmemoration of the beginning of the Independence War in Mexico. A group of cyclists came up with the idea to organize a Double Marathon to celebrate! 84Km of biking in Mexico City:
For some reason, the distance numbers in that map were made... in miles :-P Anyway, the planned route will be:
It looks very fun. Besides, although it is not that flat, it is one of the flattest long distance routes you will ever have. The toughest part will be IMO the Northern part of Circuito Bicentenario and possibly some bits of Periférico towards Naucalpan. Then, a long flat stretch, with one long but not steep way up in Segundo Piso (near Las Flores), and a little stretch towards Ciudad Universitaria. Other than that, it looks very doable if you are in a moderately decent condition. And taking part in such a thing is very very worthy!
As a final note... This same Sunday, it has been somewhat publicized the first Día Nacional de la Bicicleta (Bycicling National Day) will be held all over the country, kickstarting the National Cycling Crusade. Sounds nice, right? Even impressive? Yeah, but... If you look at the published information (in the page I just linked), you will see several cities are opening cyclist circuits. For one day only, which means, it does not build awareness among the population on how easy, how convenient and how fun it is to use the bicycle as means of transportation. And not only that — The cyclist routes clearly make a point that cycling is a good way, at most, to have fun... But not a general habit we should all embrace. Lets see, as an example, the distances offered (only for the cities quoting route length):
...And so it goes. As you can see, several very important cities (i.e. Monterrey, Chilpancingo, Cuernavaca) put only a 2km route. 2Km by bike is... Nothing. 2Km is done at a leisurely pace in less than 15 minutes (I often sustain 20Km/h, which would mean 2Km in 6 minutes). And, in this short sample (the linked page has the information for several other states, but the pattern holds), most states are only making this in the largest city or two, completely forgetting the bulk of their territories. In my opinion, this "effort" was done backwardsly, and ends up delivering the exact opposite message to what should be done.
Submitted by gwolf on Fri, 08/27/2010 - 17:28
My hard drive does not currently make any additional sense.
Submitted by gwolf on Tue, 08/24/2010 - 07:51
Just echoing what happens in Planet Debian for people who follow my blog (or any other planet where it is syndicated) and is interested in DebConf processes — I'm specially thinking about people interested in preparing a bid for hosting a future DebConf, as well as people organizing hacking conferences who are interesed in understanding how DebConf works:
Richard Darst, a.k.a. our very invaluable MrBeige, started a series of posts describing various processes of DebConf organization. He explicitly asked me for comments while this series was still in planning/wiki stage, but I failed miserably at doing so ;-) So at least I'll publicize his work, linking from here:
I don't know if MrBeige is planning further parts for this series; if the past four were interesting, you should check on his weblog. Update: Yes, he is planned, and he has delivered. Adding them to the list as they flow...
Submitted by gwolf on Mon, 08/23/2010 - 20:54
During DebConf, I managed to squeeze out of the middle of everything for long enough to write a column, a short article for a participation I have every three months, for Mexican Software Gurú magazine. All in all, I liked the resulting text — The current number's main topic is alternative user interfaces.
I find it sometimes hard to define what Software Gurú's audience is — Probably, project leaders in software development; not the actual developers, but people who actually understand about coding... but care more about The Big Picture, Processes, Architecture Engineering and Buzzword Compliance. It is an interesting magazine, all in all, but with a focus and viewpoint I often feel myself not precisely comfortable with.
So, if this trimester's topic was alternative user interfaces, I decided to write on the history and future of the man-machine interface (Spanish only) (version in the magazine's site). My viewpoint comes from the fact that I do not believe we are in a state of so great, innovative changes that everybody is trumpeting, and I'd rather get others to really think on whether user interfaces have gone different in the last decades. Yes, there are many changes, but in form rather than essence.
Anyway, I shared this text with some friends. Some days later, when I was back in Mexico, Pooka/Alejandro Miranda lent me a very interesting book: Hacer clic: Hacia Una Sociosemiotica De Las Interacciones Digitales (Do click: Towards a Socio-semiotics of Digital Interaction (Cibercultura)), by Carlos Scolari. I am not yet even halfway through it, but I am enjoying it — This book speaks, so far, about the meanings of interfaces, and of the history of interfaces themselves, even forgetting that nowadays we (mostly) refer to interfaces as what we have between the man and the machine.
Sadly, I cannot find this book in English, as it is very well worth a read. But if the topic sounds interesting and you can understand the language, don't hesitate and pick up the book. It gives an interesting insight on the topic, for a group of people (us techies) used to looking at things in a much more human-cognitive-process-oriented way.
[update] I found this nice overview of the "Hacer clic" book, written as a presentation for the book. It explains precisely the part I am currently reading - The four metafora for interaction: Conversational, instrumental, superficial and spatial.
Submitted by gwolf on Wed, 08/18/2010 - 10:26
Online translators are not hot news anymore. Not by a long, long shot. Still, today I wanted to get a couple of words in Latin. And was amazed that Google's translation service does not (yet?) offer Latin as an option, so I turned to Translation Guide's free online translators.
And, as it always happens, I thought, hmmm... and what about the random ramblings on my site?
So on I went to Gunnar Lupus alio domus. Of course, several funny things popped up, many of which I don't think are proper Latin, but still, among lotsa' nonsense, I found that Planet Debian gets translated to Plagiarius Debian — Which possibly explains why many people have complained about other unauthorized planetoids plagarizing their posts!
Submitted by gwolf on Wed, 08/18/2010 - 08:00
This Monday, Debian celebrated its 17th birthday. Yay!
I was invited to celebrate the birthday at HacklabZAM, but could not make it due to the time (17:00-19:00, and I was just leaving work by 19:00), but still, had some beers with long-time geekish friends Iván Chavero, Rolando Cedillo, Manuel Rabade and Odín Mojica. Nice hanging around, good beer+pizza time, and explicit congratulations to Debian.
On the Debian front, Margarita Manterola, Maximiliano Curia, Valessio Brito and Raphael Geissert came up with a very fun Debian appreciation day page. It even included a (slight) hijacking of the bug tracking system's Web interface, showing happy fun balloons! Guys, thanks for a good laugh, and thanks for providing a vehicle for getting the users' thanks to the project!
All in all, that was a great reminder to what we have been repeating as a mantram throughout the last years: Lets keep Debian fun!
Submitted by gwolf on Tue, 08/10/2010 - 00:44
So, DebConf time is over once again. The two weeks worth of fifty weeks waiting are left behind once again, and it's back to get back to normal. DebConf was great — Yes, it always is, and that's what we are all saying, but hey - Seriously! Being in the same building than 300 crazed developers is always fun, and it's always better than last year's fun. A good highlight this year is that, given the number of Free Software and Free Culture groups that exist in USA's north-eastern coast, we had the opportunity to join a large crowd which has never been part of DebConf. Also, I must agree that the USA bid for DebConf was aiming to attract as many Debian people (developers, maintainers, or just happy users) which had not yet been to a DebConf before as possible. And it was a great success! I finally met several people I have long read in the mailing lists, in blogs or in IRC. A much higher proportion than usual, I'd venture to say. Another interesting phenomenon /methinks is that this year's DebCamp started much more staffed than usual: I arrived on the first day, Sunday 25, and there were ~40 people there already; I don't have the actual numbers, but we quickly grew, and the number started to stabilize past mid-week, only to (sharply) rise in the weekend, in time for DebianDay and DebConf start. Great time!
But, they say, nobody can go to the USA without buying some sweet toys, right?
Well, being the proud owner of six very hairy cats, I have thought into entering the looming and weaving industry... But cat hair, while abundant, I have heard is untreadable... Maybe due to the indisciplined, natural and independent personality of the cats (catonality should I say?)...
So I had two choices: Clean up my home quite often, or live in a –literally– hairy mess.
Enter choice #3: The Roomba!
I had been waiting to buy this thing for several years, as they refuse to send to Mexico or charge Mexican cards. So, I walked across Manhattan and got my very own robot cleaner!
For my further surprise, although I have not yet tried it (I don't even have a suitable cable yet), I found this:
Yay, the Roomba is actually hackable (via a 7 pin miniDIN serial port)! Wikipedia says that:
My first impressions? Well, the Roomba lazily charged its battery throughout the day today, and was hungry and ready when I arrived home. It is a but louder than what I expected, and –of course– my cats were not thrilled by the presence of a eighth animated and apparently sentient being at home. Their initial reaction was –of course– to be verrry alert of the thing. Twelve eyes were constantly pointing at the Roomba while mine alternated between them. As they measured the thing's speed and (I guess) inferred its movement patterns, they started escaping upstairs – A flat, round thing with no legs to be seen will not likely be able to climb the stairs. And they were completely right. At first, only Chupchic remained downstairs. After a bit, I went up to show them the Roomba didn't jump on us to eat our brains, and after a bit, Santa and Macusa joined. The Roomba roombed for maybe 90 minutes (this space is large, and decided it was enough... And slowly, the rest of them started coming down.
I would not say Roomba's cleaning is perfect, of course. Its room discovery algorithm is funny, and it even seems it's based on the mere chance of covering most (never all) of the space it has to clean. I had, of course, not fully studied it (after a single run, how could I?). It does make a honestly good attempt at cleaning under coaches, chairs and tables. It collected a fair amount of dust (on a house that seemed quite clean to me, I cannot imagine what would happen on a messy one). I have not yet played with the virtual walls (infrared transmitters which limit rooms as if a door was closed), but given the size of this house (and that I don't want it to clean around the cats' designated bathroom area), I guess I will end up using them regularly.
During DebConf, I heard one bad (stupid useless noisy thing) and two very good (it has radically changed my life) comments on the Roomba. I hope to shift the balance towards 3/4 and not towards 2/2!
Anyways... Thanks to each and every one of you. DebConf is great. Always great. Always a success. I cannot even thank specific teams. Debian Rules, and DebConf Rocks!
Submitted by gwolf on Mon, 08/02/2010 - 14:25
If you have seen me anywhere near my computer at DebConf, you probably have seen the face of a hurried, worried developer. Still, if you monitor my Debian-related activity, you will notice it is still quite low, even given my (much needed and very much enjoyed) vacations pre-DebConf. Yes, orga-team work is very time consuming, even if my role is far from central this year. And yes, DebCamp+DebConf are known for sucking time into social interaction, which is great but not so (formally) productive. And yes, I even took 1.5 days off to visit my family and a friend who live in the area...
Still, I managed to release! \☺/
I have been working with Pooka for the last ~2 years on the Seminary on Collaborative Knowledge Construction. We assembled a group of ~10 speakers/authors, each of whom prepared a chapter for a book meant for publication. Pooka and me coordinated the work, which took a long time because it was also an interaction experiment (and because we both did it only in our free time).
After the coordination work started fading, I took up the task of coming up with a way to translate it all into LaTeX (and fix a host of conversion bugs, and play with the available packages, and... Hey, I'm after all just a LaTeX newbie, and had to learn to tame the beast!), I stumbled upon that precious fact that makes so many projects release.
I stumbled upon a deadline.
We want to publish the book under the seal of IIEc-UNAM. Besides my workplace, it is a very well regarded university, and having its seal in our work is definitively a big plus. And the Publications Committee of my Institute is meeting this week - So I had to send our final manuscript by today.
Having a deadline overlapping with DebConf sucks. But somehow, I managed to do the needed work to my complete satisfaction. The work is now in the Committee's hands, and I expect to have more news soon(ish).
Oh, and where can you get our work? Well, if you register in our site, you will be able to read the whole contents. And once the book is approved and published, the whole work will be published online under a free (CC-BY-SA) license.
BTW, that probably means I will have more time to fix my Debian bugs and pending stuff! \☻/
Submitted by gwolf on Tue, 07/27/2010 - 19:53
If Tim can report his movements around New York, so can I! ;-) Sadly, due to Nokia deprecating my still-quite-new N95 phone by not allowing me to use their service anymore, I won't be able to share my routes with you – But anyway…
This morning I decided to take a quick run to start off the day on Riverside Park (the park where we had dinner yesterday). I went South for about 3Km and headed back (for, you guessed right, a grand total of 6Km), and decided that 45 minutes of exercising are enough to declare my day started - As I started at ~8:15, it was getting warm (specially when running under the sun). I am quite heath-intolerant; it's not unpleasant at all, but I will try to run earlier on future days.
Riverside is a long and narrow park. I ran Southwards by the lower trail, in the park itself, but ran Northwards by the upper trail, in the wide sidewalk between the street and the park. The way South was also way flatter, while the way back goes up and down repeatedly.
I don't think I will run on a daily basis, but that will be determined by my mood when I open my eyes in the morning ;-) Anyway, riverside is a very nice run, and I expect to head North. I still am not back to running ~10Km, so I won't do the Central Park trail Tim did - But I'll surely go run there as well a bit. And rent a bike one of this days for a ~2hr morning ride, of course!
Submitted by gwolf on Mon, 07/26/2010 - 13:36
I spent the past three weeks away from basically any kind of usual contact. I took a three week vacation in Argentina (Buenos Aires, Entre Ríos, Tucumán, Salta, Jujuy, Córdoba), got my first snow experience and enjoyed a real lot... But got completely disconnected from all of my usual activities... and responsabilities :-}
Anyway, yesterday afternoon I landed in New York. Arrived to Columbia around 2PM, and spent most of the day zombying around with the Debian crew. And today it starts feeling like the real job is starting.
As always, there is a lot of excitement when DebConf starts. I have many items I want to work on, and most are even Debian related ;-) So, lets get work flowing!
Submitted by gwolf on Fri, 07/02/2010 - 14:24
At keyring-maint, we got a request by our DPL, querying for the evolution of the number of keys per keyring – This can be almost-mapped to the number of Debian Developers, Debian Maintainers, retired and deleted accounts over time since the keyrings are maintained over version control.
Stefano insisted this was more out of curiosity than anything else, but given the task seemed easy enough, I came up with the following dirty thingy. I'm sure there are better ways than cruising through the whole Bazaar history, but anyway - In case you want to play, you can clone an almost-up-to-date copy of the tree: bzr clone http://bzr.debian.org/keyring/debian-keyring/
And as a result... Yes, I fired up OpenOffice instead of graphing from within Perl, which could even have been less painful ;-) I had intended to leave graphing the data raw (also attached here) as an excercise to the [rl]eader... But anyway, the result is here (click to view it in full resolution, I don't want to mess your reading experience with a >1000px wide image):
A couple of notes:
Anyway, have fun with this. Graphics are always fun!
Submitted by gwolf on Fri, 06/18/2010 - 21:44
With due apologies and thanks to my dear and crazy friend UCH:
The bad translation is completely my fault.
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