warning: Creating default object from empty value in /home/gwolf/drupal6/modules/taxonomy/ on line 33.

#FLISOL at Facultad de Ingeniería, UNAM - April 25 and 26 @lidsol @comunidadfi @die_fi_unam @FIUNAM_MX #FIUNAM

Submitted by gwolf on Wed, 04/10/2019 - 13:36

After several years of absence, LIDSOL (Laboratorio de Investigación y Desarrollo de Software Libre) is once again organizing a FLISOL!

And what is a FLISOL? It is the Festival Latinoamericano de Investigación y Desarrollo de Software Libre — An activity that started off as an installfest, but went on to become a full set of conferences. Set of conferences? Yes, because FLISOL happens more-or-less simultaneously (the official date is the last Saturday of April, but there is tolerance for it to happen up to a couple of weeks around it) all over Latin America. This year, FLISOL will be held at different cities in Germany, Argentina, Bolivia, Brazil, Chile, Colombia, Costa Rica, Cuba, Ecuador, Spain, El Salvador, Guatemala, Honduras, México, Nicaragua, Panamá, Paraguay, Perú, Rep. Dominicana, Uruguay and Venezuela.

So, besides the install fest that will be continuously happening on tables at the entrance of the auditorium, we will have a very interesting set of talks for Thursday and Friday, April 25 and 26, at the main auditorium of Facultad de Ingeniería (Auditorio Javier Barros Sierra):

A rough translation for the talks (yes, this is aimed at a local audience, but my blog is in English for $reasons ;-) ) follows:

Thursday, April 25
Hackers and Free Software, the immune system of Internet (Hiram Camarillo)
The Debian project: Beyond the mother of all distributions (Gunnar Wolf)
Advantages of communities, and how to contribute (Luis E. Jiménez Robles)
DeepDream with TensofFlow (Alejandro Hernández)
Science + Free Software = <3 (Diego Barriga)
Modbus Protocol: A present risk in Industrial Control Systems (Paulo Contreras Flores)
Friday, April 26
It's not your friend, it's proprietary software (Paul Aguilar)
Introduction to Fedora (Efrén A. Robledo)
Fedora Containers Lab (dockerless containers) (Alex Callejas)
Programmers sought: How to save the world without dying in the attempt (Irene Soria)
git + CI + CD = Devops (Andrés Hernández)

Readying up for the second "Embedded Linux" diploma course

Submitted by gwolf on Tue, 01/12/2016 - 11:28

I am happy to share here a project I was a part of during last year, that ended up being a complete success and now stands to be repeated: The diploma course on embedded Linux, taught at Facultad de Ingeniería, UNAM, where I'm teaching my regular classes as well.

Back in November, we held the graduation for our first 10 students. This photo shows only seven, as the remaining three have already relocated to Guadalajara, where they were hired by Continental, a company that promoted the creation of this specialization program.

After this first excercise, we went over the program and made some adequations; future generations will have a shorter and more focused program (240 instead of 288 hours, leaving out several topics that were not deemed related to the topic or were thoroughly understood by students to begin with); we intend to start the semester-long course in early February. I will soon update here with the full program and promotional material, as soon as I receive it. update (01-19): You can download the promotional information, or go to an (unofficial) URL with the full information. We are close to starting the program, so hurry!

I am specially glad that this course is taught by people I admire and recognize, and a very interesting mix between long-time academic and stemming from my free-software-related friends: From the academic side, Facultad de Ingeniería's professors Laura Sandoval, Karen Sáenz and Oscar Valdez, and from the free-software side, Sandino Araico, Iván Chavero, César Yáñez and Gabriel Saldaña (and myself on both camps, of course ☺)

Can printing be so hard‽

Submitted by gwolf on Tue, 09/23/2014 - 13:23

Dear lazyweb,

I am tired of finding how to get my users to happily print again. Please help.

Details follow.

Several years ago, I configured our Institute's server to provide easy, nifty printing support for all of our users. Using Samba+CUPS, I automatically provided drivers to Windows client machines, integration with our network user scheme (allowing for groups authorization — That means, you can only print in your designated printer), flexible printer management (i.e. I can change printers on the server side without the users even noticing — Great when we get new hardware or printers get sent to repairs!)...

Then, this year the people in charge of client machines in the institute decided to finally ditch WinXP licenses and migrate to Windows 7. Sweet! How can it hurt?

Oh, it can hurt. Terribly.

Windows 7 uses a different driver model, and after quite a bit of hair loss, I was not able to convince Samba to deliver drivers to Win7 (FWIW, I think we are mostly using 64 bit versions). Not only that, it also barfs when we try to install drivers manually and print to a share. And of course, it barfs in the least useful way, so it took me quite a bit of debugging and Web reading to find out it was not only my fault.

So, many people have told me that Samba (or rather, Windows-type networking) is no longer regarded as a good idea for printing. The future is here, and it's called IPP. And it is simpler, because Windows can talk directly with CUPS! Not only that, CUPS allows me to set valid users+groups to each printer. So, what's there to lose?

Besides time, that is. It took me some more hair pulling to find out that Windows 7 is shipped by default (at least in the version I'm using) with the Internet Printing Server feature disabled. Duh. OK, enable it, and... Ta-da! It works with CUPS! Joy, happiness!

Only that... It works only when I use it with no authentication.

Windows has an open issue, with its corresponding hotfix even, because Win7 and 2008 fail to provide user credentials to print servers...

So, yes, I can provide site-wide printing capabilities, but I still cannot provide per-user or per-group authorization and accounting, which are needed here.

I cannot believe this issue cannot be solved under Windows 7, several years after it hit the market. Or am I just too blunt and cannot find an obvious solution?

Dear lazyweb, I did my homework. Please help me!

19 years of Debian

Submitted by gwolf on Thu, 08/16/2012 - 12:19

Happy 19th birthday, Debian!

The Debian project is 19 years old now. Following Francesca's invitation (and Raphaël's lead, and using Leandro's image, collaboratively as it always happens here), I will tell a bit of my memories: How I got to Debian.

I am a Debian user since ~2000, and a Debian Developer since April 2003. But, just as Raphaël's, my history must go somewhat further back in time.

In 1992, I got my first 1200bps modem, and almost immediately became an avid BBS user (what's that? Javier Matuk talks [in Spanish] about BBSes in his newspaper column back in 1994). By mid 1993 I started operating my own BBS, CatarSYS. One of the key points that defined CatarSYS is that my focus was large-scale communication. I started connecting to several BBS networks, allowing messages to be relayed to distant people, mainly in the USA and Spain, and getting some feeds that could be seen as the poor man's Usenet.

At some point during the year I kept CatarSYS going, I got connected through a strange set of gateways to pure gold: A UUCP feed! This means, during some months, I operated the first (free, hobbyist) service that offered its users a free Internet mail address in Mexico. Yes, it was completely different to what we are used to today. I tried to connect to my provider at least three times a week, but this meant less than one week turnover time for messages sent to people anywhere in the world! But, back to Debian: Via this UUCP feed, I also got some real Usenet newsgroups — Including several on the comp.os category. I remember reading about Linux back then, and learning some commands, but didn't really get hooked into it.

I was in Israel from July 1994 to June 1995, doing completely non-computer-related tasks. Came back in 1995, and due to my father being an academic, got dialup internet access at home. WOW, *real* Internet!

It didn't take me long to start downloading Linux information and floppy images. One failed after another. But before the end of the year, I found in a bookshop a book (that included a CD-ROM) called "Build your own web server with Linux". WOW again — Remember this was still 1995! I bought it, and shortly afterwards, I had a Slackware system (Linux kernel 1.0.9) running. That meant many sleepless nights full of joy and frustration (as getting hardware to work was cloe to impossible).

By 1996, I got (within one week) my two first real jobs: A systems administrator at a small ISP and a highschool teacher. At the ISP, I got a spare computer to play with Linux, as –of course– the Big Server was running with Windows NT 3.51. Poor little machine... By then I was already a part of the Mexican Linux User Group. This group had just printed a batch of Linux CDs — RedHat 4.0. This was the first release that really made me happy and allowed me to do good work. Together with a friend I took to work with us, Juan Pablo Romero, we installed over a weekend a full replacement for our buggy NT machine, in much cheaper hardware. Of course, Linux was nowhere near corporate-recognition, and our project remained a project, not touching the Windows machine.

Anyway... Several years passed, and I was happy with my RedHat choice. I won't mention the milestones and job changes, as it would get boring and leave the point completely aside. By the year 2000, I was quite more involved with the LUG, as well as with the computer security group in DGSCA-UNAM. I became also an OpenBSD user, and had got so hooked up in free software that I felt the need to collaborate: To be a little part of one of those Big Projects that had given me so much. But which one?

I have never been much of a programmer — Yes, I can solve my everyday needs and have fun with it, and sometimes a bit beyond that. I enjoy programming. But all of my projects have begun little… and stayed little. I wanted to join OpenBSD, as it was a community I really believed in, but given my skillset (and given a flame-prone, aggressive developer community), I lost motivation to do so.

By 2000, I had also lost faith in RedHat. I don't have the exact dates, so I might be some months off — But after RedHat's IPO, I felt a sharp change. Version 7.0 was really demotivating — It tried to offer a polished desktop experience, but was really buggy, unstable, and full of bad decisions. In Mexico, Pepe Neif had taken up the job of making a derivative distribution of RedHat (called LinuxPPP), pressing hundreds of CDs and making a teaching program I was part of several times. Talking with Pepe (who continued to release based on RedHat 6), he told me he was interested in switching over to become a Debian-based distribution, but the job of migrating his installed base made the project stall — LinuxPPP reached only version 6.4.

But I installed Debian in early 2000, and loved it. I started getting familiar with its social philosophy and foundation documents at the same time I started migrating my servers from RedHat to Debian — This must have been by Spring 2000, as I installed Potato while it was frozen but not yet stable.

By January 2002 I applied for NM. My process took a long time, as my AM got MIA when he had already approved me (but before sending the AM report), so basically I had to go through AM twice — And by April 16, 2003, I got accepted as a DD. Contrary to what is acceptable today, I requested the full process to be done before starting to maintain any packages, as I didn't want to bother people with package sponsorship requests, so my whole process was done evaluating packages I would eventually upload.

Since becoming a DD, my main involvement in the project has been in packaging groups (I was a pkg-perl founder and member for many years, and am currently working in the pkg-ruby-extras group). But, as I said, my main strength is not programming — So my main involvement in Debian has been more social than technical: I have been a DebConf organizer since 2005, a very interesting, stressing, rewarding and (for some months) time-demanding role, and since 2009 I am part of the keyring maintainence team, which is much easier workload, although carries important ramifications.

So, after 19 years of Debian, and after nine years of me being part of it, Debian is clearly my strongest link to the Free Software community, a project I have grown to love and whose way of being I share and enjoy studying and explaining. And it is a technically excellent product, and a great place to start and keep learning both about how every aspect and layer of an operating system works, and how human-to-human interaction works in such a diverse, almost impossible environment happens.

Congratulations, Debian!

No sense in caring for a hard disk

Submitted by gwolf on Fri, 08/27/2010 - 17:28

  1. Aug 27 06:00:15 lafa kernel: [7218302.960003] sd 1:0:0:0: [sdb]
  2. Add. Sense: No additional sense information
  3. Aug 27 06:00:15 lafa kernel: [7218302.960003] sd 1:0:0:0: [sdb]
  4. Sense Key : No Sense [current]

My hard drive does not currently make any additional sense.

( categories: )

How active are your local {Linux,Free Software} User Groups?

Submitted by gwolf on Wed, 02/04/2009 - 09:15

Ted T'so wonders about the LUGs over the world, seeking to answer a conversation he recently had at the Linux Foundation. He quotes a blog posting in Lenovo, “Local User Groups - gone the way of the dinosaur?”. I think this is an interesting point to gather input from others.

In Mexico City, we did have a strong LUG several years ago, holding not-very-regular-but-good-quality-wise meetings, roughly monthly, at Instituto de Ciencias Nucleares. I was active there ~1996-2001.
By 2001, however, the group stopped acting as one - Maybe one of the main factors is that we had a very strong, unquestionable group leader and cohesion factor (Miguel), who worked at Nucleares and regularly got said auditorium. Once Miguel left to form Ximian, the group slowly disgregated.

In one of the last LUG meetings, we started working towards the National Free Software Conference (CONSOL)... Nowadays, in Mexico (as a country) we have several conferences around the year, although I'd be hard-pressed to say whether any of them really fills the needs of a LUG (and my answer would probably be negative).

Now, there are several smaller groups that have popped up in the void left by the Mexico City LUG - Mainly LUGs local to universities or faculties... And yes, a 25-million-people city is too large to have a single, functional LUG - Just the geographical size of the thing is too daunting. Besides, we are too many people, even though few of us are contributing any real work. But I also recognize that a local *users* group should care about making the users better, before focusing on making the world a better place ;-)

Anyway... My intention with this post, besides writing what I see, is to ask to other people that read me (I know this blog is syndicated at Planeta Linux Mexico, maybe even people reading in other Latin American countries through Planeta EDUSOL) to write what they see at their local communities. To make this a bit more useful, please leave a comment (in English, if possible) at this blog, so this can be used as a summary for Ted's request as well.

( categories: )
Syndicate content