Author Archives: benfranske - Page 20

MIT Library Access to Music Project

In November 2001 MIT Student Keith Winstein had an idea to curb illegal file sharing on the MIT campus. His proposal to create a legal library of audio recordings and motion pictures online eventually became known as the Library Access to Music Project (LAMP). To avoid legal pitfalls the system would allow only one patron at a time to access an audio or video recording, just as if the items were actually being checked out of a physical library.

LAMP originally purchased 48,000 MP3 files from a Seattle company and planned to make a remotely controlled stream from those files accessible to students over the MIT cable TV network but in the Fall of 2003 it was announced that the company did not have rights to resell the music after all and the project voluntarily pulled the music while they regrouped. The final (and current) solution was to use a series of donated SteetFire Sound Labs RBX1600 controllers which allow ten consumer audio CD jukeboxes to be programmed over a web interface.

Students can sign in to the LAMP website and program up to thirty minutes worth of music which is subsequently played over one of sixteen MIT cable TV channels. By transmitting the audio in a non-digital format the students are able to use existing licensing agreements originally put in place for the campus radio stations which makes the entire system legal. Essentially this project allows students to program their own thirty minute “radio show” on one of sixteen channels via a web interface.

More information is available at the MIT LAMP web site.

WINS Name Resolution for Linux

Here’s what I had to do to get WINS name resolution working on my Debian based linux:


apt-get install winbind

Note that the winbind program is part of the samba package and I alrady had installed samba and configured it to point to my local WINS server.

I then had to edit /etc/nsswitch.conf adding the winbind and wins entries:


passwd: compat winbind
group: compat winbind
shadow: compat

hosts: files wins dns mdns
networks: files

protocols: db files
services: db files
ethers: db files
rpc: db files

netgroup: nis

I can now ping and connect to Windows machines by name.

When Good Engough Just Isn’t

Mark Gibbs a regular columnist in the trade paper NetworkWorld recently wrote an article lamenting the current lack of quality in consumer electronics. I encourage you to read his article “Digital Lifestyle, Part II“. Not only do I agree with his analysis of this disturbing trend in consumer electronics but I would suggest that it could be expanded to other parts of our life. Americans have become comfortable with mediocrity. I like to call this phenomena the Wal-Mart syndrome. In a continuous effort to get more for less, which any physicist will tell you breaks the first law of thermodynamics, we have put up with increasingly shoddy products. Think for a moment about the products of your youth. Food usually came in glass, paper or metal packaging and I bet that eight track player you bought as a teenager will still work if you pull it out of storage, I know mine does. Now think about the CD player you bought five years ago, does it still work? Assuming it wasn’t supplanted by superior technology chances are it stopped working. How about your TV? Do we even attempt to have these “electronic appliances” serviced anymore? No, the answer is that we simply go any buy a new one.

I first verbally expressed these concerns after coming back from a shopping trip with my parents last spring where they were looking at digital camcorders. My mother was wondering why the prices for the models I was encouraging them to look from the camera store are were so much higher than those at a big box retailer. At that point I realized that what has driven me to “professional” grade electronics is the steep drop off in the past 18 years. Most mass market consumer electronics are just not built and tested in the way they once were. While the decrease in price has made these electronics available to people who would otherwise not have access to them it’s still hard for me to say
that’s a fair trade for the consumer.

The reason I call this the Wal-Mart syndrome is that I believe that discount retailers, and especially Wal-Mart, and largely responsible for this decrease in quality. We have come to expect products to be far less inexpensive than they have been in the past and thanks to pressure from retailers manufacturers have done just that. Certainly, manufacturers have streamlined their practices in an effort to decrease cost but you can only take that so far. At some point the manufacturers started making trade offs in quality to meet retail pricing demands. I feel this is a shortsighted move and flies directly in the face of the reduce, reuse, recycle mantra we all heard in the 1980s. Still more dangerous is that this acceptances of mediocrity is creeping into other facets of our lives such as our educational system. As Gibbs points out in his article there is an entire generation that believes mediocrity is acceptable. What will happen when these youngsters become voters, managers and CEOs? Think about all the times when “good enough” just isn’t.

Calculating Subnets

If you do much network design you’re certainly familiar with the concept of subnetting, you probably even learned to do it by hand at one time. For those who are looking for an automated subnet calculation utility you can find a web-based one which requires no download or installation and supports subnets, supernets, CIDR and wildcards at subnet-calculator.com. The only real concern I have with this great utility is that the source code has not been provided so if the website goes offline you’re out of luck. In the long term timeframe I would like to write an open source version of this utility so anyone can run it on their intranet or another website. If anyone is interested in helping to write the code for this in PHP please contact me and I’ll move it up the list of priorities.

More public domain images

Following up on my earlier links to free NASA photography and NOAA photography is a link to the Wikipedia’s list of public domain image resources. This list contains sites where you can locate images of everything from animals to sports to art to flags. There are also links to other catalogs of public domain images and general collections of public domain imagery.

For Sale: Your Phone Records

Several recent news stories have been circulated explaining just how easy it is to get a copy of someones calling records. The mainstream source that seemed to break this was the Chicago Sun-Times which published a story on January 5, 2006 “Your phone records are for sale” giving some information about how many public agencies such as the FBI and Chicago Police Department are warning their employees about how easy it is to obtain phone records.

One of the more interesting reads is Paul McNamara’s January 23, 2006 article “How phone records are stolen” where he explains just how most of these companies are getting the records to begin with. In the end it usually comes down to some kind of social engineering of a phone company employee. Either they are recurited to supply this information or they are cajoled into giving it up to someone other than the account holder.

There’s been some recent movement in congress to block the sale of these phone records. It doesn’t take too much imagination to wonder if these congress people are more concerned with protecting their constituants or themselves. One wonders just what sort of interesting calls get made by these politicians. It would be quite the story indeed if a major newspaper were to use this easy access to phone records to expose one of these politians as a stooge for some special interest group or wealthy campaign contributor. For just this reason I would be surprised if congress did not move quickly to outlaw the sale of these records and enforce strict penalties on anyone involved with their sale.

Meta Analysis: Final Thoughts on CES/Grand Canyon 2006

Overall thoughts about CES 2006: I didn’t see too many revolutionary products at CES that are going to change our lives over the next year. This seems to jive with what the major publications were saying. Instead there is a steady and predictable march onward as manufacturers continue to improve their products by adding features and reducing size and cost. One of the trends I noticed is that car audio companies have finally become responsive to the digital media revolution and many are now offering stereos with USB plugs on the front that allow you to play your digital audio files directly from a standard USB thumb drive. Several stereos also offer the ability to plug in your iPod and control it through the stereo itself. This is one of the most disconcerting trends which is locking consumers into one specific technology (the iPod) by creating a proprietary interface. Another trend is the coming of age for Bluetooth. This was supposed to be hot technology several years ago but has been slow to be adopted. Manufacturers are finally understanding the benefits of this technology and it’s starting to show up in a lot more mobile devices. Car stereos have Bluetooth hands free hooks into your cell phone so when you accept a call the radio is muted and you can use the phone in a hands free mode. One of the more interesting applications was a standard cordless phone from Uniden which allows you to pair your cell phone with the base station and essentially use the phone as a second line from any of the cordless handsets. This means you only need to carry one phone around the house to receive all your calls. As an added bonus the cordless handsets also have Bluetooth technology allowing you to use a cordless headset with them. Unfortunately Uniden has no plans at this time to make this a feature in any of the less expensive phones.

Overall thoughts on the Grand Canyon: It was a little colder at the canyon than I might normally have chosen but the small crowds were tough to beat. In planning another trip I would probably shoot for Fall or Spring instead of Winter or Summer. The canyon itself is an immense natural wonder and I would love to have more time to explore it. I was a little disappointed by how easy the hike I selected was. I think I would really enjoying going back to the canyon and taking several days to hike several of the trails. Each trail has a unique personality and history which is fascinating to me and I would love to explore each of them. As a whole I did feel a bit underwhelmed by the Grand Canyon. It’s quite a different experience than a mountain and I didn’t feel that it was any more beautiful than many of the other natural wonders I’ve had a chance to see up close. For me it was much more interesting as a historical place than as a natural wonder. For that I much prefer the Grand Teton Mountains and Yellowstone. Still, I would welcome another trip to the area where I would further explore local history and enjoy some fantastic hiking.

Overall thought on the trip: What a great trip! Matt and I had a great time and I know that I enjoyed being able to put some of the skills I’ve learned on all our family road trips to good use. There’s something to be said for taking some time to explore the country and the interaction you get with the land on a car or train trip compared with jetting in and out seeing mostly an airport. Matt and I got along quite well, as he said we have no problem choosing restaurants on the road because we both like the same types of places. As for not Matt says he’s ready to spend some time at home before another vacation but I’m always ready for another adventure, who knows where I’ll end up next!

Hoover Dam, the Grand Canyon and East

Monday January 9, 2006 – We slept in just a little bit this morning before meeting checking out of the hotel and meeting Vinny at the Omelet House for breakfast. One of the off-strip ‘locals’ breakfast joints this restaurant definitely specialized in omelets with around thirty to choose from in addition to the requisite design your own. Following breakfast we headed out of town towards Boulder City. Boulder City is a medium sized town that sits in between Las Vegas and the Hoover Dam. Built during dam construction to house workers the city remains the gateway to the Lake Mead National Recreation area and our next stop, the Hoover Dam. Having seen several documentaries about the building of the Hoover Dam I knew about what to expect out of the dam itself but I was somewhat surprised by just how far it was from Boulder City to the dam. By the time you leave Boulder City the divided highway has turned into a two lane US Route which winds its way down to the dam. There is some construction going on in the area and it looks like they are attempting to improve the road to a divided highway but I don’t know what they’ll do at the dam itself which only has room for two lanes. We crossed the dam an parked on the Arizona side before walking back across. We did run into some security checkpoints on both sides of the dam where they just waved us through but were a little more inquisitive of people with trailers, RVs and trucks. They do offer tours where you can actually go down into the dam itself which would have been fun but we needed to keep moving to get to the Grand Canyon around dusk. After a few photos at the dam and a walk across it we continued on our way. The route along I-40 in western Arizona is nearly identical to the historic US Route 66 and along the way we found several reminders of this including a state highway 66 and several gas stations with references to the famous US Route. Just before dusk we turned north from the interstate and began our trek to the south rim of the Grand Canyon. Before you actually reach the canyon you go through some additional national forest land and by the time we reached the Grand Canyon park boundary it had gotten quite dark. I guess because of (relatively) low car volumes in the winter they did not charge a vehicle admission fee or even have the entrance gates staffed. Once we got to the rim we made our way to the El Tovar hotel which is the oldest existing hotel at the canyon. Here we checked into our room located next door in Kachina lodge which was built in the 1960s or 70s and has no front desk. For dinner we walked down the road a bit and ate at the Bright Angel Lodge Restaurant even going so far as to live it up a bit and get some of the delicious chocolate cake. Even through the darkness I was able to see the massive depth of the canyon and decided it would not be a good idea to take a sleepwalk because of the “big hole in the ground” about 40 feet from our room.

Tuesday January 10, 2006 – With morning came a beautiful view of the canyon from our window and the plan for the day was to do a bit of hiking and exploring in the park. Knowing that a good hike starts out with some energy our first stop was at the white linen El Tovar Restaurant where I had the triple pancakes (wheat, buttermilk and blue cornmeal) which were fantastic and Matt had the waffle which he raved about for the rest of the trip. I’m also told that the special Fred Harvey coffee served at the El Tovar is the best around. After breakfast we drove out to the South Kaibib trailhead at Yaki Point. During the summer car travel and parking is severely restricted in the park due to high volumes of traffic. I believe the eventual goal is to completely eliminate car traffic in favor of mass transit but for the time being one of the advantages of going in the off season is being able to drive to all the viewpoints and trailheads. I was split between hiking down the traditional Bright Angel trail or the (supposedly) more panoramic and steeper South Kaibob trail. Knowing this was to be a day hike only I had no illusions of reaching the canyon bottom and returning to the top, in fact signs all around warn of attempting such a feat. The South Kaibib trail has an interesting history surrounding it (as do many of the trails in the canyon) but I’ll leave you to research that yourself. The short of it is that the trail is generally considered more strenuous than Bright Angel but offers better views of the canyon. Thinking we were up for it I proposed a hike down to Cedar Ridge which is about 1.5 miles and 900 feet of elevation change. We took our time on the way down taking in the views and a few photos. Once we reached Cedar Ridge I had some water and crackers and while Matt took a little break I took some photos. Expecting it to take up to three hours to ascend (you’re supposed to plan for twice as long to ascend) I suggested we start so we’d still have some time to explore the rest of the park before dusk. In the end it took us less time to ascend (about and hour) and I was a bit disappointed at how easy it was even for the casual hiker such as myself. I found the day hike I did in the Canadian Rockies this summer to be much more strenuous. When I return to the canyon I’ll certainly plan a longer and more challenging hike because that’s just part of the fun and excitement. On the way back towards Grand Canyon Village we stopped at Yaki Point to take in some of the scenery. Most of the visitors to the canyon never walk more than fifty yards from a parking area which means viewing only from the rim at points such as this. While the views are spectacular they are nothing compared to making an actual descent into the canyon. Continuing west through the village we took a driving tour of the rim out to Hermits Rest. Along the way we stopped and checked out a few of the viewpoints including one with a descriptions of some of the mining that went on in the canyon including Plutonium mining at Orphan Mine that continued will into the 1960s. All of these viewpoints and trails have some amazing history behind them and I would have loved to spend more time looking into that than I did. We also got to see some of our first fauna in the park which was evident by the small traffic jam caused on the road. Once we got to Hermits Rest and poked around a bit we returned to the village and looked around the village train depot which is one of the last three remaining log train depots in the United States. Matt decided he was going to take a rest until dinner while I returned to Hopi Point which is supposed to be one of the better places to see the sunset. I photographed the sunset with about a dozen other people. One thing you notice in the desert is that from sundown to sunup the temperature is quite a bit cooler than it is during the day, something I noticed again the next morning. We hoped to have dinner in the Bright Angel Arizona Room which I’m told is a better spot for dinner than El Tovar but a downside of coming in the off-season is that there are some services that are scaled back. Because of this and the fact that we had dinner in the Bright Angel Restaurant the evening before we walked back over to the El Tovar Restaurant where we each had a New York Strip Steak and a delicious cherry brownie for dessert, feeling we had earned such an indulgence with our hike into the canyon. Before retiring for the evening I copied photos from my Canon Rebel XT camera to my laptop, sorted the photos I had taken so far and did some updating of this travel journal. I turned in a bit earlier than I had been so that I would be able to get up and see the sunrise which is also supposed to be a fantastic view.

Wednesday January 11, 2006 – Waking about an hour and a half before sunrise I headed out to the east on the Desert View Drive. Another benefit of coming in the winter is that sunrise is much later than during the summer when I would have had to get up far too early for my liking. Along the way to Desert View I saw a lot of fauna near the road which seems much more active near dawn and dusk. I arrived at Desert View just before sunrise and was the only person there, with the exception of one National Parks worker, until after the sunrise was mostly complete. While not especially colorful this day the sunrise was beautiful as it rose along the canyon rim. Because the canyon cools down so much during the night I was quite frigid even in my winter coat, hat and gloves from Minnesota so I didn’t stick around very long after sunrise. On the way back to the hotel I stopped to check a few of the viewpoints east of the village. One of the most interesting was Grandview point which was home of the first hotel on the rim and an early mining operation. Once I got back to the room I woke Matt up, did some more computer work and took my things down to the car so we could get checked out. On the way out of town we stopped for breakfast at the Yavapai Lodge cafeteria but had just missed breakfast so we had a small lunch instead. Leaving the park we drove out of the east entrance instead of the south entrance where we entered. The land quickly dropped off as we continued towards the intersection of the Colorado, Utah, Arizona and Mew Mexico borders at Four Corners. Along the way we got to see some of the most beautifully red rock contrasted with some of the poorest living conditions and towns in the United States. We stopped at the four corners monument and took some pictures along with GPS coordinates. The actual junction is on an Indian reservation and the locals charge per person to access the monument so we wanted to make sure we were actually at the junction. After leaving we continued northeast into Colorado. Stuck in between the US interstates I knew we had a hard drive ahead as we drove North towards Grand Junction, Colorado. I drove as far as Durango, CO, where we had dinner, leaving Matt the real challenge of driving through the mountains on a two lane US route. Let me say there’s a stark contrast between crossing the mountains on the wide and graded interstate with its system of efficient routes and tunnels and the old US route system we were on. With many sections and sharp turns limited to 15 miles an hour it takes a long time just to go a short distance. Thank goodness we had good weather conditions and a full moon or it would have taken even longer. While Matt drove I was able to take in some of the scenery which is much nicer than what you find along the interstate. Here the road feels like a part of the mountain as it winds up and down through passes instead of a man made object just passing through. Late in the evening we arrived in Grand Junction and were even able to find a hotel with free internet access so I was able to post some pictures and travel log entries to my website where people could enjoy them before the trip was even over.

Thursday January 12, 2006 – When we left Grand Junction this morning there was just a little bit of frost on the car but once we got up into the mountains we found some real snow. I did encounter some snow when driving through the mountains on the way out but nothing like the snow we saw today. As I drove up I-70 towards the continental divide visibility got increasingly worse and at some points it was even difficult to make out the tail lights of the car in front of us. Needless to say I was thankful to not have encountered snow like this on the US highways last night. Once we got East of the Eisenhower tunnel things improved markedly, it seems the snow has stayed mostly west of there. Once again we found ourselves in the brown land of Denver. As we continued East the only weather phenomena we encountered were high winds in the flat plains of eastern Colorado and Nebraska. We stopped in North Platte, NE for dinner and ate at the regional Italian buffet chain Valentino’s. If you have ever been to the west central part of the country I would be surprised if you hadn’t stopped or at least seen one of these omnipresent restaurants. In any event after a filling dinner Matt took the helm and drove us just past Omaha, NE to Council Bluffs, IA. Pulling in just before midnight we found a room at the Motel 6 which was definitely the poorest accommodations on the trip but the price and location were right.

Friday January 13, 2006 – Today I had an easy drive from Council Bluffs, IA back to Minneapolis where we arrived just after 5:00pm right during the height of rush hour. I took Matt back to his apartment in St. Paul and slowly made my way home through the traffic. All told our twelve day trip took us over 3800 miles through eight states. Our longest day of driving was our first where we drove over 850 miles from Minneapolis, MN to Fort Morgan, CO that was quite a haul! Matt thinks I must have a secret life as an over the road trucker.

CAPTCHA for commenting

I’m working on testing a new plugin for b2evolution with one of the developers which requires entering a CAPTCHA code when posting a comment to an article with the goal of reducing needless comment spam. Please give it a try and leave any comments about the plugin functionality here. If you are unable to comment on an aricle for some reason please send an email describing the problem to ben@franske.com

Spam Slide

I’ve been hit with an alarming increase in comment spam over the past few days. I’m working on rewriting a captcha class to help stem the tide and until I get that finished I’m going to disable comments on the site.