Antenna to the East
My old friend Stephen Lewis, a native of Manhattan's Lower East Side and a part-time resident of what he calls "The People's Republic of Brooklyn", has long made his primary home in Sofia, Bulgaria. A citizen of both the US and Holland, Steve is veteran of Europe's telecom industry (also a two-time Fulbright Scholar). Lately he has been interested in applying in Bulgaria what neighborhood wireless folks have been learning in New York City. So he eagerly joined my Wi-Fi explorations through his old neighborhood and a number of meetings as well. Here's his report. --Doc Searls
Wi-Fi is an extremely liberating technology. With it I now can travel to work in, say, Paris or Amsterdam without stuffing my bag with cables, phone jacks and alligator clips. And I can do this without paying year-in/year-out for rarely used local dial-up accounts or low-speed GSM mobile data connections at over-priced, unregulated international roaming rates.
But, for me, Bulgaria is the challenge. From here in New York, I wanted to examine the gains Wi-Fi could offer to the infrastructure, economy and people of the country that has been my adopted home for more than a decade. Over the last month, I have been shaping a number of proposals for public service initiatives to serve the town of Sofia and neglected villages of Bulgaria's country-side.
Sofia is a good candidate for Wi-Fi deployment. It is home to several universities and some of Europe's most technically sophisticated young people. Few westerners realize that, prior to the implosion of communism in 1989, Bulgaria had been well on its way to becoming the Soviet Bloc's own Silicon Valley. In the 1990s, Bulgaria's underemployed young hackers kept their skills in shape by developing and exporting a steady flow of computer viruses. Today, Bulgaria enjoys a substantial software development community, Linux included.
In Sofia and other cities, Bulgaria's leading ISPs currently offer a form of wireless broadband distributed from television towers or other broadcasting points to Wi-Fi access points on users' premises. At least one Sofia-based university has reportedly issued an RFP for a turnkey Wi-Fi installation project.
Public access Wi-Fi like the New York model does not yet exist in Sofia nor anywhere else in Bulgaria, nor is there an active Wi-Fi alliance. It is my aim to gain EU or US sponsorship to precipitate both.
The obvious starting point for wireless networking in Sofia is free access in the public parks, squares and outdoor café sites that dot downtown Sofia, as in New York, and/or on a line through the center of the city using fiber from Sofia's partially constructed metro system, as in Paris. This would be a boon for the western business people and bureaucrats who are flocking to Sofia following Bulgaria's approval for NATO membership and EU accession. It would add substantially to the city's infrastructure, facilitate Sofia's role as a regional business and service center and boost the attractiveness of the its downtown. Still, it would not directly benefit most Bulgarian computer users, few of whom can afford serviceable laptops.
Like laptops, Internet access is still an expensive luxury in Bulgaria, a country where mid-range monthly salaries are several hundred dollars at best and far less for most people. Phone charges are frightening. The crash program to digitize Sofia's phone service to conform with directives for EU accession brought not only better quality connections but also a change in local tariffs from flat-fee per call to time-based charges. People who used to spend hours on-line now log off quickly. As for cable access, basic television services cost six or seven dollars a month, with surcharges of as much as $25 a month for Internet access.
Therefore, my second goal is to identify residential or business incubation areas with high desktop computer penetration, high need for broadband access and low aggregate ability to pay for dial-up or cable access. First on the list is Sofia's densely populated Student City, a chain of overcrowded high-rises built in the early 1970s, following Paris' lead, to isolate potentially rebellious student populations from the center of the city. Here, bandwidth could be bought wholesale from cable suppliers and transmitted to students free of charge or at a token cost using donor-subsidized hardware.
My third goal is to look beyond Sofia to deploy Wi-Fi access as a regional development tool. Apparently, some years ago, the US Peace Corps brought access to a former mining town high in the Rodope mountains, the natural boundary between Bulgaria and Greece. This summer I will look at the outcome of this project and identify towns and villages where a Wi-Fi "last mile" can serve people and boost the economy.
I was impressed by the Linux-based solutions put together by Terry Schmidt (creator of Linux Pebble) and others involved in the NYCwireless effort. I expect local Linux experts will jump in and help with all three parts of this project in Bulgaria. In fact, I doubt it could happen without them.
Practical Task Scheduling Deployment
July 20, 2016 12:00 pm CDT
One of the best things about the UNIX environment (aside from being stable and efficient) is the vast array of software tools available to help you do your job. Traditionally, a UNIX tool does only one thing, but does that one thing very well. For example, grep is very easy to use and can search vast amounts of data quickly. The find tool can find a particular file or files based on all kinds of criteria. It's pretty easy to string these tools together to build even more powerful tools, such as a tool that finds all of the .log files in the /home directory and searches each one for a particular entry. This erector-set mentality allows UNIX system administrators to seem to always have the right tool for the job.
Cron traditionally has been considered another such a tool for job scheduling, but is it enough? This webinar considers that very question. The first part builds on a previous Geek Guide, Beyond Cron, and briefly describes how to know when it might be time to consider upgrading your job scheduling infrastructure. The second part presents an actual planning and implementation framework.
Join Linux Journal's Mike Diehl and Pat Cameron of Help Systems.
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With all the industry talk about the benefits of Linux on Power and all the performance advantages offered by its open architecture, you may be considering a move in that direction. If you are thinking about analytics, big data and cloud computing, you would be right to evaluate Power. The idea of using commodity x86 hardware and replacing it every three years is an outdated cost model. It doesn’t consider the total cost of ownership, and it doesn’t consider the advantage of real processing power, high-availability and multithreading like a demon.
This ebook takes a look at some of the practical applications of the Linux on Power platform and ways you might bring all the performance power of this open architecture to bear for your organization. There are no smoke and mirrors here—just hard, cold, empirical evidence provided by independent sources. I also consider some innovative ways Linux on Power will be used in the future.Get the Guide