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  • What does the UNIX file system do?

    Unix, Linux, Windows and other operating systems and the world wide web all support file systems with the familiar path file names  like “/home/snowden/travel/boardingpass.pdf” or “/system/passwords/secret/dontread.txt” although sometimes with different separator characters between the individual “flat” file names. For example, Windows uses “\”. As long as we know how to separate flat file names in…

    October 1, 2015
  • Primitive recursion over words

        From: @book{Peter:1982:RFC:539249, author = {Peter, Roezsa}, title = {Recursive Functions in Computer Theory}, year = {1982}, isbn = {0470271957}, publisher = {Halsted Press}, address = {New York, NY, USA}, }

    September 29, 2015
  • Smart and dumb clients and the “so-called” Best Master Clock Algorithm in PTP IEEE 1588

    The Best Master Clock (BMC) algorithm is a key part and key weakness of the PTP standard. The proposed enterprise profile for PTP calls it  “the so-called ‘best master clock’” algorithm because it doesn’t actually pick the best master clock in an enterprise or telco environment. The BMC  requires that each clock advertise a level…

    September 17, 2015
  • Update of UNIX filesystem paper

    download the paper  

    September 9, 2015
  • German banking

    Germany has a complex banking system that provides a lot of support for SME manufacturing. The main strength of German economy is the so-called ‘Mittelstand’, a dense fabric of SMEs that manage to export high-quality manufactured products. In France, policymakers from all parties are obsessed with building a ‘French Mittelstand’. Economists are repeatedly asked to…

    August 27, 2015
  • Right to private jet ski use while collecting disability

    New York authorities said the warrants led to the indictments of firefighters, police officers, and civil servants on disability fraud charges. The Facebook data, which included user photos and videos, showed employees who claimed they were disabled performing a variety of activities, including fishing, martial arts, and even jet ski riding. – Ars Technica

    July 28, 2015
  • The OPM break-in was super-horrific

    Hackers likely stole EVERY SINGLE background investigation form completed by OPM since 2000. Every single one. — Damian Paletta (@damianpaletta) July 9, 2015

    July 10, 2015
  • Ikea and RedHat

    This is state of the art for systems software now – which is not all that impressive. Glantz explained that Ikea has more than 3,500 Red Hat Enterprise Linux (RHEL) servers deployed in Sweden and around the world. With Shellshock, every single one of those servers needed to be patched and updated to limit the risk…

    July 7, 2015
  • Gilbert and Sullivan’s innovative business model

    From the Financial Times: (and you should buy a subscription) Piracy is a problem as old as the music industry itself. In Victorian times, it was illicitly copied sheet music that was the avowed enemy of the artist, and the operetta team Gilbert and Sullivan paid toughs to go round London pubs smashing up pianos…

    March 23, 2015
  • Space-X patents

    Anderson: So what have all your creative people come up with, then? What’s different in your basic technology versus 50 years ago? Musk: I can’t tell you much. We have essentially no patents in SpaceX. Our primary long-term competition is in China—if we published patents, it would be farcical, because the Chinese would just use…

    March 13, 2015
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keeping simple

    • Groundbreaking treatise on state machines, paxos, specification
    • The RTLinux patent 5,995,745
    • Notes on Security and Common Criteria
    • Download code

keeping simple

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