Science Etcetera, Saturnday 20090228

Posted on 28th February 2009 by ideonexus in Science Etcetera
  • Sorry Titan, next stop Europa.

  • NASA and ESA plan to send two orbiters to study Jupiter in 2020

    NASA and ESA plan to send
    two orbiters to study Jupiter in 2020

    Credit: NASA/JPL
  • Tropical forests remove 4.8 billion tonnes of CO2 a year, so maybe we should preserve them.
  • Galaxy Zoo 2 now online.
  • We should assist species in migrating to warmer climates as they change.
  • Arctic sea ice didn’t vanish last year as predicted due to sensor drift underestimating sea ice for the NSIDC.

  • Daily total Arctic sea ice extent between 1 December 2008 and 12 February 2009 for Special Sensor Microwave/Imager SSM/I compared to the similar NASA Earth Observing System Advanced Microwave Scanning Radiometer (EOS AMSR-E) sensor.

    Arctic sea ice extent between
    1 December 2008 and 12 February 2009

    Credit: National Snow and Ice Data Center
  • Humans’ stubby toes are good for running.
  • World’s first garbage-powered garbage truck.
  • Make sure your loved ones have passwords to your accounts so they can handle your data after you die; otherwise, it can take years for them to obtain access.
  • The Dog and The Skull – Optical Illusion


  • Flash Fiction: Dreams of Conceptua

    Posted on 27th February 2009 by ideonexus in Pure Speculation

    Is up at 365tomorrows. Go read it now. : )

    Science Etcetera, Venusday 20090227

    Posted on 27th February 2009 by ideonexus in Science Etcetera
  • Beautiful slideshow presentation of searching for extremophiles in Russia.

  • Extremophiles in Russia

    Extremophiles in Russia
  • The Leo Ring is a cloud of gas orbiting two galaxies in the constellation Leo, devoid of dark matter and heavy elements, but still producing stars.
  • Photos of interesting species found at both poles.
  • Are we programmed for distraction?
  • Evolving the Mona Lisa.

  • Evolving Mona Lisa

    Evolving Mona Lisa
  • An apple a day keeps the breast cancer away?
  • MAKE Magazine has coverage of science kits for kids like TEDCO Toys, My first lab, Kristal, and ScienceWiz.
  • Siftables and Sixth Sense are new methods of interfacing with computers that could easily make keyboards obsolete (video demos at the link).
  • The dropping ball illusion


  • This is What Happens When You Leave a Port Open on a DHS System

    Posted on 26th February 2009 by ideonexus in Geeking Out - Tags:

    I know from previous experience that I need to be careful about what I put in the root directory on my development box at work, but I recently discovered it’s probably best not to have any open ports on my box at all, when a coworker showed me this in my Apache server log:


    Retina Network Security Scanner

    Retina Network Security Scanner

    Apparently, this is what a server log looks like after being audited by a Retina Network Security Scanner, software that scans the network for open ports and, when it finds one, checks for every possible kind of exploit there is against it:


    Sample of Exploits Checked

    Sample of Exploits Checked

    There are thousands of lines of log entries for each scan, and with these regular scans extending back to October, my Apache log had exploded to nearly 300 megs. Somewhat inconvenient. Great thing about working in a team IT environment, I got to learn about a command-line tool called nslookup, which I ran:


    nslookup

    nslookup

    So it’s a CG Intranet thing. The “ads” probably stands for “Automated (Distribution / Deployment) Service.” Nice to know it’s out there, keeping USCG computers secure.

    Since this was a local development box, I decided to follow my colleague, and restrict my Apache server to access from just my own box with this modification to the config file (I’m using port 81 so as not to conflict with IIS):

    #Listen 81
    Listen localhost:81

    Now the only errors I get are the PICNIC kind.

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