General networking
Data network connectivity developments, networking business news, and related computing items.

Ken Novak's Weblog


daily link  Thursday, March 24, 2005


Ourmedia.org: "We provide free storage and free bandwidth for your videos, audio files, photos, text or software. Forever. No catches."  Appears to build on the Internet Archive.  9:23:44 AM  permalink  

Podcasters get sponsors: Warner Brothers "will sponsor podcasts of the Eric Rice Show and provide exclusive audio content from one of its bands.  The Eric Rice Show, which is produced by Rice and three of his colleagues, features audio musings on entertainment, technology, and culture. .. The agreement calls for the label to give Rice exclusive interviews, banter and impromptu jams featuring "The Used," which were recorded on the band's current tour... RSS marketing firm Pheedo, which brokered the dea [said]. "It's basically paid placement. The music becomes the advertisement. The way I sold both these sponsorships is [that they're] enhancing what someone's already doing and adding value to it, as opposed to the interruption mode" [of paid ads]. ..

In a separate sponsorship facilitated by Pheedo, software provider Citrix has paid for a product placement on blogger Chris Pirillo's podcast. Listeners will be encouraged to register for a trial of the sponsor's GoToMeeting platform using a unique code announced specific to that podcast. That sponsorship will break on March 31."  [Thanks John!]

  9:22:45 AM  permalink  


daily link  Sunday, March 20, 2005


Solar SeV Finetex Shell: Updated geek jacket, now with solar charger:  "The Solar SCOTTEVEST (SeV) combines the benefits of our signature jacket and removable solar panels. The solar panels enable you to recharge most USB compatible devices on the go, either while wearing the jacket or with the panels removed. When attached, the solar panels compliment the jacketís design. The solar panels charge a small battery - about the size of a deck of cards. The battery powers your device almost immediately after the solar panels are exposed to sunlight. Once the battery is fully charged, the panels can be removed and your portable electronic device can tap into the stored power.   Typical charge times in direct sunlight range from 2-3 hours, but direct sunlight is not required."  Geek cargo pants also available, teflon coated (but no solar panel...).  10:55:10 PM  permalink  


daily link  Sunday, March 13, 2005


Opentopia webcams: 1130 webcams available, at random or by location, with an option for animation of a few recent shots.  10:31:01 PM  permalink  


daily link  Friday, March 11, 2005


Powerline connectivity: "Three Japanese consumer electronics giants have created a new technology to transport Internet and media signals around the home via the electricity network. .. Sony, Mitsubishi and Matsushita-owned Panasonic have set up the SECA powerline alliance.   They have developed a system to transfer 170 Megabits per second of data through the power lines of a home, Panasonic researcher Ingo Chmielewski told journalists at the electronics trade fair CeBIT"  1:06:48 AM  permalink  


daily link  Saturday, March 05, 2005


Fingerprinting PCs wherever they connect to the Net: ". A doctoral student at the University of California has conclusively fingerprinted computer hardware remotely, allowing it to be tracked wherever it is on the Internet.  In a paper on his research, primary author and Ph.D. student Tadayoshi Kohno said: "There are now a number of powerful techniques for remote operating system fingerprinting, that is, remotely determining the operating systems of devices on the Internet. We push this idea further and introduce the notion of remote physical device fingerprinting ... without the fingerprinted device's known cooperation."

The potential applications for Kohno's technique are impressive. For example, "tracking, with some probability, a physical device as it connects to the Internet from different access points, counting the number of devices behind a NAT even when the devices use constant or random IP identifications, remotely probing a block of addresses to determine if the addresses correspond to virtual hosts (for example, as part of a virtual honeynet), and unanonymising anonymised network traces. .. One could also use our techniques to help track laptops as they move, perhaps as part of a Carnivore-like project [or to] obtain information about whether two devices on the Internet, possibly shifted in time or IP addresses, are actually the same physical device."

The technique works by "exploiting small, microscopic deviations in device hardware: clock skews." In practice, Kohno's paper says, his techniques "exploit the fact that most modern TCP stacks implement the TCP timestamps option from RFC 1323 whereby, for performance purposes, each party in a TCP flow includes information about its perception of time in each outgoing packet. A fingerprinter can use the information contained within the TCP headers to estimate a device's clock skew and thereby fingerprint a physical device. .. Our techniques report consistent measurements when the measurer is thousands of miles, multiple hops, and tens of milliseconds away from the fingerprinted device, and when the fingerprinted device is connected to the Internet from different locations and via different access technologies. Further, one can apply our passive and semi-passive techniques when the fingerprinted device is behind a NAT or firewall. .. For all our methods, we stress that the fingerprinter does not require any modification to or cooperation from the fingerprintee." Kohno and his team tested their techniques on many operating systems, including Windows XP and 2000, Mac OS X Panther, Red Hat and Debian Linux, FreeBSD, OpenBSD and even Windows for Pocket PCs 2002. ..

Although the paper says that "It has long been known that seemingly identical computers can have disparate clock skews," it goes on to conclude that "the main advantage of our techniques ... is that our technique can be mountable by adversaries thousands of miles and multiple hops away." " [via Mitch Kapor]

  11:30:33 AM  permalink  

Copyright 2005 © Ken Novak.
Last update: 11/24/2005; 11:36:05 PM.
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