Byzantium is a live Linux distribution that delivers easy-to-use, secure, and robust mesh networking
via Project Byzantium.
Unlike most mesh implementations, a Byzantium Mesh requires no specialized equipment that may not be easy to get during an emergency, just an x86 computer with at least one 802.11 a/b/g/n wireless interface.
Tomlinson’s eyes fell on @, poised above “P” on his Model 33 teletype. “I was mostly looking for a symbol that wasn’t used much,” he told Smithsonian. “And there weren’t a lot of options—an exclamation point or a comma. I could have used an equal sign, but that wouldn’t have made much sense.” Tomlinson chose @—“probably saving it from going the way of the ‘cent’ sign on computer keyboards,” he says. Using his naming system, he sent himself an e-mail, which traveled from one teletype in his room, through Arpanet, and back to a different teletype in his room.
via The Accidental History of the @ Symbol | Science & Nature | Smithsonian Magazine.
The bang (!) was also used back then for email.
TDLS is based on the IEEE 802.11z standard, and the automatic link configuration is done in a couple of steps. The discovery process begins when one device sends a discovery request to another device, via the network they are connected to. If the target device is also TDLS compliant, then it sends a response directly to the initiator, providing information on its capabilities, including supported rates and channels.
via Wi-Fi Alliance starts certifying tunnel technology for better wireless performance – Computerworld.
Besides streaming video and audio, TDLS can also be used to improve the performance of wireless data back-up, printing and file transfers.
The only thing my boss said to me was, ‘Chip, the only thing that has to work is the cell phones.’”
That’s why stadiums across the country are partnering with cellular carriers to build Distributed Antenna Systems, or DAS. These are essentially a bunch of antennas spread throughout a building to make sure phones don’t lose their connections to the cellular network when fans walk in the door. But it’s not just phone calls and text messages filling up wireless networks during games. Fans are streaming video, whether from third-party sources or apps created by the home teams to provide replays, different camera angles, or action happening in other cities. Teams are concluding that cellular just isn’t enough, and are thus building WiFi networks to offload traffic from cellular and provide connections to devices that are WiFi-only.
via Why your smart device can’t get WiFi in the home team’s stadium | Ars Technica.
Distributed Antenna Systems connect to the service provider’s network either with a bi-directional amplifier, which uses an outdoor antenna to bring the cellular signal into the building, or a base transceiver station, which is installed inside and is the same type of radio used at cell sites, as explained by the Steel In The Air cellular consultancy. Signals are then distributed throughout the facility with a series of hubs, cables, and antennas.
On the surface, ants and the Internet don’t seem to have much in common. But two Stanford researchers have discovered that a species of harvester ants determine how many foragers to send out of the nest in much the same way that Internet protocols discover how much bandwidth is available for the transfer of data. The researchers are calling it the “anternet.”
Kymeta is working on a wide range of innovative and highly competitive products for a broad spectrum of applications. Potential applications and target specifications can be found on each product’s page.
via Products | Kymeta.
From: Metamaterials Surface Antenna Technology
mTenna utilizes new reconfigurable antenna technology: Metamaterials Surface Antenna Technology (MSA-T). MSA-T enables wide-angle, all-electronic beam steering from a proprietary, PCB-like surface that can be manufactured using a mature and affordable lithography manufacturing infrastructure.
Instead, Microsoft recommended that IT administrators add PEAP (Protected Extensible Authentication Protocol) to secure passwords for VPN sessions. A support document described how to configure servers and clients for PEAP.
via Microsoft warns of ‘man-in-the-middle’ VPN password hack – Computerworld.
Make 2.4GHz parabolic mesh dishes from cheap but sturdy Chinese cookware scoops & a USB WiFi adaptor! The largest so called “WIFRY”,”WOKFI” or “WOKTENNA” (12″= 300mm diam) shows 12-15dB gain (enough for a LOS range extension to 3-5km),costs ~US$5 & comes with a user friendly bamboo handle that suits WLAN fieldwork- if you can handle the curious stares! Neater boutique versions may better appeal indoors. NB-unless you use more powerful USB adapters (such as ALFA & Senao offerings mentioned below),weak USB adapter output power may mean you now hear more stronger APs than you can link back to …
List of TCP and UDP port numbers – Wikipedia, the free encyclopedia.
This site was also a good reference when I tried to find out what common services used port 9000.
CCN directly routes and delivers named pieces of content at the packet level of the network, enabling automatic and application-neutral caching in memory wherever it’s located in the network. The result? Efficient and effective delivery of content wherever and whenever it is needed. Since the architecture enables these caching effects as an automatic side effect of packet delivery, memory can be used without building expensive application-level caching services.
