Friday, September 28, 2012

Topology in Network Design | Sedulity Groups

In computer networking, topology refers to the layout of connected devices. Network topologies are categorized into the following basic types:
Bus, Star, Tree, Ring, Mesh & More complex networks can be built as hybrids of two or more of the above basic topologies.

Bus Topology
Bus network uses a common backbone to connect all devices. The backbone functions as a shared communication medium that devices attach into with an interface connector. A device wanting to communicate with another device on the network sends a broadcast message onto the wire that all other devices see, but only the intended recipient actually accepts and processes the message.

Thursday, September 27, 2012

Tuesday, September 25, 2012

Pirate Bay co-founder arrested on hacking charges | Sedulity Groups

A co-founder of BitTorrent tracker The Pirate Bay has been arrested in Sweden over allegations he was involved in hacking a contractor to the country's tax authority.
Sweden's public prosecutions authority suspected Gottfrid Svartholm to be one of three involved in continued breaches of a core database held by contractor Logica over a two-year period.
The hacks, which began in 2010 and continued until April this year, reportedly involved accessing the database containing civic registration numbers for people with protected identities, with thousands of such numbers copied by the three over the breach period.