Graphical Network Simulator - GNS3. Commotion, le projet d'un Internet hors de tout contrôle. Hackers plan space satellites to combat censorship. 4 January 2012Last updated at 06:52 ET By David Meyer Technology reporter 50 years after Russia's first piloted mission, hackers plan to send their own people beyond orbit Computer hackers plan to take the internet beyond the reach of censors by putting their own communication satellites into orbit.
The scheme was outlined at the Chaos Communication Congress in Berlin. The project's organisers said the Hackerspace Global Grid will also involve developing a grid of ground stations to track and communicate with the satellites. Longer term they hope to help put an amateur astronaut on the moon. Hobbyists have already put a few small satellites into orbit - usually only for brief periods of time - but tracking the devices has proved difficult for low-budget projects. The hacker activist Nick Farr first put out calls for people to contribute to the project in August.
"The first goal is an uncensorable internet in space. Beyond balloons Continue reading the main story “Start Quote Ground network. Hackerspace Global Grid [shackspace wiki] This work by hackerspace global grid is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported License . As proposed on CCCamp11 we need our own infrastructure and space program. HGG's aim is to develop a modular antenna grid for satellite communication. The hacker community needs a fallback infrastructure in case of natural and economic disaster to stay connected.
Design and build a modular terrestrial base-station for satellite communication. Gain insight into the nature, protocols and security features of satellite <> earth communication. There's a HGG Hackathon at shackspace every Saturday and Sunday afternoon. Research existing systems to receive satellite communications (off-the-shelf dishes, etc) Research existing software to decode satellite communications Setup infrastructure to record and store received signals for later analysis There's also a list of Open Tasks if you're interested in joining!
General Timing & Position GPS most current sollution. Mesh networking. Illustration of a mesh network. A mesh network can be designed using a flooding technique or a routing technique. When using a routing technique, the message is propagated along a path, by hopping from node to node until the destination is reached. To ensure all its paths' availability, a routing network must allow for continuous connections and reconfiguration around broken or blocked paths, using self-healing algorithms. A mesh network whose nodes are all connected to each other is a fully connected network. The self-healing capability enables a routing based network to operate when one node breaks down or a connection goes bad. Advantages[edit] Point-to-point line configuration makes identification and isolation of faults easy.Messages travel through a dedicated line, directly to the intended recipient; privacy and security are thus enhanced.Should a fault occur in a given link, only those communications between that specific pair of devices sharing the link will be affected.
Wireless mesh network. Diagram showing a possible configuration for a wireless mesh network, connected upstream via a VSAT link (click to enlarge) History[edit] Network structures[edit] Architecture[edit] Wireless mesh architecture is a first step towards providing cost effective and dynamic high-bandwidth networks over a specific coverage area. Wireless mesh architectures infrastructure is, in effect, a router network minus the cabling between nodes. It's built of peer radio devices that don't have to be cabled to a wired port like traditional WLAN access points (AP) do. Mesh architecture sustains signal strength by breaking long distances into a series of shorter hops. Wireless mesh networks have a relatively stable topology except for the occasional failure of nodes or addition of new nodes. Management[edit] Applications[edit] Mesh networks may involve either fixed or mobile devices.
Some current applications: Operation[edit] Multi-radio mesh[edit] Research topics[edit] Protocols[edit] Routing protocols[edit] FreedomBox/ExampleProjects. See also: ? FreedomBox/DesignAndToDos#Relevantprotocols and : FreedomBox/LeavingTheCloud Proposed Decentralized IANA DIANNA Project (BitDNS based) ??? Decentralised DNS Unmanaged Internet Architecture CoDNS Not opensource , but worth to have a look at Storage Filesystems Tahoe-LAFS (Least Authority File System) - is a Free Software/Open Source decentralized data store. Network Attached Storage OpenMediaVault is the next generation network attached storage (NAS) solution based on Debian Linux. Synchronisation ownCloud, data storage project from the wider KDE community SparkleShare - opensource dropbox replacement - doesn't really need a server side setup (ssh access+git) but could be included by installation instructions to user iFolder - "Sync and Share Files. " sucsynct - "Instant and efficient distributed backup and syncing, triggered whenever a file in a watched replica changes.
" Installer Piratebox sous Linux Mint, Debian Edition « Le blog de Jean. Accueil > piratebox, Uncategorized > Installer Piratebox sous Linux Mint, Debian Edition Installer Piratebox sous Linux Mint, Debian Edition Il existe une version basée sur lighttp mais j’ai voulu tester cette version "scripts" d’abord. Installation: L’installation est plus ou moins classique, et certaines commandes devront être passées sous le compte root ou via la commande sudo. Il suffit de télécharger l’archive .tar.gz (ce jour-là piratebox-0.3.3-scripts.tar.gz), puis de la décompresser avec la commande gunzip < piratebox-0.3.3-scripts.tar.gz | tar xvf - Cela crée un répertoire piratebox contenant un fichier readme.txt, ainsi qu’un répertoire piratebox à copier sous /opt Une dernière étape consiste à créer un lien symbolique sous /etc/init.d ln -s /opt/piratebox/init.d/piratebox /etc/init.d/piratebox Cette version de pirabox utilise certains packages, comme dnsmasq et hostapd .
Lancement: Le lancement s’effectue par deux commandes sous le compte root ou via la commande sudo. Exemple: