arte.tv: How the Internet connects Europe

arte.tv: How the Internet connects Europe

The internet in Europe is not maintained by one provider. There are Thousands cooperating and connecting their networks. The data packages travel from one network to the other until they reached their destination. Even if the package is going from a German sender to a destination within Germany it may cross national borders and can do a detour in the US for example.

Washington Post: Here’s what you find when you scan the entire Internet in an hour

Washington Post: Here’s what you find when you scan the entire Internet in an hour
Until recently, scanning the entire Internet, with its billions of unique addresses, was a slow and labor-intensive process. For example, in 2010 the Electronic Frontier Foundation conducted a scan to gather data on the use of encryption online. The process took two to three months. A team of researchers at the University of Michigan believed they could do better. A lot better. On Friday, at the Usenix security conference in Washington, they announced ZMap, a tool that allows an ordinary server to scan every address on the Internet in just 44 minutes. The EFF team used a tool called Nmap that sends a request to a machine and then listens for the recipient to reply. These requests can be conducted in parallel, but keeping records for each outstanding request still creates a lot of overhead, which slows down the scanning process. In contrast, ZMap is “stateless,” meaning that it sends out requests and then forgets about them. Instead of keeping a list of oustanding requests, ZMap cleverl

zmap.io: ZMap – The Internet Scanner

zmap.io: ZMap – The Internet Scanner
ZMap is an open-source network scanner that enables researchers to easily perform Internet-wide network studies. With a single machine and a well provisioned network uplink, ZMap is capable of performing a complete scan of the IPv4 address space in under 45 minutes, approaching the theoretical limit of gigabit Ethernet. ZMap can be used to study protocol adoption over time, monitor service availability, and help us better understand large systems distributed across the Internet. While ZMap is a powerful tool for researchers, please keep in mind that by running ZMap, you are potentially scanning the ENTIRE IPv4 address space and some users may not appreciate your scanning. We encourage ZMap users to respect requests to stop scanning and to exclude these networks from ongoing scanning. We suggest that users coordinate with local network administrators before performing any scans and we have developed a set of scanning best practices, which we encourage researchers to consider. It

2013: Das Web zurückerobern

2013: Das Web zurückerobern
Und so wächst eine Generation von Netznutzern heran, die keine E-Mails mehr benutzt (weil alles über am Ende kommerzielle Dienste wie Skype oder WhatsApp oder Facebook-Nachrichten läuft) und die kaum noch weiß, was ein Web-Link ist (weil geteilte Inhalte direkt innerhalb von Facebook angezeigt werden und mit einem Klick weitergegeben werden können – ebenfalls innerhalb des Systems).

Veröffentliche ich heute etwas, stoßen die meisten Leserinnen und Leser erst dann darauf, wenn ich den Link per Twitter und Facebook weitergebe, wo der Inhalt dann oft auch diskutiert wird. Ein Spreeblick-Artikel braucht heutzutage die Kommentar-Betreuung und ggf. meine Reaktion auf diversen Kanälen, die Debatte zerfasert, teilt sich auf und verschwindet schnell im Nirwana der Sozialen Netzwerke. Noch schlimmer: Wenn auf einen Tweet verschiedene interessante Antworten folgen, sind diese nach kurzer Zeit verloren, eine Dokumentation ist beinahe unmöglich.