Apr 30
Without analysis tools, the definition of control strategies and screening would be “delicate” and all the functions outlined above would be difficult to implement. There are several projects concerning the means of analysis and characterization of traffic network. Here are 2 examples:
Ethereal Ethereal is a network sniffer oriented comprehensive transmission that allows you to see in detail the entire business at the liaison network, transport and application. Contrary to what its name suggests, it is not confined to local Ethernet networks. Continue reading »
Apr 30
A good quality of service on existing networks requires a correct implementation of two functions: performance guarantee and routing policies. The policy routing are used to allocate resources to priority applications, working groups or servers. With the constant increase in the volume of traffic on networks, performance guarantees are obtained by controlling the bandwidth according to policies of routings. Continue reading »
Apr 30
Until now, Unix and Linux distributions have retained the “venerable” commands arp, ifconfig and road as tools for configuring network interfaces. Given the developments listed above, it became very difficult to complete or adapt this legacy. That is why the network architecture kernels 2.4.xx has been completely redesigned to make different levels of configuration interfaces more accessible. This new architecture involves the establishment of a new configuration tool: iproute2. Continue reading »
Apr 30
The 3 modes of use generic described above illustrate the developments consecutive all-round development of the Internet. As applications “natives” of Internet services (domain names, mail, forums, Web, etc..) Are integrated into the system free GNU / Linux it is natural that occupies a prominent place on servers. What about the other important part of this system: the kernel? The first verions of the 2.6 kernels stable came out in early 2004. Once again, this series marks an important step in the integration of network functions [Kernel Traffic]. It includes all the major technical developments of the Internet Continue reading »
Apr 30
With thirty years of experience, and a pooling near his general budget, Porto Alègre still considers itself as a permanent laboratory of participatory democracy. In France, the list of cities that engage in participatory adventure is long, opening still more or less their budget (and therefore power) real. From 100% participatory Morsang-sur-Orge or Bobigny, the modest (but virtuous) 0.1% Paris, asking people, they are informed, they are associates and the life of the country, the city. Continue reading »
Apr 30
Internet and the public service: a story of unlikely encounter between a gadget uncontrollable, costly in both time and financial resources, and noble and great institutions, known for their reluctance to any changes? The latter proposal is wrong on several points of view. It should firstly to demystify the Internet: this is an improvement only a means of telecommunication directly from the phone and computer. But the French government has long since mastered the tool Minitel and, therefore, prone to a successful migration know-how accumulated to the new networks. Continue reading »
Apr 30
With the transmission speed of current Internet network, photography and visual arts in general are candidates for idaux be vhiculs around the world. Each person who posse its own page on the Internet cre somehow his own medium of mass communication. The full potential of this type of communication is not yet completely drawn, but the fact remains that the photographer must do even more careful to respect the right of people whose traits are reproduced and diffuss . The development of so-called right image is different stadiums around the world. Continue reading »
Apr 30
The Internet is a network of global scale national computer networks, and then rgionaux premises. It possde its own communication protocol that allows you to move parts of a same message through different channels according to network congestion. Each branch computer on the network possde an address of its own, just like a postal address. Some forms volues more use of the Internet (better known as the World Wide Web) Continue reading »
Apr 30
With the home network assistant, I try to share the connection Internet between a PC Windows XP Home Edition connected to the ADSL (and where Internet works well) and a laptop with Windows XP Professional. The network is working well but for connecting to the Internet, error at the end of the installation. I tried manually manually share the connection but Error 1061 I tried the opposite Continue reading »
Apr 29
Course description. Being able to administer services and networks take the exam LPI102. Course hotel network services on Linux as the standard LPI (www.netguido.com). Over a period of 35 hours, the course covers the following points: kernel configuration sequence startup configuration printers, shell programming, administrative tasks, configuration TCP / IP network services (Apache, Send mail, Samba, NFS) and security. Continue reading »