The Internet and the way people use it are constantly changing. Knowing traffic is crucial for operating the network, understanding users' need, and ultimately improving applications. Here, we provide an in-depth longitudinal view of Internet traffic in the last 5 years (from 2013 to 2017). We take the point of the view of a national-wide ISP and analyze flow-level rich measurements to pinpoint and quantify trends. We evaluate the providers' costs in terms of traffic consumption by users and services. We show that an ordinary broadband subscriber nowadays downloads more than twice as much as they used to do 5 years ago. Bandwidth hungry video services drive this change, while social messaging applications boom (and vanish) at incredible pace. We study how protocols and service infrastructures evolve over time, highlighting unpredictable events that may hamper traffic management policies. In the rush to bring servers closer and closer to users, we witness the birth of the sub-millisecond Internet, with caches located directly at ISP edges. The picture we take shows a lively Internet that always evolves and suddenly changes.
In recent years, the progress in both hardware and software enabled user-space applications to capture packets at 10 Gbit/s line rate. However, processing packets at such rates with software running on Commercial Off-The-Shelf (COTS) hardware is still far from being trivial. In the literature, this challenge has been extensively studied for Network Intrusion Detection Systems (NIDS), where operations are per-packet and easier to parallelize also thanks to hardware acceleration. Conversely, the scalability of Statistical Traffic Analyzers (STA) is intrinsically more complex as it implies tracking per-flow state to collect statistics. This challenge received less attention so far, and it is the focus of this work.We discuss the design choices to enable a STA to collects hundreds of per-flow metrics at a multi 10 Gbit/s line rate. We leverage a handful of hardware advancements proposed over the last years (e.g., RSS queues, NUMA architecture), and we provide insights on the trade-offs they imply when combined with state of the art packet capture libraries and multi-process paradigm. We outline the principles to achieve an optimized STA, and we apply them to engineer DPDKStat, a solution combining the Intel DPDK framework with the traffic analyzer Tstat. Using traces collected from real networks, we demonstrate that DPDKStat achieves 40 Gbit/s of aggregated rate with a single COTS PC.
Personalized advertisement has changed the web. It lets websites monetize the content they offer. The downside is the continuous collection of personal information with significant threats to personal privacy. In 2002, the European Union (EU) introduced a first set of regulations on the use of online tracking technologies. It aimed, among other things, to make online tracking mechanisms explicit to increase privacy awareness among users. Amended in 2009, the EU Directive mandates websites to ask for informed consent before using any kind of profiling technology, e.g., cookies. Since 2013, the ePrivacy Directive became mandatory, and each EU Member State transposed it in national legislation. Since then, most of European websites embed a “Cookie Bar”, the most visible effect of the regulation. In this paper, we run a large-scale measurement campaign to check the current implementation status of the EU cookie directive. For this, we use CookieCheck, a simple tool to automatically verify legislation violations. Results depict a shady picture: 49 % of websites do not respect the Directive and install profiling cookies before any user’s consent is given. Beside presenting a detailed picture, this paper casts lights on the difficulty of legislator attempts to regulate the troubled marriage between ad-supported web services and their users. In this picture, online privacy seems to be continuously at stake, and it is hard to reach transparency.
People are getting more and more conscious and worried about privacy issues that arise when browsing the Web. Ad-blockers, anti-tracking extensions, privacy and anonymity plug-ins, etc. promise to protect users and their privacy from third-party tracking systems. But how effective are they? In this paper, we present the first experimental campaign aimed at benchmarking popular plug-ins for web privacy preservation to date. We select 7 different plug-ins and setup a testbed to automatically browse regular web pages, while collecting navigation data. We analyze this data to compare each plugin, considering both privacy-protection and performance angles. Our results show that the picture is very variable, with no plugin being able to guarantee complete protection while improving performance as promised. By considering different experimental setups, we also observe that the European ePrivacy Directive is ignored by the majority of considered web sites. The directive prevents web services from installing tracking and profiling cookies before explicit consent is given by the user, but apparently this is not observed for most of services. To favor reproducibility, and repeatability, we share both the software and the data used to conduct this study with the community. Our aim is to let researchers and developers better understand the privacy threats in the Internet, possibly toward better performing privacy-preserving tools. News Sport Weather Forecast E-Commerce Forums www.corriere.it www.calcioinrosa.it www.meteoitalia.it www.trovaprezzi.it www.fotopratica.it www.repubblica.it www.calciomercato.com www.ilmeteo.it www.amazon.it www.clickblog.it www.rainews.it www.corrieredellosport.it www.tempoitalia.it www.ebay.it www.lightroomcafe.it www.ansa.it www.fantagazzetta.com www.meteo.it www.glistockisti.it www.zmphoto.it www.huffingtonpost.it www.figc.it www.centrometeoitaliano.it www.monclick.it www.photo4u.it www.oggi.it www.gazzetta.it www.nimbus.it www.redcoon.it www.pentaxiani.it www.news.google.it www.milannews.it www.meteogiornale.it www.subito.it www.dphoto.it www.tgcom24.mediaset.it www.pianetamilan.it www.datameteo.com www.kijiji.it www.maxartis.it www.tg24.sky.it www.raisport.rai.it www.meteoconsult.it www.kelkoo.it www.nikonclub.it www.panorama.it www.sportmediaset.mediaset.it www.meteogiuliacci.it www.twenga.it www.photographers.it Games Technology Search Engines Hobbies Motors www.spaziogames.it www.punto-informatico.it www.google.it www.creazioni-or.it www.autoscout24.it www.gamesvillage.it www.wired.it duckduckgo.com www.ideeperhobby.it www.automobile.it www.gamespot.com www.hdblog.it search.yahoo.com www.fabiolamarchet.it www.quattroruote.it giochi-mmo.it www.zeusnews.it www.bing.com www.fantasyehobby.it annunci.quattroruote.it www.gioco.it www.hwupgrade.it it.ask.com www.ilbauledellanonna.it www.fiat.it www.flashgames.it www.dynamick.it www.libero.it www.manididonna.it www.autozona.it www.giochixl.it www.html.it www.starpage.com www.bricoio.it www.blablacar.it www.1001giochi.it www.ilsoftware.it www.virgil...
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