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FTTH: Ausbau der Deutschen Glasfaser "piekst die Telekom" -
Anga Com

Der massive Ausbau der Deutsche Glasfaser auf dem Land zwingt die Telekom zum Handeln. Im Jahr 2019 soll der Vectoring-Ausbau vorbei sein und mit FTTH begonnen werden.
glasfaser  netzwerk 
6 days ago by andreaskoch
Mobilfunk: Niedersachsen meldet fast 9.000 Funklöcher -
Niedersachsen meldet rund 9.000 Funklöchern, in Brandenburg sind es sogar über 23.000, doch die Netzbetreiber reden weiter von 95 Prozent Mobilfunkabdeckung und mehr.
mobilfunk  netzwerk  politik 
17 days ago by andreaskoch
200 Gigabyte: Vodafone vervierfacht Datenpaket des Gigacubes -
Statt 50 Gigabyte ungedrosseltes Datenvolumen erhalten Nutzer des Gigacubes von Vodafone nun 200 Gigabyte. Der Preis bleibt dabei gleich.
gadget  netzwerk  mobilfunk 
6 weeks ago by andreaskoch
COYO ist das Enterprise Social Network, mit dem du und deine Kollegen besser zusammenarbeiten!
voice  cio  plattform  platform  netzwerk  network  coyo  it  otto  group 
9 weeks ago by Flo1H
Locking Down Rsync for Multiple Directories
As a Joey Hess fanboy, for years I have been following his article locking down ssh authorized keys to make rsync automated backups more secure. The problem is that by default entries in ~/.ssh/authorized_keys will allow access for any reason, and we often want to limit access to rsync backups. I am particularly interested in this because I have been burned before.
Sicherheit  Linux  Netzwerk 
11 weeks ago by amenthes
Geert | Distraction and its Discontents–Ebbs and Flows in Social Media Sensibility
Welcome to the New Normal. Social media is reformatting our interior lives. As platform and individual become inseparable, social networking becomes identical with the ‘social’ itself. No longer curious what ‘the next web’ will bring, we chat about what sort of information we’re allowed to graze over during meagre days. Former confidence in the seasonality of hypes that come and go have been shattered. Instead, a new realism has set in, as Evgeny Morozov put in a tweet: “1990s tech utopianism posited that networks weaken or replace hierarchies. In reality, networks amplify hierarchies and make them less visible.”[1] An amoral stand towards today’s intense social media usage, would be, not to deliver a superior judgement and instead delve into the shallow time of lost souls like us. How can one write a phenomenology of asynchronous connections and the cultural effects, formulate a ruthless critique of everything hardwired into the social body of the network, while not looking at what’s going on inside? Let’s therefore embark on a journey into this third space called the techno-social.
distraction  lovink  sns  sozial  netzwerk 
12 weeks ago by neuezukunft
[1302.6109] Social Resilience in Online Communities: The Autopsy of Friendster
We empirically analyze five online communities: Friendster, Livejournal, Facebook, Orkut, Myspace, to identify causes for the decline of social networks. We define social resilience as the ability of a community to withstand changes. We do not argue about the cause of such changes, but concentrate on their impact. Changes may cause users to leave, which may trigger further leaves of others who lost connection to their friends. This may lead to cascades of users leaving. A social network is said to be resilient if the size of such cascades can be limited. To quantify resilience, we use the k-core analysis, to identify subsets of the network in which all users have at least k friends. These connections generate benefits (b) for each user, which have to outweigh the costs (c) of being a member of the network. If this difference is not positive, users leave. After all cascades, the remaining network is the k-core of the original network determined by the cost-to-benefit c/b ratio. By analysing the cumulative distribution of k-cores we are able to calculate the number of users remaining in each community. This allows us to infer the impact of the c/b ratio on the resilience of these online communities. We find that the different online communities have different k-core distributions. Consequently, similar changes in the c/b ratio have a different impact on the amount of active users. As a case study, we focus on the evolution of Friendster. We identify time periods when new users entering the network observed an insufficient c/b ratio. This measure can be seen as a precursor of the later collapse of the community. Our analysis can be applied to estimate the impact of changes in the user interface, which may temporarily increase the c/b ratio, thus posing a threat for the community to shrink, or even to collapse.
sns  sozial  netzwerk 
12 weeks ago by neuezukunft

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