Disqus for Cyber Fort

Thursday 27 February 2014

“Outernet”a project to provide free wi-fi to entire world from space

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Washington:  A US company is planning to build an 'Outernet - a global network of cube satellites broadcasting Internet data to all the people on the planet - for free.

The idea is to offer free Internet access to all people, regardless of location, bypassing filtering or other means of censorship, according to the New York based non-profit organisation, Media Development Investment Fund (MDIF).

MDIF proposes that hundreds of cube satellites be built and launched to create a constellation of sorts in the sky, allowing anyone with a phone or computer to access Internet data sent to the satellites by several hundred ground stations.


The organisation claims that 40 per cent of the people in the world today are still not able to connect to the Internet - and it's not just because of restrictive governments such as North Korea - it's also due to the high cost of bringing service to remote areas, 'phys.org' reported.


An Outernet would allow people from Siberia to parts of the western US to remote islands or villages in Africa to receive the same news as those in New York or Tokyo.

The Outernet would be one-way - data would flow from feeders to the satellites which would broadcast to all below.

MDIF plans to add the ability to transmit from anywhere as well as soon as funds become available.

MDIF has acknowledged that building such a network would not be cheap. Such satellites typically run $100,000 to $300,000 to build and launch.


How Does It Works ?

Outernet consists of a constellation of hundreds of low-cost, miniature satellites in Low Earth Orbit. Each satellite receives data streams from a network of ground stations and transmits that data in a continuous loop until new content is received. In order to serve the widest possible audience, the entire constellation utilizes globally-accepted, standards-based protocols, such as DVB, Digital Radio Mondiale, and UDP-based WiFi multicasting.


According to MDIF, Hundreds of cube satellites to be built and launched to create a constellation of sorts in the sky, which allow anyone to connect with the Internet through Mobile or Computer. Still today 40%  of the people in the world are there who are not able to connect to the Internet, due to several reasons includes restrictive government rules, high cost of bringing service to remote areas. An Outernet would allow people from Siberia to parts of the western US to remote islands or villages in Africa to receive the same news as those in New York or Tokyo. The Outernet would be one-way – data would flow from feeders to the satellites which would broadcast to all below. MDIF also waiting for the funds, after that it will be able to transmit from anywhere. According to MDIF, such type of networks cost $100,000 to $300,000 to build and launch, well it’s not a cheap amount. Currently the organization plans to have prototype satellites ready in June with initial deployment happening mid-2015. 

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Thursday 20 February 2014

Which Browser Is Better for Privacy And for Security Purpose

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Dear Lifehacker, 
With Firefox getting ads and Chrome extensions spying on me, is there really one browser that's better than the others when it comes to privacy? Does it matter if I use something like Opera or Safari instead? Is my browser watching what I'm doing and reporting back? P
That's a great question, and the answer isn't as clear cut as you might think. Different browsers handle user data in different ways, and when you toss add-ons and extensions into the mix, the picture changes even more. Let's take a look at some of the most popular browsers from a privacy angle, and see who has your back when it comes to tracking—or not tracking—what you do online. 

Chrome, and Google's Position on Browser Privacy

Google Chrome, being the dominant web browser in most of the world, has taken a few hits lately in the privacy department. Between adware-filled extensions and microphone-listening exploits, It might look like Chrome has privacy problems. However, both of those issues are third parties using a combination of built-in features and user trust to spy on them—it has nothing to do with the browser itself. We'll get to how third parties play into things a little bit later, but first, let’s talk about Chrome on its own.

Firefox, and the Mozilla Foundation


Firefox has long been touted as the best browser for privacy. It's open source, managed by the non-profit Mozilla Foundation (of which, it should be noted, Google is an investor), and is at the core of most privacy-focused browsers (like the previously mentioned Tor Browser Bundle). Even on the mobile side, Firefox for Android is open source and its code available to anyone who wants it. By most accounts, Mozilla is completely above board with what Firefox does, and the Foundation doesn't trade in user data, so there's no reason for them to harvest it.

What About Opera, Safari, and Internet Explorer?

So if you don't use Firefox or Chrome, where does that leave you? We asked the EFF, but none of their experts had any knowledge when it came to browsers that weren't Chrome or Firefox. They did, however, note that privacy advocates generally prefer open source browsers like over closed-source, proprietary ones like Apple's Safari and Microsoft's Internet Explorer. The EFF praised both however for pioneering their own privacy features, like Safari's 3rd party cookie blocking and IE's Tracking Protection Lists. Still, the fact that you can't see under the hood and that neither have developer APIs makes them tough to analyze. 

The Bottom Line: No, Your Browser Doesn’t Make a Huge Difference

So where does that leave us? Well, your browser is probably sending some information back to the company that created it, but that information is explicitly used to support the features you have turned on. As long as you trust the developer behind your favorite browser, this isn't an issue. Bonus: there's nothing dangerous or invasive about using Chrome sync or Firefox sync.


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Sunday 16 February 2014

Chrome, Firefox face threat of mischievous cyber attacks

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New Delhi: Multiple vulnerabilities have been detected in popular web browsers Google Chrome and Mozilla Firefox and cyber security sleuths have advised Internet users in the Indian cyberspace to guard against arbitrary activities on their systems.
In view of these suspicious virus-based activities, Internet users have been asked to upgrade their personal versions of these two most used web browsers on their work stations.

“Multiple vulnerabilities have been reported in Mozilla Firefox, Thunderbird and SeaMonkey which could be exploited by a remote attacker to bypass certain security restrictions, disclose potentially sensitive information, gain escalated privileges, execute arbitrary code and causes denial of service condition on the affected system,” the Computer Emergency Response Team of India (CERT-IN) said in its latest advisory to online users in the country.

The CERT-In is the nodal agency to combat hacking, phishing and to fortify security-related defences of the Indian Internet arena.

“The two web browsers are an important tool for Internet surfing among Indian online consumers. The anomalies have been detected recently and it would be advised that users upgrade their existing versions sooner than later. These activities are mischief on part of hackers or they are harmful viruses,” a cyber security expert told PTI.
The agency, in its advisory, said the vulnerability is caused “due to improper restrict access to ‘about:home’ buttons by script on other pages in Mozilla Firefox”.

“A user-assisted remote attacker could exploit this vulnerability using a crafted website or webpage. Successful exploitation of this vulnerability could allow user-assisted remote attacker to cause a denial of service condition,” the CERT-In said.
Similar issues have been reported in the popular browser offered by Google.

“Multiple vulnerabilities have been reported in Google Chrome which could be exploited by a remote attacker to cause denial of service condition or execute arbitrary code on the target system,” the agency said.

The maximum damage these vulnerabilities can cause, the advisory said, was memory corruption, unwanted downloading of files, loss of sensitive information (when Mozilla Firefox is used in Android phones) and cause of denial of various services on the Internet to the user.

The agency advised Internet users to either user proper security patches (Mozilla Firefox) or upgrade the browser version (Google Chrome).

The affected software systems include “Firefox versions prior to 27.0, Firefox extended support release (ESR) versions prior to 24.3, Thunderbird versions prior to 24.3, SeaMonkey versions prior to 2.24 and Google Chrome prior to version 32.0.1700.102".

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Top 25 Free Educational Video Sites

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RefSeek's guide to the 25 best online resources for finding free educational videos. With the exception of BrainPOP and Cosmeo, all listed sites offer their extensive video libraries for free and without registration.

Academic Earth
Thousands of video lectures from the world's top scholars.
academicearth.org
Big Think
Video interviews with 600+ thought leaders in a range of fields.
bigthink.com
Brightstorm
Short-form online video lessons by professional educators. Free math lessons.
brightstorm.com
CosmoLearning
Aggregator of free, online video lessons and documentaries.
cosmolearning.com
Coursera
Lectures taught by world-class professors and reinforced through interactive exercises.
coursera.org
EdX
Courses designed specifically for interactive study via the web.
edx.org
Futures Channel
High quality multimedia content ideal for use in the classroom.
thefutureschannel.com
Howcast
Professional and user-generated how-to videos.
www.howcast.com
Internet Archive
Collection of more than two-hundred thousand free historical videos, many academic.
archive.org
iTunes U
Free lectures, language lessons, audiobooks, and more accessible via Apple iTunes.
Apple iTunes - Apple iTunes Software
Khan Academy
Self-pased learning with extensive video library, interactive challenges, and assessments.
khanacademy.org
Learner.org
Professionally developed programming for K-12 classrooms.
learner.org
Math TV
Professional video lessons in mathematics. Covers basic math through calculus.
mathtv.com
MIT Open CourseWare
Lectures and course materials for students, teachers, and self-learners.
ocw.mit.edu  |  Also see: OpenCourseWare Finder
MIT Video
Guide to more than 11,000 interesting MIT videos and lectures.
video.mit.edu/
NeoK12
Aggregator of high-quality educational videos from around the Web.
www.neok12.com
ResearchChannel
3,500 videos from distinguished researchers and scholars.
youtube.com/user/ResearchChannel
PBS
Free videos from your favorite PBS programs, including NOVA and Frontline.
video.pbs.org
SchoolTube
Video sharing platform for schools featuring original content created by students.
www.schooltube.com
SchoolsWorld
Engaging, professional videos and practical resources for educator development.
www.schoolsworld.tv
SnagFilms
Library of free, full-length documentary films.
www.snagfilms.com
TeacherTube
Online aggregator of educational videos.
www.teachertube.com
TED
Fascinating presentations by the world's leading thinkers and doers.
www.ted.org
Videojug
Collection of videos from professors, professionals, coaches, teachers, and consultants.
www.videojug.com
WatchKnowLearn
Comprehensive online directory of educational videos aggregated from across the Web.
www.watchknowlearn.org
WonderHowTo
Search engine and directory of free how-to videos.
www.wonderhowto.com
Open Yale Courses
Free access to a selection of introductory Yale courses.
oyc.yale.edu
YouTube EDU
Free lectures from more than one hundred colleges and universities.
www.youtube.com/edu  |  Also see: Talks@Google
Additional sites that are not free but offer outstanding content:
BrainPOP
Provider of original, animated educational videos. Subscription required.
www.brainpop.com
Cosmeo
30,000 video segments from Discovery Education. Subscription required.
www.cosmeo.com  |  Also see: Discovery Education Streaming

general interest

Hulu
Joint venture between NBC Universal and News Corp. Features TV shows and movies.
www.hulu.com  |  Also see: PBSNational Geographic
Metacafe
Specializes in short-form original video content.
www.metacafe.com
Vimeo
Upload, share, and explore user-generated videos.
www.vimeo.com
YouTube
Hosts millions of user-generated and professional videos.
www.youtube.com
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Friday 14 February 2014

List Of All Top Android Versions

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Android is a Linux-based operating system for mobile devices such as smartphones, multitasking phones and tablet computers such as the Galaxy Tab. It is developed by the Open Handset Alliance led by Google.Google bought over the initial developer Android Inc in 2005, to gain total control of the Android Franchise, today it is worth several hundred times what it was bought for.The Android franchise has a total of 9 versions, the names of which have been illustrated below. 


The following names are used for the currently existing Android releases. Note that versions 1.0 and 1.1 were not publicly named. However, Android 1.1 was internally referred to as "Petit-Four" (noted in Traroth's answer, confirmed here):
  • Android 1.5
Donut:
  • Android 1.6
Eclair:
  • Android 2.0
  • Android 2.1
see also:- 30+ Secret Codes Of Android Devices

Froyo: (short for "frozen yogurt")
  • Android 2.2
Gingerbread:
  • Android 2.3
Honeycomb:
  • Android 3.0
  • Android 3.1
  • Android 3.2
Ice Cream Sandwich:
  • Android 4.0
see also:- 10 Android Tips and Tricks

Jelly Bean:
  • Android 4.1
  • Android 4.2
  • Android 4.3
see also :- Top Features Of Android Jelly Bean

KitKat:
  • Android 4.4 (confirmed)

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