Essential Networking Notes -- Set-1

1. Topic 1- OSI Model - PDF Format
2. Topic 2 - TCP IP - PDF Format
3. Topic 3 - osi vs tcp - PDF Format
4. Topic 4 - Transmission - PDF Format
5. Topic 5 -PSTN & Multiplexing - PDF Format
6. Topic 6 - Switching - PDF Format
7. Topic 7 - Transmission Media (Guided) - PDF Format
8. Topic 8 - Transmission Media (Unguided) - PDF Format
9. Topic 9 - Error Detection - PDF Format
10. Topic 10 - Error Correction - PDF Format
11. Topic 11 - Framing - PDF Format
12. Topic 12 - Flow Control Protocols - PDF Format
13. Topic 13 - Channel Allocation ALOHA & CSMA - PDF Format
14. Topic 14 - Collision Free & Wireless Protocols - PDF Format
15. Topic 15 - IEEE 802.3 - PDF Format
16. Topic 16 - IEEE 802.4 - PDF Format
17. Topic 17- IEEE 802.5 - PDF Format
18. Topic 18 - ISDN - PDF Format

Presentations in PDF Format on General Topics - Set 12

111. MilkhaSingh - PPT Format
112. Pandit_Jawahar_Lal_Nehru - PPT Format
113. Story_Of_Tata - PPT Format
114. TsunamiWaves - PPT Format

Windows 8 and Security Updates

Like earlier versions of the operating system, Windows 8 can check to see if software updates for your computer are available from Microsoft — and then install them for you so you don't have to remember to do it yourself.

Security updates and other software patches deemed important or critical are typically installed automatically when Microsoft pushes them out. (The company often releases the updates on the second Tuesday of each month, but it can happen as needed).

But even if you have the automatic updates option turned on, not all the software Microsoft sends you will install itself. Certain types of updates, including fresh versions of programs that have new user agreements or terms of service statements, require your attention because you are asked to read the legal fine print — or at least click the Agree button — before you can install the software.
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New Zealand PM's website Hacked

WELLINGTON: The hacktivist group Anonymous on Tuesday briefly crashed New Zealand Prime Minister John Key's website in protest at plans to allow the country's intelligence agency to spy on local residents.

A group identifying itself as Anonymous NZ posted a clip on YouTube saying it had attacked Key's website www.johnkey.co.nz and 12 others linked to the ruling National Party to show its opposition to "a despicable piece of legislation."


"John Key make no mistake the majority of New Zealanders oppose this bill," it said.

"Due to your own arrogance and your unwillingness to listen to the people we have decided to take direct action."

Key's website was operating normally by Tuesday afternoon and the prime minister condemned the hackers.

"(It's) pretty juvenile behaviour in my view," he told Radio New Zealand. "These people are obviously doing something that's both illegal and inappropriate. They're trying to make their own political point, but their point's wrong."

New Zealand's intelligence service, the Government Communications Security Bureau (GCSB), is currently barred from spying on New Zealand citizens or residents.

Key argues the restriction should be removed so it can cooperate more closely with agencies such as the police and military in an increasingly complex cybersecurity environment.

The bill is currently before parliament and expected to pass by a single vote, although groups ranging from the Law Society to internet giants Facebook and Google have raised concerns about the proposal.
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Indian develops technology to make software unhackable

WASHINGTON: A unique system has been designed by researchers that will encrypt software in order to make it impervious to reverse-engineering.

UCLA computer science professor Amit Sahaiand a team of researchers have developed a system which will only allow someone to use a programme as intended, while preventing any deciphering of the code behind it.

This is known as software obfuscation in computer science and it is the first time it has been accomplished.

Sahai said that the new system puts up an iron wall making it impossible for an adversary to reverse-engineer the software without solving mathematical problems that take hundreds of years to work out on today's computers.

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Save your Privacy on Facebook

With the latest addition of the Graph Search to social networking site Facebook, it has become time consuming and cumbersome to customize settings for every post and each photograph. 

 According to the Sydney Morning Herald, a few quick clicks here and there can help restore a profile to being less vulnerable to public access, including photographs and posts. 

 To limit the way people in the friends list access the content one can simply select Friends under the 'Who can see my stuff' section in the privacy settings and further put them in the Restricted category so as to allow them access to only those posts which are made public. 

 Furthermore, to save oneself from being seen in those old embarrassing photographs, a user can simply click on the Activity Log, then 'photos of me' and on the top of the page one can customize 'On Timeline' visible settings which allows for bulk-untag. 

 To review the customized settings, a user can choose to view their own profile as a particular person or to public by clicking on View As in the Activity Log section, the report added.

Presentations in PDF Format on General Topics - Set 11

101. Presentation on SoftwarePiracy - PDF Format
102. Presentation on ThreatsToComputers - PDF Format
103. Presentation on TrojansAndWorms - PDF Format
104. Presentation on VideoDisplays - PDF Format
105. Presentation on Wi_Bro - PDF Format
106. About_Akbar - PPT Format
107. Dalai_Lama - PPT Format
108. France - PPT Format
109. France_2 - PPT Format
110. Google_Advanced_Search - PPT Format