GB and Gb- what is the difference?

For those who don't understand the difference between 2Gb and 2GB.
2GB = 2 GigaBytes ie 2048 MegaBytes(MB)
on the other hand
2 Gb = 2 GigaBits ie 256 MegaBytes(MB) [ 2048/8 = 256 ]

as 1 Byte = 8 bits

Basics of Networking

What is a firewall?
defines a firewall as "a system or group of systems that enforces an access control policy between two networks." In the context of home networks, a firewall typically takes one of two forms:

Software firewall - specialized software running on an individual computer, or
Network firewall - a dedicated device designed to protect one or more computers.

Both types of firewall allow the user to define access policies for inbound connections to the computers they are protecting. Many also provide the ability to control what services (ports) the protected computers are able to access on the Internet (outbound access). Most firewalls intended for home use come with pre-configured security policies from which the user chooses, and some allow the user to customize these policies for their specific needs.

What are TCP and UDP Ports?

TCP (Transmission Control Protocol) and UDP (User Datagram Protocol) are both protocols that use IP. Whereas IP allows two computers to talk to each other across the Internet, TCP and UDP allow individual applications (also known as "services") on those computers to talk to each other.

In the same way that a telephone number or physical mail box might be associated with more than one person, a computer might have multiple applications (e.g. email, file services, web services) running on the same IP address. Ports allow a computer to differentiate services such as email data from web data. A port is simply a number associated with each application that uniquely identifies that service on that computer. Both TCP and UDP use ports to identify services. Some common port numbers are 80 for web (HTTP), 25 for email (SMTP), and 53 for Dmain Name System (DNS).

What are static and dynamic addressing?

Static IP addressing occurs when an ISP permanently assigns one or more IP addresses for each user. These addresses do not change over time. However, if a static address is assigned but not in use, it is effectively wasted. Since ISPs have a limited number of addresses allocated to them, they sometimes need to make more efficient use of their addresses.

Dynamic IP addressing allows the ISP to efficiently utilize their address space. Using dynamic IP addressing, the IP addresses of individual user computers may change over time. If a dynamic address is not in use, it can be automatically reassigned to another computer as needed.

What is an IP address?
IP addresses are analogous to telephone numbers – when you want to call someone on the telephone, you must first know their telephone number. Similarly, when a computer on the Internet needs to send data to another computer, it must first know its IP address. IP addresses are typically shown as four numbers separated by decimal points, or “dots”. For example, 10.24.254.3 and 192.168.62.231 are IP addresses.

If you need to make a telephone call but you only know the person’s name, you can look them up in the telephone directory (or call directory services) to get their telephone number. On the Internet, that directory is called the Domain Name System, or DNS for short. If you know the name of a server, say www.cert.org, and you type this into your web browser, your computer will then go ask its DNS server what the numeric IP address is that is associated with that name.

Every computer on the Internet has an IP address associated with it that uniquely identifies it

BITPro UG 7th Anniversay Event on 7th Jan 2012 Saturday, January 7, 2012

BangaloreITpro's 7th Anniversary Celebration Event Invite.

BITpro's 7th Anniversary Celebrations
		7th Jan 2012
Agenda
Time	Speaker	Topics
9.00AM – 9.30PM	Registration
9.30AM – 10.15AM	TBD	Keynote
10.15AM – 11.00AM	TBD	TBD
11.00AM - 11.30AM	Tea Break
11.30AM - 12.15PM	Mr.Aviraj, Microsoft Evangelist	TBD
11.30AM - 12.15PM	Mr.Ravikanth Chaganti, Dell R&D	PowerShell 3.0 features in Windows 8 and Windows 8 Server
1.00PM - 2.00PM	Lunch Break
2.00PM - 2.45PM	Mr.Anand MS, Microsoft India	Private Cloud Architecture Design & Demos
2.45PM - 3.30PM	Mr. Gaurav Anand, Microsoft MVP	Windows Server 8 Preview
3.30PM - 4.00PM	Tea Break
4.00PM - 4.45PM	Dr.Pavanaja, ExcelSoft	Microsoft Indic in Windows 7 and Windows 8            (নমস্কার! नमस्ते! ನಮಸ್ಕಾರ! സ്വാഗതം! வணக்கம்! నమస్కారము!)
4.55PM - 5.30PM	Community Award ceremony & Closing Note

Venue: JSS Auditorium
1st Main, Jayanagar VII Block, Kanakapura Road
Jayanagar VII Block
Bangalore 560011
More info avail at UG site: http://bitpro.in
Contact UG team mail id: info@bitpro.in

Bitpro UG Meet on 24th Dec 2011 Saturday, December 24, 2011

BangalroeITPro User Group Meeting Invite

		24th Dec 2011
Agenda
Time	Speaker	Topics
3.00PM – 3.15PM	Registration
3.15PM – 4.15PM	Ashish Gulati, Dell India (R&D)	Laptops, Desktops, Workstations : Deploying, Configuring and Maintaining Dell Business Client Systems using Dell tools (CCTK, OMCI)
4.15PM - 4.30PM	Tea Break
4.30PM – 5.30PM	Mr.Sriramajayam Samannan,  Asst. Consultant, TCS	Microsoft Application Virtualization (App-V)
5.30PM – 6.00PM	Kaliyan S	Closing note

 Venue: Mistral Software Pvt Ltd,
Near Domlur Flyover, Koramangala Innner Ring Road,Bangalore.
More details avail at our gorup site http://bitpro.in
UG contact email id: info@bitpro.in

Bengaluru, Karnataka
India

Saturday, December 24, 2011 from 3:00 PM to 6:00 PM (PT)

 

eLagaan Startup Camp: Fund Raising & Legal compliance - Bangalore

eLagaan Startup Camp is an event to gather insights and interact with industry experts & leaders. This is not meant for showcasing ideas and products but rather brainstorm & learn from experts to benefit from their experience to help build/run a successful start up.

Many start ups fail, not because they didn't have the right product or service, but because either they raised fund at the wrong time from the wrong investor in wrong terms, OR they didn't have an exit strategy, OR even worse they didn't have a proper legal structure to make the company fund able or sale able.
The Camp will touch base on these aspects from people who have made it happen, and then followed by strong panel to see both sides of the coin.

The event is targeted towards entrepreneurs & wannabe entrepreneurs. Registration is completely FREE, so Register Now at http://elagaan.com/startupcamp

RSVP at the following places to connect with other attendees & Speakers:
Facebook: https://www.facebook.com/events/215807888497452/
Linkedin: http://linkd.in/vkfjyD

AGENDA:
9:00 AM Registration & Networking
9:30 AM Get funded! Right funding at right time and right source
10:15 AM Legal consideration during Business lifecycle
11:15 AM Panel: To fund or not to fund
12:00 PM What does it take to sell a company

For list of speakers & details of the event please visit http://elagaan.com/startupcamp

Saturday, January 7, 2012

ABOUT ELAGAAN:
eLagaan offers end to end CA, CS, Business legal & Payroll services for startups & growing companies. It specialises in formulating investor friendly structures & terms, staying compliant, setting up best practices desired by founders, investors & employees. This facilitates companies to grow & scale with ease and stay fundable and saleable. Learn more about eLagaan at : http://elagaan.com/

Mark Zuckerberg wants Facebook's minimum age limit to go

Facebook CEO Mark Zuckerberg wants kids younger than 13 years on Facebook.

 Speaking at NewSchools Summit in the US, Zuckerberg said that younger children should be allowed on the site for education purposes.

According to a news report on Fortune, the Facebook CEO said that in the future, software and technology will enable people to learn a lot from their fellow students.

Presently, Facebook allows only people aged 13 and above to sign up for the site. However, it is quite esay to get around this as Consumer Reports recently reported that there are approximately 7.5 million underage kids on Facebook. However, Zuckerberg seems determined to change this. 'That will be a fight we take on at some point,' he said according to Fortune. He said that his philosophy is that for education one needs to start at a really, really young age.

He pointed out that due to restrictions we haven't even begun this learning process. According to

the article, he says that if allowed, Facebook will ensure that kids are safe on Facebook. 'If they're lifted then we'd start to learn what works. We'd take a lot of precautions to make sure that they (younger kids) are safe,' he reportedly said.

Interestingly, Facebook chief technology officer Bret Taylor recently appeared before US Congress, where he was grilled about underage kids on the site.

In March in a statement, Facebook said that it removes about 20,000 profiles from the site per day for a variety of policy violations, including spam, inappropriate content and underage use.

Lets meet youngest hacker,Jake Essman,14 year old Self Taught Hacker

Jake Essman a 14-Year-Old Self Taught Hacker is a New York native. A student at the United Nations School, teamed up with fellow engineers Jesse Leone, William Li, and  Feliks Beygel to create “buyby”,a shopping search engine. BuyBy is fairly simple—you use the site to find where a product is located at a store. So you could search for a ‘Red t-shirt’ and the search engine will not only show you a list of online stores that have that product, But it will also show you stores that sell the product nearby your location by considering your physical location based on your IP address.

Essman, who has been coding since he was ten, says that he decided to come to the TechCrunch Disrupt Hackathon(held at New York on 22^nd May 2011) at the urging of his Mom., Essman says that coding is a hobby, and this isn’t the first site he’s created. “RantingOutLoud” ,a forum where anyone can can complain about anything, is a also Jake Essman project. What’s more, he essentially taught himself how to code.

But for Essman, coding is still just a hobby and at this point, his career aspirations lie in the field of medicine as his goal is to become a doctor.

More information:

 http://ve.s76lqt75.vesrv.com/

RantingOutLoud: http://rantingoutloud.com/index.php