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Showing posts with label Internet. Show all posts

Cloud Computing

Posted by Unknown Sunday, 19 May 2013 0 comments

                 What is Cloud computing?

Cloud computing is the use of computing resources like hardware and software which are available on the remote location and accessible over a network.
In cloud computing, the word cloud is used for "the internet" and computing  means " a type of internet-based computing".
Here  in cloud computing there is no any local servers or hardware to handle the application.
         


It should be runs through Interface software.All heavy lifting done by the web based services and the third party services holds all information like :
                             - Software       - Saved data       - Security                                                                              
                                                                       The cloud computing is used in online email services, storing online data.Cloud computing networks are large groups of servers and cloud service providers that usually take advantage of low-cost computing technology, with specialized connections to spread data-processing chores across them.  Virtualization techniques are often used to maximize the power of cloud computing.


Their are different types of cloud are their as below....


1) Public Cloud   : A public cloud can be accessed by any subscriber with an internet connection and access to the cloud space.

2) Private Cloud : A private cloud is established for a specific group or organization and limits access to just that group.

3)Community Cloud : A community cloud is stored among two or more organizations that have similar cloud requirements.

4) Hybrid Cloud : It is essentially a combination of at least two clouds, where the cloud included are mixture of public , private and community.


Some of the advantages of the cloud computing

- Unlimited, everywhere access
- Reduction in hardware and software cost.
- No physical space in office or home.
- Increase the computing process.
- Automatic redundancy.

Some of the disadvantages of the cloud computing

-  Change is hard.
-  Security & privacy
     -- User don't physically have data.
     -- Storage cloud be hacked.
-  Services Live and Die by their security reputation.
- Significally harder to infiltrate these system.


Find the Person Behind an Email Address

Posted by Anonymous Monday, 20 August 2012 0 comments
Know the email address of someone but nothing more? Learn techniques to help you uncover the location and other details of the email sender.


You get an email from a person with whom you have never interacted before and therefore, before you reply to that message, you would like to know something more about him or her. How do you do this without directly asking the other person?
Web search engines are obviously the most popular place for performing reverse email lookups but if the person you’re trying to research doesn’t have a website or has never interacted with his email address on public forums before, Google will probably be of little help.
No worries, here are few tips and online services that may still  help you uncover the identity of that unknown email sender.

#1. Find the sender’s location


Open the header of the email message and look for lines that say “Received: from” followed by an IP address in square brackets. If there are multiple entries, use the IP address mentioned in the last entry.
Now paste the IP address in this trace route tool and you should get a fairly good idea about the location of the email sender.

#2. Reverse email search with Facebook

Facebook has 450 million users worldwide and there’s a high probability that the sender may also have a profile on Facebook.
Unlike LinkedIn and most other social networks, Facebook lets you search users by email address so that should make your job simpler. Just paste the email address of the sender into the Facebook search box and you’ll immediately know if a matching profile exists in the network.
If you are able to locate that person on Facebook, download his profile picture and then upload it to Google Images (click the camera icon in the search box). This acts as a reverse image search engine so you can locate his other social profiles where he may have used the same picture.

#3. Check all the other Social Networks
You can use a service like Knowem to quickly determine if a profile with a particular username exists in any of the social networks.
If the email address of the send is something like green_peas@hotmail.com, there’s a probably that he or she may have created accounts of some other social network using the same alias “green_peas” – put that in knowem.com to confirm.

 #4. People Search

Finally, if nothing works, you should try a people search service like Pipl and Spokeo – both services let you perform reverse email lookups but Spokeo has a more comprehensive database than Pipl.
Other than regular web documents, Spoke also scans social networks and even the whois information of domain names to find any bit of information associated with an email address. However, some of the results returned by Spokeo are only available to subscribers.




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