Wednesday, February 24, 2016

What Is Virtual Private Server

What Is Virtual Private Server

In our ongoing effort to make IT understandable and accessible to everyone, we’re going to give a brief but thorough rundown of virtual servers – what they are, how they work, why virtualization is beneficial and whether virtual servers are right for your business. Ready to get started? Let’s jump right in.

What is a virtual server?

Whereas traditional servers were physical machines that ran one operating system, a virtual host is a physical machine that contains multiple separate “software containers”, each of which runs its own operating system. These software containers are the virtual servers. Each of these isolated virtual machines believes that it is a separate physical computer and behaves accordingly. Programs can’t tell the difference between physical and virtual machines, and neither can operating systems or other machines.

How are virtual servers used?

The main use of virtual servers for small businesses is to allow multiple owners (either business units within a company or different companies altogether) to have their own separate, secure server that they administer. Each business function (i.e. webserver, database server, application server, etc) can have a virtual server running on the physical machine with which to power their own domain name, IP address, applications and file directories. Larger businesses may use virtual servers to consolidate multiple physical machines to a single physical machine running virtual machines.

What are the benefits of a virtual server?

The main benefits of virtualization are resource allocation control, physical hardware redundancy, and better testing environments. These all combine to create a more efficient use of existing resources, whether in the physical infrastructure or the human resources managing the virtual pool, and therefore directly translate to a lower TCO. How many times have you had a server that was overbuilt due to the software vendor’s recommendations? With a virtual server, you can simply add or reduce the resources such as CPU, Ram, and/or disk space from a virtual server that doesn’t need those resources and have them available for where you do need them. With most virtual platforms, you can “move” a virtual server live from one “virtual host” to another. The virtual server doesn’t even know it was moved from one host to another. This allows you to manage hardware maintenance without suffering the typical required downtime.  Also, virtual servers make great test environments. You can isolate a virtual server from the rest of your network and test new internal applications and software without the risk of a blind, company-wide rollout.

Should I use virtual servers for my business?

YES! Almost all businesses will benefit in one way or another by using virtual servers. There are some specific questions that need to be addressed with every business individually before making the move to virtual servers. Though there are benefits, it’s possible a virtual server isn’t right for your company. The best way to find to out is to talk with a certified IT professional who can advise you on the best server solution for your situation. Then you can make an educated, informed decision about whether virtual servers are right and the best implementation strategy for your company.

Saturday, February 20, 2016

The Difference Between IPv6 and IPv4

The Difference Between IPv6 and IPv4

What is Internet Protocol (IP)?


IP (short for Internet Protocol) specifies the technical format of packets and the addressing scheme for computers to communicate over a network. Most networks combine IP with a higher-level protocol called Transmission Control Protocol (TCP), which establishes a virtual connection between a destination and a source.

IP by itself can be compared to something like the postal system. It allows you to address a package and drop it in the system, but there's no direct link between you and the recipient. TCP/IP, on the other hand, establishes a connection between two hosts so that they can send messages back and forth for a period of time.
Internet Protocol Versions

There are currently two version of Internet Protocol (IP): IPv4 and a new version called IPv6. IPv6 is an evolutionary upgrade to the Internet Protocol. IPv6 will coexist with the older IPv4 for some time.
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What is IPv4 -- Internet Protocol Version 4?


IPv4 (Internet Protocol Version 4) is the fourth revision of the Internet Protocol (IP) used to to identify devices on a network through an addressing system. The Internet Protocol is designed for use in interconnected systems of packet-switched computer communication networks (see RFC:791).

IPv4 is the most widely deployed Internet protocol used to connect devices to the Internet. IPv4 uses a 32-bit address scheme allowing for a total of 2^32 addresses (just over 4 billion addresses).  With the growth of the Internet it is expected that the number of unused IPv4 addresses will eventually run out because every device -- including computers, smartphones and game consoles -- that connects to the Internet requires an address.

A new Internet addressing system Internet Protocol version 6 (IPv6) is being deployed to fulfill the need for more Internet addresses.

What is IPv6 -- Internet Protocol Version 6?

IPv6 (Internet Protocol Version 6) is also called IPng (Internet Protocol next generation) and it is the newest version of the Internet Protocol (IP) reviewed in the IETF standards committees to replace the current version of IPv4 (Internet Protocol Version 4).

IPv6 is the successor to Internet Protocol Version 4 (IPv4). It was designed as an evolutionary upgrade to the Internet Protocol and will, in fact, coexist with the older IPv4 for some time. IPv6 is designed to allow the Internet to grow steadily, both in terms of the number of hosts connected and the total amount of data traffic transmitted.

IPv6 is often referred to as the "next generation" Internet standard and has been under development now since the mid-1990s. IPv6 was born out of concern that the demand for IP addresses would exceed the available supply.

While increasing the pool of addresses is one of the most often-talked about benefit of IPv6, there are other important technological changes in IPv6 that will improve the IP protocol:
  • No more NAT (Network Address Translation)
  • Auto-configuration
  • No more private address collisions
  • Better multicast routing
  • Simpler header format
  • Simplified, more efficient routing
  • True quality of service (QoS), also called "flow labeling"
  • Built-in authentication and privacy support
  • Flexible options and extensions
  • Easier administration (say good-bye to DHCP)

The Difference Between IPv6 and IPv4 IP Addresses


An IP address is binary numbers but can be stored as text for human readers.  For example, a 32-bit numeric address (IPv4) is written in decimal as four numbers separated by periods. Each number can be zero to 255. For example, 1.160.10.240 could be an IP address.

IPv6 addresses are 128-bit IP address written in hexadecimal and separated by colons. An example IPv6 address could be written like this: 3ffe:1900:4545:3:200:f8ff:fe21:67

Source : http://www.webopedia.com/DidYouKnow/Internet/ipv6_ipv4_difference.html

Friday, February 19, 2016

What is Database?

What is Database?

A database is a data structure that stores organized information. Most databases contain multiple tables, which may each include several different fields. For example, a company database may include tables for products, employees, and financial records. Each of these tables would have different fields that are relevant to the information stored in the table.

Nearly all e-commerce sites uses databases to store product inventory and customer information. These sites use a database management system (or DBMS), such as Microsoft Access, FileMaker Pro, or MySQL as the "back end" to the website. By storing website data in a database, the data can be easily searched, sorted, and updated. This flexibility is important for e-commerce sites and other types of dynamic websites.

Early databases were relatively "flat," which means they were limited to simple rows and columns, like a spreadsheet. (See also "flat file database"). However, today's relational databases allow users to access, update, and search information based on the relationship of data stored in different tables. Relational databases can also run queries that involve multiple databases. While early databases could only store text or numeric data, modern databases also let users store other data types such as sound clips, pictures, and videos.

source : http://techterms.com/definition/database

Thursday, February 18, 2016

what is Cloud Computing ?


What is the cloud? Where is the cloud? Are we in the cloud now? These are all questions you've probably heard or even asked yourself. The term "cloud computing" is everywhere.

In the simplest terms, cloud computing means storing and accessing data and programs over the Internet instead of your computer's hard drive. The cloud is just a metaphor for the Internet. It goes back to the days of flowcharts and presentations that would represent the gigantic server-farm infrastructure of the Internet as nothing but a puffy, white cumulonimbus cloud, accepting connections and doling out information as it floats.

What cloud computing is not about is your hard drive. When you store data on or run programs from the hard drive, that's called local storage and computing. Everything you need is physically close to you, which means accessing your data is fast and easy, for that one computer, or others on the local network. Working off your hard drive is how the computer industry functioned for decades; some would argue it's still superior to cloud computing, for reasons I'll explain shortly.

The cloud is also not about having a dedicated network attached storage (NAS) hardware or server in residence. Storing data on a home or office network does not count as utilizing the cloud. (However, some NAS will let you remotely access things over the Internet, and there's at least one NAS named "My Cloud," just to keep things confusing.)

For it to be considered "cloud computing," you need to access your data or your programs over the Internet, or at the very least, have that data synchronized with other information over the Web. In a big business, you may know all there is to know about what's on the other side of the connection; as an individual user, you may never have any idea what kind of massive data-processing is happening on the other end. The end result is the same: with an online connection, cloud computing can be done anywhere, anytime.

Consumer vs. Business
Let's be clear here. We're talking about cloud computing as it impacts individual consumers—those of us who sit back at home or in small-to-medium offices and use the Internet on a regular basis.

There is an entirely different "cloud" when it comes to business. Some businesses choose to implement Software-as-a-Service (SaaS), where the business subscribes to an application it accesses over the Internet. (Think Salesforce.com.) There's also Platform-as-a-Service (PaaS), where a business can create its own custom applications for use by all in the company. And don't forget the mighty Infrastructure-as-a-Service (IaaS), where players like Amazon, Microsoft, Google, and Rackspace provide a backbone that can be "rented out" by other companies. (For example, Netflix provides services to you because it's a customer of the cloud-services at Amazon.)

Of course, cloud computing is big business: The market was already generating $100 billion a year in 2012. It could be $270 billion by the year 2020.

Source : http://asia.pcmag.com/networking-communications-software-products/2919/feature/what-is-cloud-computing

Monday, February 15, 2016

create web using google drive

 create web using google drive

in this post I want to show how to create a website using google drive facilities. If you are learning to create a website especially static pages using html, this is very helpful for you. but this facility is only in use for static pages because no database is provided.for wanting to try but have not been able to understand the programming language HTML, you can download a free html template for web testing in google drive

we try now, follow these steps :
  1. visit and login account google drive Google Drive

    create web using google drive
  2. click new, then chose folder
    create web using google drive

  3. Type your name folder, and then open your folder would you use for web pages

    create web using google drive
  4. if you don't have web html you can download free on the web http://templated.co/

    create web using google drive
  5. after you download file html, please ekstact zip file

    create web using google drive
  6. upload all file to directory on your google drive, and wait to finish

    create web using google drive
  7. right click direcotory web, click share

    create web using google drive
  8. and then click advance, 
    create web using google drive

  9. you will see bellow, click change
    create web using google drive

  10. chose On - Public On The Web

    create web using google drive
  11. Copy Url
    create web using google drive

    example: https://drive.google.com/folderviewid=0Bwkza_2xUccoT01Ka1ZwX2RqSWM&usp=sharing
    copy text block red, and paste after following url
    https://googledrive.com/host/ 
    So :

  12. And you will see your website
    create web using google drive

Sunday, February 14, 2016

GET RDP WINDOWS 1 month FREE 2016

GET RDP WINDOWS 1 month FREE 2016
What is RDP? RDP is a Service protocol that allows a user to connect to a computer running Microsoft Terminal Services. RDP is designed to support many different types of network topologies such as IPX, NetBIOS, or TCP/IP. rdp are also available in Linux such as Ubuntu, Debian, CentOS, etc.

okay, we will see how to get free RDP Windows 1 month free, rdp trial was provided by a company called AppOnFly. this company This company is engaged in the cloud, the product can be viewed on his website http://apponfly.com
  1. First Step visit http://apponfly.com
  2. Scroll down, chose and click Google Chorem, Mozilla Thunderbird, or Apache Open OfficeGET RDP WINDOWS 1 month FREE 2016
  3. then click Try One Month Free

    GET RDP WINDOWS 1 month FREE 2016
  4. and Enter Email, then click " Start Free Trial "
    GET RDP WINDOWS 1 month FREE 2016
  5. Please wait, there will be a new browser window, please close

    GET RDP WINDOWS 1 month FREE 2016
  6. and will appear as below,
    GET RDP WINDOWS 1 month FREE 2016
  7. click Download Setup File, Save File RDP
    GET RDP WINDOWS 1 month FREE 2016

  8. you will see username and password for login RDP
    GET RDP WINDOWS 1 month FREE 2016

  9. open the file downloaded

    GET RDP WINDOWS 1 month FREE 2016
  10. enter password, and click OK
    GET RDP WINDOWS 1 month FREE 2016
  11. RDP will Open

    GET RDP WINDOWS 1 month FREE 2016
Thank's for read my tutorial, I am sorry for my english is very bad, because I am still learning :)

Saturday, February 13, 2016

How to Get SSL Certified 1 year for FREE

How to Get SSL Certified 1 year for FREE
 okay, now i will show you how to get " SSL Certificate " Free 1 Year, if you don't understand What Is SSL Certificate i will explain in brief what it SSL Certificate.

SSL Certificate is used to secure the traffic data transmission are in a web, such as credit cards, passwords, and all data that is personal, to prevent theft of data when conducting online transactions, SSL is suitable applied in online shop. With the SSL Certificate, data is encrypted before transmission over the Internet. Data that has been encrypted can be decoded only by the server. It is a guarantee that the information you send to the website will not be stolen or vandalized.

it's a little explanation about ssl certificate, now, we go to tutorial " How to get SSL Certified 1 year for free "
  1. Visit Link Get SSL Certified 1 year for free
  2. Click Sign UP
    How to Get SSL Certified 1 year for FREE
  3.  Select Country, and input your mail, then Click Send Verification Code
    How to Get SSL Certified 1 year for FREE
  4. Open your mail, and see email from StartSSL.com, you will see Verification Code,
    How to Get SSL Certified 1 year for FREE
  5. Copy Verification Code, and paste to Form, and click SIGN UP
    How to Get SSL Certified 1 year for FREE
  6. Next, StartSSL will make Private key form your browser, please wait...
    How to Get SSL Certified 1 year for FREE
  7. now will appear Caution  , Restart your browser to start login
    How to Get SSL Certified 1 year for FREE
  8. reopen StartSSL.com and click login, then click "Authenticate"
    How to Get SSL Certified 1 year for FREE
  9. and will appear caution, and click Oke
    How to Get SSL Certified 1 year for FREE
  10. now you will redirect to dashboard
    How to Get SSL Certified 1 year for FREE
  11. to get SSL Certified, Click Validation Wizar, chose domain validation , and click Continue
    How to Get SSL Certified 1 year for FREE
  12. enter your domain name, and click continue
    How to Get SSL Certified 1 year for FREE
  13. then startssl will send a verification code to the email associated with that domain, select the active e-mail, and click " Send Verification Code ",
    How to Get SSL Certified 1 year for FREE
  14. open email , copy verification code and paste to form, click validation
  15. enter url address in the textarea , example :
    blog.domain.com
    email.domain.com
    download.domain.com

    How to Get SSL Certified 1 year for FREE
  16. and submit Your certificate  Signing Request (CSR), get CSR on your cpanel,How to Get SSL Certified 1 year for FREE
  17. now click button bellow and get your ssl fee for 1 year,