VPN
stands for virtual private network, virtual private network till.
VPN Iran like a private network using a public network such as the internet line, which can greatly reduce the cost of enterprise communications services. Internet leased line so that it can be used like encryption techniques and special communications system that provides services to corporate headquarters and branch or between branches can achieve the same effect as the private network install, more than 20-80% of the cost compared to leased lines, to reduce the is
As well as advantages, such as user's mobility and ease of network configuration. However, in order to build VPN security technology to encrypt your data must be backed.
Virtual Private Network service in the United States on U.S. Sprint and AT & T in the United States that began in the late 1980s, after spreading rapidly spread was Was introduced in the domestic VPN weakness of the security issues that were resolved as the last 98 years, and is faster and the rate of diffusion of the service.
VPN every company, every individually leased line than by sharing a public network, you want to provide leased-line services, and almost equal, while lowering the cost of departure from the ideas.
VPN encrypts the data before sending data over a public network, it is decrypted at the receiving side.
Several companies, including Microsoft, 3Com, PPTP (Point-to-Point Tunneling Protocol) is a standard protocol, proposed this protocol, the Microsoft Windows NT server built was.
Virtual Private Network
irtual private network of abbreviations.
(1) the public, or the public IP (Internet protocol) to build infrastructure within the private network. Means creating an imaginary line from the outside of the intranet (intranet) to connect to the intranet intranet users need without opening to the outside, and to allow access to the intranet. The original concept of the VPN even though you do not hold their own information networks and public data networks using built a personal network and direct operating and management that can be said.
(2) separate from the enterprise to build a private dedicated network without using a virtual private network service that can be used as build their own private network as if the network capabilities of the existing ISP. You do not need to build a network of separate and independent companies, as well as the domestic branch offices and business partners at home and abroad can provide you with information on various measures taken when the only foreign to the point where even able to connect to the Internet.
(3) standard that provides authentication and encrypted communication between the Internet site says the firewall extensions. Security is provided through the Internet users in the remote site VPN using other sites to gain access to sensitive data.
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WOW ~ ~ That's a mouthful!
Understand you going?
Your way network work, as well as those already established principle, because as you know.
Beginners understand why you look at that article to you? ^ ^
Minutes, when you look at the contents of revelation and monitoring officials now understand ^ ^ are you going?
Knowing the background to understand the principles of the VPN cause the VPN to be more easily understood.
So we have two VPN (virtual private network) from a private network before let
Private network (internal network, the internal network, and configured with the internal IP network. Means the same.)
We easily use the Internet at home, and to connect the router and its Internet connection,
If you are using more than one computer connected to the router and it's just
The internal status of the network connection will
(Part of our internal IP, private IP once or twice heard from the internal network to use the
IP.)
Companies within the same space when I saw a more significant scale, tens to hundreds of computers to the network internally
In other words, if this also is connected the internal network private network will
Party here long distances away from each other, in the same space rather than the internal network between computers
How do you build?
If you're a certain distance, if you are connected directly to the physical LAN cable or network equipment (as)
For example, the
A computer named, or the company is located in Seoul,
B is a computer or a company, which is located on Jeju Island
How do I get to two places to the internal network (VPN) to create .... ㅠ ㅠ
Both LAN cable must be connected directly to the army? Or a wireless connection?
Well as network equipment, but it can be directly connected using
That will cause the astronomical cost.
, But we think about it, A and B the region between
Numerous and invaluable internet too is like a spider's web.
Others writing geogeon geogeon I write, regardless of the huge amounts of Internet network
(As) length in between a myriad of B from A
Let's connect from A to B, if available internet Lock overflowing flies
So virtual private network refers to a system is started.
Internal network won one actually build physically realistic, but is not
Performance and effectiveness, it is actually built in the same virtual private network on which
Internal network ie network, VPN.
But conceivably use too because of security issues
Region A and VPN-related equipment and software in use
VPN related equipment and software in the B region.
If you do not solve these security problems, A -> B is passed to the data
Just as it is exposed to the external internet and data may be lost because
Can be transformed because
So,
A VPN security systems in the region, through the binary data through a network of external Internet
VPN security systems through local B that will arrive to the final destination B
Operation because the VPN security systems to each other through a network of external internet also
A <-> B mutually only be able to see each other and receiving the external approach itself is not.
Internal network, such as the role is literally
We often hear these days that it is VPN (Virtual Private Network) of
Start background and basic structure.
For those of you who have network industries, but its content is too basic if you feel
Back when first learning of the task, if you beginners who
No network side For those of you who have never ... Why I say you're using a VPN
Would become an easily understood.
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