The Universal encyclopedia gives as its definition: “network technology that allows an extension of the local network over a public or non-controlled network as for example Internet”. “In statistics is known as the negative predictive value of a diagnostic test”. “In economy is known [with this word] the net present value or net present value of an investment.”
This acronym is also used to refer to the virtual page number, used in virtual memory.
Moreover, as the acronym for Virtual Private Network as an extension of the local network is which allows a computer to send and receive data on public or shared networks as if it were a private in terms of safety and its management. To achieve this is made a virtual connection point to point through encryption, dedicated connections or combining both possibilities.
Its use is recommended for organizations such as companies, universities in order to expand the connectivity of safe and inexpensive way of their offices or units with remote users via an Internet access supplied by a third party, without doing it through dedicated WAN links or dial-up.
It is a way also reducing WAN bandwidth costs, and in turn allows the increase in connection speed using a high bandwidth using the Internet such as DSL, cable or Ethernet connectivity.
Also has a large security through encrypted IP security or tunnels vpn Secure Sockets Layer (SSL) and technologies of authentication, in this way the data is protected against unauthorized access, when they are transmitted via Virtual Private Network.
The types of connections of this type include:
-remote access where users or providers are connected with the company from remote locations as Officinal in trade, hotels, homes, etc., prepared aircraft using the Internet as access link.
-in point to point which is used for the connection of remote offices with the headquarters of the organization.
-the LAN over which is a variant of remote access, which employs the same enterprise LAN local area network (see here for more) and serves to isolate areas and services on the internal network.
-the tunneling is the encapsulation of a network over another protocol creating in this way a tunnel within a computer network.
Virtual private network, VPN.
“From the office in Bagladesh they are communicating daily via vpn with the headquarters in New York to keep them aware of the costs of inputs in the production of the goods”. Refers in this case to the point-to-point connection within an organization.
“Is is calculating the NPV of the purchase of steel that is ahead.” It applies here, referring to the net present value of an investment.
“Already in the Tokyo hotel could communicate with the company to discuss the novelties of the negotiation via vpn”. In this example, used with the sense of the network that intercoms enterprise with remote users.
Operation and Openvpn Configuration on Mobile Devices (Android and Ios)
Not only VPN connections are used to “camouflage” our IP address by assigning us an address belonging to another country or location, allowing us to access resources or inaccessible pages from our country of origin. VPN (Virtual Private Network) technology is much more than that, and is mainly used in business environments where it is necessary to establish a common network to access some resources shared from different physical locations. This allows to connect virtually different offices/branches and even devices of mobile agents, using only an Internet connection.
OpenVPN is a VPN solution that uses the standard SSL/TLS to encrypt the exchange of data and includes several features that give it a high level of safety, supporting extensive options of configuration, all under open source GPL license.
OpenVPN for Mobile Android and iOS
OpenVPN allows us not only to connect via desktops and laptops, but it also has its corresponding mobile VPN clients, such as Android and iOS.
How to install OpenVPN on Android
In order to enjoy the advantages of a connection VPN from our phone or tablet is necessary to previously install and correctly configure the OpenVPN for mobile client. It is not a very complicated process, but it requires that we devote the time necessary for its correct operation.
In the following example we see How to install OpenVPN on an Android device. In the case of iOS, the process is virtually identical.
First of all, download and install OpenVPN Connect to Android/iOS client.
WP-Appbox: OpenVPN Connect (Free, Google Play) →
WP-Appbox: OpenVPN Connect (Free, App Store) →
We need to establish a VPN connection from your mobile:
A profile of OpenVPN.
A server to which to connect (Server data come into the config file).
The OpenVPN profile is saved in a file with extension . ovpn. Therefore, the first step is to export the configuration to your Android device .ovpn file. If we do not have the mentioned file you will have to request it from the network administrator.
If we are forced to create file ourselves we can use the following template as a base, or consult the following Forum where you will find several indications that can help us to create the mentioned file.
Important: keep in mind that next to the .ovpn file, we have to have security and encryption certificates (. ca, .crt, .key) located in the same folder of the terminal.
To load the file .ovpn go to “Menu – > Import – > Import Profile from SD card” and select the file .ovpn that you just copied.
Other methods to import a profile. ovpn:
If you have an account on an OpenVPN Access Server, we can import the file directly from the Access Server. To do this we are going to “Menu – > Import – > Import Access Server Profile”.
If we have an account in a private tunnel (Private Tunnel) service we can import profile from “Menu – > Import – > Import Private Tunnel Profile”).
Once imported OpenVPN profile will see a message on the screen indicating “Profile successfully imported”.
Then select the server you want to connect to (if there is only one leave as is) and we introduce our username and password for access to the network. Click on “Connect”.
Then it will skip us a message requesting a security certificate. If your connection does not require any certificate simply click on “Continue”.
Established connection! If all goes well we will see a message with status and connection information.
At the time that you want to disconnect the VPN only we have to click on “Disconnect”.
If you have any questions or problems when you set up and configure the connection can go to the following link from the official website of OpenVPN with useful information and FAQs on connections OpenVPN Android.