Copyright © Philip M. Parker, INSEAD. Terms of Use.
| Domain | Definition |
Computing | Virtual Private Network |
Source: compiled by the editor from various references; see credits. | |
(From Wikipedia, the free Encyclopedia)
A Virtual Private Network, or VPN, is a private communications network used within a company, or by several different companies or organisations, communicating over a public network. VPN message traffic is carried on public networking infrastucture (ie, the Internet) using standard (possibly insecure) protocols.
VPNs use cryptographic tunneling protocols to provide the necessary confidentiality (preventing snooping), sender authentication (preventing identity spoofing), and message integrity (preventing message alteration) to achieve the privacy intended. When properly chosen, implemented, and used, such techniques can indeed provide secure communications over insecure networks.
Note that such choice, implementation, and use are not trivial and there are many insecure VPN schemes on the market. Users are cautioned to investigate products they propose to use very carefully. 'VPN' is a label which, by itself, provides little except a marketing tag.
VPN technologies may also be used to enhance security as a 'security overlay' within dedicated networking infrastructures.
VPN protocols include:
Source: adapted by the editor from Wikipedia, the free encyclopedia under a copyleft GNU Free Documentation License (GFDL) from the article "Virtual private network."
Crosswords: VIRTUAL PRIVATE NETWORK |
| Specialty definitions using "VIRTUAL PRIVATE NETWORK": VPN. (references) |
| Domain | Title |
References | |
Source: compiled by the editor from various references; see credits. | |
| Subject | Topic | Quote |
Business | OmniLink is a virtual private network division of Linx Holdings (a Dimension Data, Nedcor and Old Mutual joint venture company). (references) | |
Part of this service also includes Concert's LAN Direct service which uses the Internet protocol to transport data through a very fast, dedicated pipeline, he says. In essence LAN direct provides a virtual private network that allows companies to use the Internet, but have the added advantage of managed routing and security. (references) | ||
Earlier forms of value-added services included services such as toll free numbers, call-waiting, call-forwarding, voicemail, and caller ID. Recently, the emphasis has shifted towards wireless data and Internet related services such as short message system (SMS), unified messaging, Voice over IP (VoIP), Video over IP, WAP, and virtual private network. (references) | ||
Source: compiled by the editor from ICON Group International, Inc.; see credits. | ||
| The following statistics estimate the number of searches per day across the major English-language search engines as identified by various trade publications. Hyperlinks lead to commercial use of the expression at Amazon.com. |
Hexadecimal (or equivalents, 770AD-1900s) (references)56 49 52 54 55 41 4C 50 52 49 56 41 54 45 4E 45 54 57 4F 52 4B |
| Leonardo da Vinci (1452-1519; backwards) (references)
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Binary Code (1918-1938, probably earlier) (references)01010110 01001001 01010010 01010100 01010101 01000001 01001100 00100000 01010000 01010010 01001001 01010110 01000001 01010100 01000101 00100000 01001110 01000101 01010100 01010111 01001111 01010010 01001011 |
HTML Code (1990) (references)V I R T U A L   P R I V A T E   N E T W O R K |
ISO 10646 (1991-1993) (references)0056 0049 0052 0054 0055 0041 004C 0050 0052 0049 0056 0041 0054 0045 004E 0045 0054 0057 004F 0052 004B |
Encryption (beginner's substitution cypher): (references)56435254553546250524356355439248395457495245 |
| 1. Crosswords 2. Usage: Commercial 3. Quotations: Non-fiction 4. Expressions: Internet | 5. Orthography 6. Bibliography |
Copyright © Philip M. Parker, INSEAD. Terms of Use.
