It stands for Virtual Private Network. A technology that allows remote access to a computer network and its resources. It is a safe path from network to another by means of tunneling.
Before VPN
P2P access (unsecure)
Leased lines through telecommunications providers (costly)
Dial up (slow and costly)
Types of VPN
Intranet VPN – provides virtual circuits between organization offices over the internet
Extranet VPN – about the same as an intranet except it connects several organizations (for example customers and suppliers)
Access VPN – allows employees to access an organizations network from a remote location, thus utilizing that network’s resources such as printers, email, file sharing, etc. Virtual private networking creates a secure path between the sender and the receiver through a public network, such as the internet using a secure technique called tunneling
Advantages
Access distant computers and networks remotely
Very secure
VPN saves a lot of money for the user and the companies
Easier to access and manage
Flexibility
Disadvantages
Administration overhead
Internet is unreliable
Compared to a leased line (compared to a leased line)
Additional knowledge or training required to implement a reliable
VPN infrastructure (difficulty depends on equipment used)
Loss in efficiency due to multiple layers of encapsulation
Teasing a segment on the “gesture everyone seems to interpret differently,” Fox News’ E.D. Hill said: “A fist bump? A pound? A terrorist fist jab? … We’ll show you some interesting body communication and find out what it really says.” In the ensuing discussion with a “body language expert,” Hill referred to the “Michelle and Barack Obama fist bump or fist pound,” but at no point did she explain her earlier reference to “a terrorist fist jab.”
So, for the past year and a half I’ve been having lots of little, but yet bothersome, backaches, along with a progressively uncomfortable stiffness around my neck and shoulders. I finally figured I should do something about it, since it’s become pretty much unbearable. I’m currently doing Physical Therapy to correct the problem. One of the techniques I’ve been recommended to do at home, is simply amazing. It’s called the Alexander Technique: Constructive Rest
It basically consists of laying on your back for 15 minutes with a couple of books supporting your head, like described in the image bellow.
Is this technique for you?
Do you have a backache or stiff neck and shoulders?
Do you become uncomfortable when sitting at your computer for long periods of time?
Are you a singer, musician, actor, dancer or athlete and feel you are not performing at your full potential?
If you have answered yes to any of these questions, the Alexander Technique could be of great benefit to you. It sure helps me out a lot.
More in depth definition
Constructive rest is a practice which is part of the Alexander Technique, a discipline which is designed to help people unlearn bad physical and mental habits. You do not have to subscribe to the Alexander Technique to benefit from constructive rest, however, and you can often find variations of it being advocated by an assortment of people in a variety of disciplines, from yoga to acting. Fans of constructive rest say that daily sessions create long-term benefits.
