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Internet Security
By Robert Hansen Date: 08/06/2009 Preface: Intranets are intended to be secured from the outside by way of firewalls and other networking devices. Unfortunately, there has been a move towards non publicly-routable address space as a method of protection, rather than other methods of protecting private IP space. This paper will outline a number of flaws that can be exploited by an adversary because of the use of well known non publicly-routable IP address spaces. Overview: One of the principle technologies employed by enterprises is the concept of non publicly-routable IP address space (otherwise known as RFC1918 ).
Meet OpenVPN
If your company has people on the road, such as sales or technical people, a VPN is a good method for letting them access data on the company network. Many different VPN solutions can be bought, but many are free. Here, I discuss only solutions you can set up without buying a commercial VPN product.
