- From: Manu Sporny <msporny@digitalbazaar.com>
- Date: Fri, 29 Aug 2008 00:57:37 -0400
Tab Atkins Jr. wrote: > On Thu, Aug 28, 2008 at 4:42 PM, Kristof Zelechovski > <giecrilj at stegny.2a.pl <mailto:giecrilj at stegny.2a.pl>> wrote: > > Ian's question was about what happens when it goes down forever, or gets > taken over, intercepted, squatted, spoofed or redirected because of a > malicious DNS. I should have known better how to ask it. The > browser cache cannot handle these cases. > > Consider the question to be asked by me as well. A host of a popular > format forgets to maintain its registration and gets squatted by a > malicious person. They pick up another url to host their schema on, but > legacy pages are still pointing to the old url and now may have poisoned > semantics. Do we have a recourse? The way we deal with this today is by using a Persistent URL (aka: URL re-direction service) such as purl.org[1] or xmlns.com[2]. We recommend that all authors use such a service for their vocabularies. This is how the Media, Audio, Video and Commerce RDF vocabularies are hosted. A URL re-direction service handles the case of if the service end-point gets hacked, lost, taken down temporarily, DNS entry changed, or messed with in any way. If any of the above happens, and you lose the original URL forever, you can post the vocabulary somewhere else on the web and change the entry in the re-direction service to point to the new location of the vocabulary. It's a fairly simple protection mechanism that is commonly used against the doomsday scenarios that each of you have outlined. You can also do a variety of other things on the client side, as Ben has pointed out. -- manu [1] http://purl.org/ [2] http://xmlns.com/ -- Manu Sporny President/CEO - Digital Bazaar, Inc. blog: Bitmunk 3.0 Website Launches http://blog.digitalbazaar.com/2008/07/03/bitmunk-3-website-launches
Received on Thursday, 28 August 2008 21:57:37 UTC