A statement on Akamai's customer site said the company "is aware of a service interuption earlier today affecting content delivery. We have identified the root cause and have implemented the fix. Issues retrieving content should be decreasing or resolved." The language hints at a technical problem rather than a distributed denial of service attack (DDoS), which had been the focus of early speculation. The size of Akamai's network - reports range from 12,000 to 15,000 servers - would seem to make such an attack unlikely.Continue reading
Everyone has encountered the problem, which manifests itself as the dreaded "404 page not found" message. The trouble is that changes in site design, file directories and domain names can easily make a URL obsolete, with no means of automatically redirecting to the new Internet location (where it exists). What is needed is a standard way of permanently naming a digital resource similar to that provided by the International Standard Book Number (ISBN) for analogue books.
The solution is to move from URLs to URNs: Uniform Resource Names. The important thing about URNs is that they do not point directly to an Internet resource, but are rather a placeholder for the location and other metadata. This means that the URN does not need to change if the URL does: it is enough to update the redirection.
URNs sound great in theory. Unfortunately, progress towards realising them has been slow. One attempt to address what is sometimes called linkrot is the use of PURLs: Persistent URLs. This employs redirection to solve the problem of changes in directory structure, but is basically an adaptation of the URL. More thoroughgoing in its attempt to create full URNs is the Handle system.
This was devised by Robert Kahn, co-inventor of the TCP/IP protocols, and currently President of the Corporation for National Research Initiatives (CNRI). The CNRI site has plenty of information on handles, including a FAQ, articles, papers, full documentation and three related RFCs (3650, 3651, 3652). CNRI also runs a free public handle service for those who wish to try out the system before installing the free server software locally. There is also client software that lets Windows browsers resolve handles directly, and some examples of what handles look like in practice.Continue reading
"This is a broad subpoena that effectively asks for every single document about the GPL and enforcement of the GPL since 1999," Bradley Kuhn said in the FSF's statement. "They also demand every document and email that we have exchanged with Linus Torvalds, IBM, and other players in the community. In many cases, they are asking for information that is confidential communication between us and our lawyers, or between us and our contributors." Continue reading
Microsoft has started a new campaign to attract customers to Windows Server 2003 called TryIIS. This campaign is supported by a web site, www.TryIIS.com which was launched last Monday with marketing, evaluations and case studies.
Windows Server 2003 was launched just over a year ago and has seen some strong growth over that time. In the May Netcraft Web Server Survey 2.1M hostnames were identified on Windows Server 2003, with a gain of 390K hostnames since April 2004. Around 50% of these are new sites, while just under 100,000 have migrated from Linux.
Comparing Windows Server 2003 of Windows 2000 shows them to have quite similar adoption rates, as shown in the graph below:
But the new center, which will be able to hold 12,000 servers, isn't large enough to solve The Planet's long-term needs. At the company's current growth rate, the new site will likely be filled within nine months, according to chief operating officer Lance Crosby.
"We continue to scour Dallas and other major market locations for prime data center space," said Crosby. "This facility is about half the space of our primary location, so it's a short-term solution, but we anticipate closing on another new deal in about 90 days."
The Planet has added more than 165,000 hostnames in 2004, growing from 123K to 289K. The number of active sites hosted by The Planet has quadrupled in the past eight months:
The RIAA site was offline from March 17-24 due to the effects of MyDoom.F, which at its height was estimated to have infected as many as 45,000 machines, according to antivirus vendors.
A dynamically updating graph of the sites targeted for DDoS by various MyDoom variants is available here.