Mirroring Resources in the World Wide Web

• Autor(a) principal: Brasileiro,Francisco Vilar
• Data de Publicação: 1998
• Outros Autores: Fonsêca,Tércio E. de Albuquerque, Costa,Raquel Meneses da
• Tipo de documento: Artigo
• Idioma: eng
• Título da fonte: Journal of the Brazilian Computer Society
• Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0104-65001998000300007

One of the main problems faced by the users and service providers of the World Wide Web is that of a broken link in a hypertext, normally caused by the unavailability of a particular resource. The introduction of redundancy is the key mechanism to solve this problem. Unfortunately, the current infrastructure of the Web is based on a resource identification scheme that maps a resource identifier on a unique physical location; this scheme does not favour the implementation of a support for the replication of Web resources. In this paper we discuss how URNs (Uniform Resource Names), a resource identification scheme proposed by a special work group of the Internet Engineering Task Force (IETF), can be employed to implement a support for the mirroring of Web resources. Our proposal is based on the implementation of a proxy and a gateway that together allow conventional browsers and servers to access and manage mirrored resources transparently, allowing the provision of highly available Web resources