IMPORTANT: Per accedir als fitxer de subversion: http://acacha.org/svn (sense password). Poc a poc s'aniran migrant els enllaços. Encara però funciona el subversion de la farga però no se sap fins quan... (usuari: prova i la paraula de pas 123456)

This memo describes errors often found in both the operation of
  Domain Name System (DNS) servers, and in the data that these DNS
  servers contain.  This memo tries to summarize current Internet
  requirements as well as common practice in the operation and
  configuration of the DNS.  This memo also tries to summarize or
  expand upon issues raised in [RFC 1537].
http://www.ietf.org/rfc/rfc1912.txt

Vegeu Servidor_DNS#Cache