<html><head></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font: normal normal normal 12px/normal 'Times New Roman'; ">Português a continuação]</div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font: normal normal normal 12px/normal 'Times New Roman'; ">[English will follow]</div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font: normal normal normal 12px/normal 'Times New Roman'; min-height: 15px; "><br></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font: normal normal normal 12px/normal 'Times New Roman'; ">-----------------------------------------</div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font: normal normal normal 12px/normal 'Times New Roman'; ">INFORMACIÓN IMPORTANTE</div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font: normal normal normal 12px/normal 'Times New Roman'; min-height: 15px; "><br></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font: normal normal normal 12px/normal 'Times New Roman'; ">El próximo día 5 de mayo entre las 17:00 - 19:00 UTC el servidor raíz de DNS J comenzará a servir una "Deliberately Unvalidatable Root Zone (DURZ)" como parte del proceso de la implementación de DNSSEC en la zona raíz. Este es el último de los servidores raíz del DNS en hacer la transición y al igual que con las cambios anteriores no se esperan efectos negativos al realizarse esta migración.</div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font: normal normal normal 12px/normal 'Times New Roman'; min-height: 15px; "><br></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font: normal normal normal 12px/normal 'Times New Roman'; ">Como parte del proceso de migración a DNSSEC, los paquetes de DNS transmitidos sobre UDP podrían ya no ser menores a 512 bytes como tradicionalmente se manejaba en la zona raíz. En caso de que el mensaje sea rechazado, es posible que el servidor reintente la petición usando TCP en lugar de UDP. Este cambio en el tamaño de los paquetes transmitidos por el sistema de DNS y el uso de TCP puede ocasionar problemas con algunos equipos de red como firewalls y enrutadores o incluso con algunas versiones antiguas de servidores recursivos (resolvers) de DNS.</div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font: normal normal normal 12px/normal 'Times New Roman'; min-height: 15px; "><br></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font: normal normal normal 12px/normal 'Times New Roman'; ">Para verificar la correcta operación de los "resolvers", incluyendo la red sobre la que están y si estos tienen algún problema con la respuesta aceptada por los servidores de DNS, los ISPs y operadores de redes tienen al alcance un par de herramientas:</div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font: normal normal normal 12px/normal 'Times New Roman'; min-height: 15px; "><br></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font: normal normal normal 12px/normal 'Times New Roman'; color: rgb(8, 28, 140); "><span style="text-decoration: underline"><a href="https://www.dns-oarc.net/oarc/services/replysizetest">https://www.dns-oarc.net/oarc/services/replysizetest</a></span></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font: normal normal normal 12px/normal 'Times New Roman'; color: rgb(8, 28, 140); "><span style="text-decoration: underline"><a href="http://labs.ripe.net/content/testing-your-resolver-dns-reply-size-issues">http://labs.ripe.net/content/testing-your-resolver-dns-reply-size-issues</a></span></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font: normal normal normal 12px/normal 'Times New Roman'; min-height: 15px; "><br></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font: normal normal normal 12px/normal 'Times New Roman'; ">Para más información relacionada con la versiones de software de DNS recursivo que soportan la Deliberately-Unvalidatable Root Zone (DURZ):</div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font: normal normal normal 12px/normal 'Times New Roman'; min-height: 15px; "><br></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font: normal normal normal 12px/normal 'Times New Roman'; color: rgb(8, 28, 140); "><span style="text-decoration: underline"><a href="http://www.root-dnssec.org/wp-content/uploads/2010/03/draft-icann-dnssec-resolver-testing-00.txt">http://www.root-dnssec.org/wp-content/uploads/2010/03/draft-icann-dnssec-resolver-testing-00.txt</a></span></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font: normal normal normal 12px/normal 'Times New Roman'; min-height: 15px; "><br></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font: normal normal normal 12px/normal 'Times New Roman'; min-height: 15px; "><br></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font: normal normal normal 12px/normal 'Times New Roman'; ">----------------------------------------</div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font: normal normal normal 12px/normal 'Times New Roman'; ">INFORMAÇÃO IMPORTANTE</div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font: normal normal normal 12px/normal 'Times New Roman'; min-height: 15px; "><br></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font: normal normal normal 12px/normal 'Times New Roman'; ">Na próxima quarta-feira 5 de maio das 17:00 às 19:00 UTC o servidor raíz do DNS J vai começar servir uma "Deliberately Unvalidatable Root Zone (DURZ)" como parte do processo da implementação do DNSSEC na zona raíz. Este é o último dos servidores raíz do DNS em fazer a transição e da mesma forma que com as mudanças anteriores não estão sendo esperados efeitos negativos quando for realizada essa migração.</div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font: normal normal normal 12px/normal 'Times New Roman'; min-height: 15px; "><br></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font: normal normal normal 12px/normal 'Times New Roman'; ">Como parte do processo de migração para DNSSEC, os pacotes de DNS transmitidos sobre UDP poderiam já não ser menores que 512 bytes como tradicionalmente na zona raíz. Se a mensagem for rejeitada, é possível que o servidor reintente o pedido usando TCP no lugar de UDP. Essa mudança no tamanho dos pacotes transmitidos pelo sistema de DNS e o uso de TCP pode provocar problemas em alguns equipamentos de rede como firewalls e routers ou inclusive em algumas versões antigas de servidores recursivos (resolvers) de DNS.</div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font: normal normal normal 12px/normal 'Times New Roman'; min-height: 15px; "><br></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font: normal normal normal 12px/normal 'Times New Roman'; ">Para verificar a operação correta dos “resolvers”, incluindo a rede sobre a que estão, e no caso desses tiverem algum problema com a resposta aceita pelos servidores de DNS, os ISPs e operadores de redes terão disponíveis duas ferramentas:</div><p style="margin: 0.0px 0.0px 0.0px 0.0px; font: 12.0px 'Times New Roman'; min-height: 15.0px"> <br class="webkit-block-placeholder"></p><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font: normal normal normal 12px/normal 'Times New Roman'; color: rgb(8, 28, 140); "><span style="text-decoration: underline"><a href="https://www.dns-oarc.net/oarc/services/replysizetest">https://www.dns-oarc.net/oarc/services/replysizetest</a></span></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font: normal normal normal 12px/normal 'Times New Roman'; color: rgb(8, 28, 140); "><span style="text-decoration: underline"><a href="http://labs.ripe.net/content/testing-your-resolver-dns-reply-size-issues">http://labs.ripe.net/content/testing-your-resolver-dns-reply-size-issues</a></span></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font: normal normal normal 12px/normal 'Times New Roman'; min-height: 15px; "><br></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font: normal normal normal 12px/normal 'Times New Roman'; ">Para mais informações relativas às versões de software de DNS recursivo que sustentam a Deliberately-Unvalidatable Root Zone (DURZ) acesse:</div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font: normal normal normal 12px/normal 'Times New Roman'; min-height: 15px; "><br></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font: normal normal normal 12px/normal 'Times New Roman'; color: rgb(8, 28, 140); "><span style="text-decoration: underline"><a href="http://www.root-dnssec.org/wp-content/uploads/2010/03/draft-icann-dnssec-resolver-testing-00.txt">http://www.root-dnssec.org/wp-content/uploads/2010/03/draft-icann-dnssec-resolver-testing-00.txt</a></span></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font: normal normal normal 12px/normal 'Times New Roman'; min-height: 15px; "><br></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font: normal normal normal 12px/normal 'Times New Roman'; min-height: 15px; "><br></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font: normal normal normal 12px/normal 'Times New Roman'; ">-------------------------------------</div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font: normal normal normal 12px/normal 'Times New Roman'; ">RELEVANT INFORMATION</div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font: normal normal normal 12px/normal 'Times New Roman'; min-height: 15px; "><br></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font: normal normal normal 12px/normal 'Times New Roman'; ">On May 5, between 17:00 and 19:00 UTC, as part of the process for the implementation of DNSSEC in the root zone, the “J” DNS root server will begin serving a "Deliberately Unvalidatable Root Zone (DURZ)". This is the last of the DNS root servers to make the transition and, as with previous changes, it is anticipated that the migration will not have any negative effects.</div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font: normal normal normal 12px/normal 'Times New Roman'; min-height: 15px; "><br></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font: normal normal normal 12px/normal 'Times New Roman'; ">As part of the process for migrating to DNSSEC, DNS packets transmitted over UDP may now be larger than 512 bytes (traditionally, in the case in the root zone, packets were limited to 512 bytes). If a message is rejected, the server may attempt to comply with the request once again using TCP instead of UDP. This change in the size of the packets transmitted by the DNS system and the use of TCP may cause problems with some network equipment, such as firewalls and routers, or even with some older version of DNS recursive servers (resolvers).</div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font: normal normal normal 12px/normal 'Times New Roman'; min-height: 15px; "><br></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font: normal normal normal 12px/normal 'Times New Roman'; ">In order to test the proper operation of the resolvers, including the network on which they are installed, to check whether they have any DNS reply size issues, a couple of tools are available to ISPs and network operators:</div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font: normal normal normal 12px/normal 'Times New Roman'; min-height: 15px; "><br></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font: normal normal normal 12px/normal 'Times New Roman'; color: rgb(8, 28, 140); "><span style="text-decoration: underline"><a href="https://www.dns-oarc.net/oarc/services/replysizetest">https://www.dns-oarc.net/oarc/services/replysizetest</a></span></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font: normal normal normal 12px/normal 'Times New Roman'; color: rgb(8, 28, 140); "><span style="text-decoration: underline"><a href="http://labs.ripe.net/content/testing-your-resolver-dns-reply-size-issues">http://labs.ripe.net/content/testing-your-resolver-dns-reply-size-issues</a></span></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font: normal normal normal 12px/normal 'Times New Roman'; min-height: 15px; "><br></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font: normal normal normal 12px/normal 'Times New Roman'; ">For further information on which recursive DNS software versions support the Deliberately-Unvalidatable Root Zone (DURZ):</div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font: normal normal normal 12px/normal 'Times New Roman'; min-height: 15px; "><br></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font: normal normal normal 12px/normal 'Times New Roman'; color: rgb(8, 28, 140); "><span style="text-decoration: underline"><a href="http://www.root-dnssec.org/wp-content/uploads/2010/03/draft-icann-dnssec-resolver-testing-00.txt">http://www.root-dnssec.org/wp-content/uploads/2010/03/draft-icann-dnssec-resolver-testing-00.txt</a></span></div><div><font class="Apple-style-span" color="#081C8C" face="'Times New Roman'"><span class="Apple-style-span" style="text-decoration: underline;"><br></span></font></div></body></html>