![]() | gral.re. | |||
![]() | ns.gral.re. | 213.251.165.121 | ||
![]() | ns1.interlug.net. | 91.121.156.76 | ||
L'hôte ne répond pas aux requêtes ICMP (présence d'un pare-feu?)
Le serveur n'écoute pas ou ne répond pas en UDP sur le port 53The DNS assumes that messages will be transmitted as datagrams or in a byte stream carried by a virtual circuit. While virtual circuits can be used for any DNS activity, datagrams are preferred for queries due to their lower overhead and better performance.