Problème Bind: error (network unreachable) resolving

[Recif]

Bonjour,

J'ai des soucis DNS sur mon serveur dédié Linux (Bin9). Les logs syslog et dameon sont remplis de:

Jan 27 19:37:41 de929 named[14354]: error (network unreachable) resolving 'B.ROOT-SERVERS.NET/AAAA/IN': 2001:500:2f::f#53
Jan 27 19:37:41 de929 named[10820]: error (network unreachable) resolving 'fb.mail.gandi.net/A/IN': 2001:dc3::35#53
Jan 27 19:37:41 de929 named[10820]: error (network unreachable) resolving 'symailserver.hsbc.co.uk/A/IN': 2001:503:c27::2:30#53
Jan 27 19:37:41 de929 named[10820]: error (network unreachable) resolving 'symailserver.hsbc.co.uk/A/IN': 2001:dc3::35#53
Jan 27 19:37:41 de929 named[10820]: error (network unreachable) resolving 'symailserver.hsbc.co.uk/A/IN': 2001:500:1::803f:235#53
Jan 27 19:37:41 de929 named[14354]: error (network unreachable) resolving 'email-cible.net/MX/IN': 2001:503:c27::2:30#53
Jan 27 19:37:41 de929 named[14354]: error (network unreachable) resolving 'email-cible.net/MX/IN': 2001:500:3::42#53
Jan 27 19:37:42 de929 named[14354]: error (network unreachable) resolving 'sfr.fr/MX/IN': 2001:503:c27::2:30#53
Jan 27 19:37:42 de929 named[14354]: error (network unreachable) resolving 'sfr.fr/MX/IN': 2001:500:3::42#53
Jan 27 19:37:42 de929 named[14354]: error (network unreachable) resolving 'mta.numericable.fr/A/IN': 2001:503:ba3e::2:30#53
Jan 27 19:37:42 de929 named[14354]: error (network unreachable) resolving 'a10.altospam.com/A/IN': 2001:503:ba3e::2:30#53
Jan 27 19:37:42 de929 named[14354]: error (network unreachable) resolving 'mx1.free.fr/A/IN': 2001:503:ba3e::2:30#53
Jan 27 19:37:42 de929 named[14354]: error (network unreachable) resolving 'mx.mailbox.orange-business.com/A/IN': 2001:503:ba3e::2:30#53
Jan 27 19:37:42 de929 named[14354]: error (network unreachable) resolving 'smtp-in.sfr.fr/A/IN': 2001:503:ba3e::2:30#53
Jan 27 19:37:42 de929 named[14354]: error (network unreachable) resolving 'ubest1.com/A/IN': 2001:503:ba3e::2:30#53
Jan 27 19:37:42 de929 named[14354]: error (network unreachable) resolving 'mail.promod.fr/A/IN': 2001:503:ba3e::2:30#53
Jan 27 19:37:42 de929 named[14354]: error (network unreachable) resolving 'mx1.premium.jfg-networks.net/A/IN': 2001:503:ba3e::2:30#53
Jan 27 19:37:42 de929 named[14354]: error (network unreachable) resolving 'vos-sources.com/MX/IN': 2001:503:ba3e::2:30#53
Jan 27 19:37:42 de929 named[14354]: error (network unreachable) resolving 'sanofi-aventis.com/MX/IN': 2001:503:c27::2:30#53
Jan 27 19:37:42 de929 named[14354]: error (network unreachable) resolving 'promod.fr/MX/IN': 2001:500:3::42#53
Jan 27 19:37:42 de929 named[14354]: error (network unreachable) resolving 'D.ROOT-SERVERS.NET/AAAA/IN': 2001:7fd::1#53
Jan 27 19:37:42 de929 named[14354]: error (network unreachable) resolving 'rocketmail.com/MX/IN': 2001:500:3::42#53

Récemment 2 ips ont été attribuées au serveur et l'ip d'origine n'est plus disponible (nullroutée suite à une attaque DDOS). Est ce le problème? Comme réattribuer la nouvelle adresse?

Merci

 

[Julia41]

Là je pense que c'est simplement ton bind qui est configuré pour utiliser l'IPv6 sans en avoir:
listen-on-v6 { none;};

Avec ça (named.conf.options) ça devrait le faire.

 

[Recif]

Bonjour julia41,

Non, c'est bon, on m'a aidé: c'était un problème de routage de la nouvelle ip vers l'ancienne...