Bind 9 – error (network unreachable) – Centos 7

Après avoir installé Bind sur un centos 7, j’ai eu ces erreurs :

Sep 10 09:28:09 lnx261403P named[21321]: error (network unreachable) resolving ‘dlv.isc.org/DNSKEY/IN’: 2001:500:f::1#53
Sep 10 09:28:09 lnx261403P named[21321]: error (network unreachable) resolving ‘dlv.isc.org/DNSKEY/IN’: 2001:500:48::1#53
Sep 10 09:28:09 lnx261403P named[21321]: error (network unreachable) resolving ‘dlv.isc.org/DNSKEY/IN’: 2001:500:b::1#53
Sep 10 09:28:09 lnx261403P named[21321]: error (network unreachable) resolving ‘dlv.isc.org/DNSKEY/IN’: 2001:500:40::1#53
Sep 10 09:28:09 lnx261403P named[21321]: error (network unreachable) resolving ‘dlv.isc.org/DNSKEY/IN’: 2001:500:e::1#53
Sep 10 09:28:10 lnx261403P named[21321]: error (network unreachable) resolving ‘dlv.isc.org/DNSKEY/IN’: 2001:4f8:0:2::19#53
Sep 10 09:28:10 lnx261403P named[21321]: error (network unreachable) resolving ‘dlv.isc.org/DNSKEY/IN’: 2001:500:60::30#53
Sep 10 09:28:10 lnx261403P named[21321]: error (network unreachable) resolving ‘ns.isc.afilias-nst.info/A/IN’: 2001:500:2d::d#53
Sep 10 09:28:10 lnx261403P named[21321]: error (network unreachable) resolving ‘ns.isc.afilias-nst.info/AAAA/IN’: 2001:500:2d::d#53
Sep 10 09:28:10 lnx261403P named[21321]: error (network unreachable) resolving ‘ns.isc.afilias-nst.info/A/IN’: 2001:500:1a::1#53
Sep 10 09:28:10 lnx261403P named[21321]: error (network unreachable) resolving ‘ns.isc.afilias-nst.info/A/IN’: 2001:500:19::1#53
Sep 10 09:28:10 lnx261403P named[21321]: error (network unreachable) resolving ‘ns.isc.afilias-nst.info/AAAA/IN’: 2001:500:19::1#53
Sep 10 09:28:10 lnx261403P named[21321]: error (network unreachable) resolving ‘ns1.isc.ultradns.net/A/IN’: 2001:500:2f::f#53
Sep 10 09:28:10 lnx261403P named[21321]: error (network unreachable) resolving ‘ns1.isc.ultradns.net/AAAA/IN’: 2001:500:2f::f#53
Sep 10 09:28:10 lnx261403P named[21321]: error (network unreachable) resolving ‘ns2.isc.ultradns.net/A/IN’: 2001:500:2f::f#53
Sep 10 09:28:10 lnx261403P named[21321]: error (network unreachable) resolving ‘ns2.isc.ultradns.net/A/IN’: 2610:a1:1014::e8#53
Sep 10 09:28:10 lnx261403P named[21321]: error (network unreachable) resolving ‘ns1.isc.ultradns.net/A/IN’: 2610:a1:1014::e8#53
Sep 10 09:28:10 lnx261403P named[21321]: error (network unreachable) resolving ‘ns1.isc.ultradns.net/AAAA/IN’: 2610:a1:1014::e8#53
Sep 10 09:28:10 lnx261403P named[21321]: error (network unreachable) resolving ‘pdns196.ultradns.info/A/IN’: 2001:500:41::1#53
Sep 10 09:28:10 lnx261403P named[21321]: error (network unreachable) resolving ‘pdns196.ultradns.info/AAAA/IN’: 2001:500:41::1#53

Solution : ( Désactivation IPv6 )

Editez le fichier /etc/named.conf et ajouter dans la section options :

listen-on-v6 port 53 { none; };

Puis éditez le fichier /etc/sysconfig/named et ajout la ligne :

OPTIONS="-4"

Puis redémarrer named :

service named restart