; ; 2a03:a0a0::/48 - all-knowing-dns upstream zone for custom entries ; $TTL 86400 @ IN SOA ns2.commingeshautdebit.fr. dnsmaster.commingeshautdebit.fr. ( 2017011201 ; Serial 3h ; Refresh 15m ; Retry 1w ; Expire 3h ; Negative Cache TTL ) ; ; domain name servers ; @ IN NS ns1.commingeshautdebit.fr. @ IN NS ns2.commingeshautdebit.fr. ; IPv6 PTR entries (1.0.0.0.0.a.0.a.3.0.a.2.ip6.arpa.upstream.) ;1.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0 IN PTR this-is-an-example.commingeshautdebit.fr.