DNS server reported an error and shut down IPv6 and directory permissions

1、ipv6
[root@dns02 ~]# tail -f /var/log/messages Apr 19 10:17:27 localhost named[5470]: error (network unreachable) resolving ‘. /NS/IN’: 2001:503:ba3e::2:30#53

Apr 19 10:17:27 localhost named[5470]: validating @0x7fc4bc0008c0: . NS: no valid signature found

Apr 19 10:17:27 localhost named[5470]: error (no valid RRSIG) resolving ‘. /NS/IN’: 192.58.128.30#53

Apr 19 10:17:27 localhost named[5470]: error (network unreachable) resolving ‘. /NS/IN’: 2001:7fd::1#53

Apr 19 10:17:27 localhost named[5470]: error (network unreachable) resolving ‘. /NS/IN’: 2001:500:1::53#53

Apr 19 10:17:29 localhost named[5470]: error (network unreachable) resolving ‘. /NS/IN’: 2001:7fe::53#53

Apr 19 10:17:29 localhost named[5470]: validating @0x7fc5240008c0: . NS: no valid signature found

Apr 19 10:17:29 localhost named[5470]: error (no valid RRSIG) resolving ‘. /NS/IN’: 192.33.4.12#53

Apr 19 10:17:31 localhost named[5470]: error (network unreachable) resolving ‘. /NS/IN’: 2001:500:12::d0d#53

Apr 19 10:17:31 localhost named[5470]: error (network unreachable) resolving ‘. /NS/IN’: 2001:500:a8::e#53

Add
[root@dns02 slaves]# cat /etc/sysconfig/named
OPTIONS=”-4″

2. Authority
Apr 19 10:40:01 localhost named[21023]: dynamic/managed-keys.bind. jnl: open: permission denied
Apr 19 10:40:01 localhost named[21023]: managed-keys-zone ./IN: keyfetch_done:dns_journal_open -> unexpected error
Apr 19 10:40:02 localhost named[20752]: managed-keys-zone ./IN: No DNSKEY RRSIGs found for ‘. ‘: success
[root@dnsmaster named]# chown -R root:named dynamic/

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