CentOS bind IPv6 설정 제거

CentOS bind IPv6 설정 제거

/var/log/message 에 아래 메시지가 보인다.

Jan 28 03:55:15 xoneasy named-sdb[1213]: error (network unreachable) resolving 'dlv.isc.org/DNSKEY/IN': 2001:4f8:0:2::20#53 Jan 28 03:55:15 xoneasy named-sdb[1213]: error (network unreachable) resolving 'ari.beta.aridns.net.au/A/IN': 2001:dcd:3::5#53 Jan 28 03:55:15 xoneasy named-sdb[1213]: error (network unreachable) resolving 'ns.isc.afilias-nst.info/A/IN': 2a01:8840:6::1#53 Jan 28 03:55:15 xoneasy named-sdb[1213]: error (network unreachable) resolving 'ari.beta.aridns.net.au/AAAA/IN': 2001:dcd:3::5#53 Jan 28 03:55:15 xoneasy named-sdb[1213]: error (network unreachable) resolving 'ns.isc.afilias-nst.info/AAAA/IN': 2a01:8840:6::1#53 Jan 28 03:55:15 xoneasy named-sdb[1213]: error (network unreachable) resolving 'dlv.isc.org/DNSKEY/IN': 2001:500:60::29#53 Jan 28 03:55:15 xoneasy named-sdb[1213]: error (network unreachable) resolving 'ns.isc.afilias-nst.info/A/IN': 2a01:8840:8::1#53 Jan 28 03:55:15 xoneasy named-sdb[1213]: error (network unreachable) resolving 'ns.isc.afilias-nst.info/AAAA/IN': 2a01:8840:8::1#53 Jan 28 03:55:15 xoneasy named-sdb[1213]: error (network unreachable) resolving 'ns.isc.afilias-nst.info/A/IN': 2a01:8840:7::1#53 Jan 28 03:55:15 xoneasy named-sdb[1213]: error (network unreachable) resolving 'ns.isc.afilias-nst.info/AAAA/IN': 2a01:8840:7::1#53 Jan 28 03:55:15 xoneasy named-sdb[1213]: error (network unreachable) resolving 'ari.delta.aridns.net.au/A/IN': 2001:dcd:2::2#53 Jan 28 03:55:15 xoneasy named-sdb[1213]: error (network unreachable) resolving 'ari.delta.aridns.net.au/A/IN': 2001:dcd:1::2#53 Jan 28 03:55:15 xoneasy named-sdb[1213]: error (network unreachable) resolving 'ari.delta.aridns.net.au/A/IN': 2001:dcd:3::2#53 Jan 28 03:55:15 xoneasy named-sdb[1213]: error (network unreachable) resolving 'ari.delta.aridns.net.au/A/IN': 2001:dcd:4::2#53

원인 : IPv4 환경 서버에서 bind를 구동하면 IPv6기반 통신을 하지 못해서 에러가 발생
해결 : IPv4 환경으로만 접속하도록 수정

    /etc/named.conf (chroot설정이라면 /var/named/chroot/etc/named.conf)의 다음줄 주석처리

// listen-on-v6 port 53 { ::1; };

    /etc/sysconfig/named 마지막줄에 다름추가(6으로 바꾸면 IPv6로 동작)

OPTIONS="-4"

    서버 재구동

service named restart