CentOS 5.4 の BIND が「network unreachable resolving」というログを頻繁に出していた。 # grep "named[\[0-9\]\+]: network unreachable resolving" /var/log/messages Nov 1 15:01:35 lachesis named[6563]: network unreachable resolving 'www.yahoo.co.jp/A/IN': 2001:dc2::1#53 Nov 1 15:01:35 lachesis named[6563]: network unreachable resolving 'www.yahoo.co.jp/A/IN': 2001:502:d399::245#53 Nov 1 15:01:35 lachesis named[6563]:
![CentOS 5.4 named network unreachable resolving](https://cdn-ak-scissors.b.st-hatena.com/image/square/80804b34d14c2294fb60a0e59670b6913414b456/height=288;version=1;width=512/https%3A%2F%2Fpooh.gr.jp%2Fwp-content%2Fthemes%2Fcocoon-master%2Fscreenshot.jpg)