On Sat, Mar 03, 2012 at 09:24:25AM +0000, MontyRee wrote: > surely, I don't use ipv6 and "NETWORKING_IPV6=no" was configured at > /etc/sysconfig/network file.
That doesn't prevent IPv6 from being autoconfigured on an interface, it just tells the initscripts to ignore IPv6/pretend it doesn't exist. The kernel will still do SLAAC and RA and configure interfaces with that information (at least link-local if there are no IPv6 routers on the network). To prevent SLAAC: NETWORKING_IPV6=yes IPV6INIT=yes IPV6FORWARDING=no IPV6_AUTOCONF=no IPV6_ROUTER=no IPV6_AUTOTUNNEL=no To really turn off all IPv6 you can put this in /etc/sysctl.conf: net.ipv6.conf.all.disable_ipv6 = 1 net.ipv6.conf.default.disable_ipv6 = 1 net.ipv6.conf.eth0.disable_ipv6 = 1 > How to reduce(or stop) unnecessary lots of AAAA queries? You can't, clients can decide to query whatever they want, and they may have other IPv6 connectivity to use AAAA responses with. AAAA can be queried over IPv4 just fine, just as A can be queried over IPv6. _______________________________________________ Please visit https://lists.isc.org/mailman/listinfo/bind-users to unsubscribe from this list bind-users mailing list bind-users@lists.isc.org https://lists.isc.org/mailman/listinfo/bind-users
