On 09.02.2014 04:19, James Pifer wrote: > I'm having problems where my upstream bandwidth is being saturated. > I've > narrowed it down to a DNS issue of some type. If I stop the named > service then my bandwidth drops to "normal" according to my untangle > firewall. Your dns server may be used in a reflection/amplification attack, is it an open resolver? Read e.g. http://www.mill-yard.com/2013/07/centos-bind-blocking-dns-reflection-or-amplification-ddos-attacks-using-recursive-dns-lookups/ -- Sent from the Delta quadrant using Borg technology! Nux! www.nux.ro