The resolving name servers directly finds out information about the root servers, top level domains and authoritative name servers. It also speed up queries by caching results locallly as configured by hostmater in their domains’ TTL field. You can setup BIND 9 as caching name server to speed up dns caching for the rest of all clients. This tutorial explain – how to install BIND 9 caching only dns server under Debian Linux.
{ 3 comments }