This blog covers DNS basics, advantages, limitations, and scalability insights for how DNS filtering contributes to a strong, scalable security foundation.
As discussed in a previous blog, DNS RPZ provides IT teams and network administrators with a “DNS configuration layer”, or rewrite module, to effectively handle DNS responses with the open source domain name system software, BIND.
Since the release of BIND 9 in 2010, RPZ has proven a powerful technology for security and network management—allowing organizations to implement an additional DNS configuration layer. In fact, BIND is the most widely used Domain Name System software on the internet—making RPZ configuration options like integrating commercial feeds, blocklists, and URL databases like zveloDB™ all the more attractive. So let’s take a moment to revisit the advantages of RPZ.