While it is important for network administrators to secure any host connected to the Internet, they must give name servers special consideration due to the important role they play. The purpose of this document is to outline some common steps that can be taken to secure an Internet Name Server from various types of attacks. Run a new version of your name server software As with any piece of software, name server software evolves with each release. Virtually all older name servers have widely known vulnerabilities that can be exploited. Vulnerabilities that appear in one version are usually fixed in subsequent releases
