Check your dns with shell - testa i tuoi dns con un comando da shell
Web tools to chechk your dns entropy - Web tool per testare l'entropia e la sicurezza dei dns che utilizzi
Web tool to check DNS vulnerability - Web tool per testare la vulnerabilità dei DNS che utilizzi
Whois Lookup and Domain Suggestions
OpenDNS uses its distributed network of DNS servers to speed up your Internet experience, increase reliability, improve security and make DNS smarter
a paper on fault-tolerant dns load balancing
European Open Root Server Network with IPv6 Support
Report: Indian gov blocks Blogspot, Typepad, Geocities blogs
a way of using familiar DNS programming interfaces, packet formats and operating semantics, in a small network where no conventional DNS server has been installed
a way of using standard DNS programming interfaces, servers, and packet formats to browse the network for services