International Journal of Engineering Trends and Technology
Effective caching in the Domain Name System (DNS) is critical to its performance and scalability to overcome the sudden and dramatic Internet failures, natural and human disasters, frequent changes of Internet Protocol (IP) addresses and fine-grain controls for balance load distributions. The strong DNS cache consistency improves the availability and reliability of Internet services. The authors introduce a new strategy to build chains of trust from root servers to authoritative servers. The techniques they employ are based on symmetric-key cryptography. Then, In propose system a DNS security Extensions (DNSsec), running as middleware in DNS, to provide string authentication and integrity to the DNS.