tailieunhanh - 03 - Wireshark - DNS

| Computer Networking LAB 3 - DNS F V S __ rxi 1 M M DOMAIN NAME SYSTEM X The Domain Name System DNS translates hostnames to IP X A client sends a query to its local DNS server and receives a response back X The hierarchical DNS servers communicate with each other to either recursively or iteratively resolve the client s DNS query 2 1. NSLOOKUP JI Jr Jr Jr V I X nslookup tool allows the host running the tool to query any specified DNS server for a DNS record X The queried DNS server can be a root DNS server a top-level-domain DNS server an authoritative DNS server or an intermediate DNS server