From the course: Networking Foundations: Protocols and CLI Tools

Unlock the full course today

Join today to access over 24,800 courses taught by industry experts.

DNS and NetBIOS in your environment

DNS and NetBIOS in your environment - Windows Server Tutorial

From the course: Networking Foundations: Protocols and CLI Tools

Start my 1-month free trial Buy for my team

DNS and NetBIOS in your environment

“

- [Instructor] The Domain Name System is what translates your favorite domain names into IP addresses. A domain name is something like gregsowell.com. It was first designed at the University of California, Irvine, in 1983. It's designed to be a hierarchical distributed system that's capable of translating the massive amounts of requests required by the internet or within a small private network. If a client wants to resolve gregsowell.com, it will first check its DNS cache. The DNS cache is a portion of memory that temporarily stores domain name to IP mappings that have already been queried. If it does have it cached, it will simply use that address. If it does not, it will begin the lookup process. To do name resolution, an admin must first specify which DNS servers to use on their client machines. When a host does a lookup, it will send a UDP packet to port 53 on the DNS server asking for resolution of a domain name. If…

Contents