domain name system – POFTUT

What Is Computer Domain and Domain Name Definition?

What Is Computer Domain and Domain Name Definition?

domain is a very popular term used in computer and information technology. Users generally do not know or misinterpret the domain keyword meaning. The domain can be used in different areas of computer science. In this tutorial, we will learn Domain meaning and types with the purpose and difference with the Domain and Hosting. Domain … Read more

What Is DNS Server Or Protocol Port Number?

Domain Name System aka DNS is used to match domain names to the IP addresses. DNS is provided over the intranet and internet servers with different port numbers.DNS can use both transmission protocols TCP and UDP. But general usage is over UDP protocol because of its simplicity and speed. TCP Port 53 One of the … Read more

What Is SOA (Start Of Authority) Record and How To List?

wWDNS system provides different types of information about the domains. SOA or Start Of Authority is one type of information which provides domain and domain server related information. In this tutorial we will examine SOA record and related information. Query SOA Of A Domain We will start simply querying Domain Name SOA records withnslookup . This … Read more

What Is /etc/hosts File and How To Create and Edit It?

New comers to the Linux generally asks for what is the purpose and usage of the /etc/hosts file. /etc  directory holds system and service related configuration. hosts file is used to store host name or DNS to IP address resolution. It provides easy way to match a host or DNS name with an IP address. List Current … Read more

Popular Free DNS Services Around The World

DNS is important protocol for internet. Without DNS protocol we can not use internet effectively. DNS resolves domain and host names into IP addressees where computers and network devices can understand and operate. In recent years  DNS is used to block access to the some web sites and domain names. But internet is a free … Read more

What Is A DNS Server?

Domain Name System is a system or concept used to name hosts connected to the network. DNS is hierarchical which means there is a tree-like connection in the domain names. DNS is invented by Paul Mockapetris in 1983. What is Domain Name A domain name identifies hosts connected to the network. Domain names are unique. … Read more