what is dns in networking?
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The Domain Name System resolves the names of internet sites with their underlying IP addresses adding efficiency and even security in the process. ... At its most basic, DNS is a directory of names that match with numbers. The numbers, in this case are IP addresses, which computers use to communicate with each other.
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DNS and Active Directory Active Directory is built on DNS. DNS namespace is used internet wide while the Active Directory namespace is used across a private network. The reason behind the choice of DNS is that it is highly scalable and it is an internet standard.
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A DNS hostname is a name that uniquely and absolutely names a computer; it's composed of a host name and a domain name. DNS servers resolve DNS hostnames to their corresponding IP addresses.
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What is a DNS NS record? NS stands for 'name server' and this record indicates which DNS server is authoritative for that domain (which server contains the actual DNS records). A domain will often have multiple NS records which can indicate primary and backup name servers for that domain.
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NS stands for 'name server' and this record indicates which DNS server is authoritative for that domain (which server contains the actual DNS records). A domain will often have multiple NS records which can indicate primary and backup name servers for that domain. Example of an NS record: example.com.
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TCP/IP uses IP addresses to communicate, and a DNS server resolves oblect to IP addresses for all the transmission based items your network needs to communicate with, like PC's, servers, printers, etc. A domain controller on the other hand holds all of the other information about everything in your network.
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When you enter a domain name in your web browser, it first sends a request to a global network of servers that form the Domain Name System (DNS). These servers then look up for the name servers associated with the domain and forward the request to those name servers.
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About IP addresses Network devices use IP addresses to communicate with each other. The Internet uses DNS (Domain Name System) to enable people to use words instead of numbers for Internet addresses. You can think of DNS as an Internet address book, mapping domain names to IP addresses.
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Forward DNS lookup is using an Internet domain name to find an IP address. Reverse DNS lookup is using an Internet IP address to find a domain name. ... An Internet facility that lets you do either forward or reverse DNS lookup yourself is called nslookup.
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['Prerequisites. ... ', 'Configure Primary Server Networking. ... ', 'Configure Secondary Server Networking. ... ', 'Install BIND on the Primary DNS Server. ... ', 'Configure the Primary DNS Server. ... ', 'Install BIND on the Secondary Server. ... ', 'Configure the Secondary DNS Server. ... ', 'Test DNS Using Ubuntu Client.']
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A domain name is the address where Internet users can access your website. A domain name is used for finding and identifying computers on the Internet. Computers use IP addresses, which are a series of number. However, it is difficult for humans to remember strings of numbers.
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DNS Resolution Process for CNAME Records A DNS client (such as a browser or network device) requests the address www.example.com, and a DNS request is created. A DNS resolver receives the request and finds the Authoritative Name Server that holds the DNS Zone file with DNS records for the “example.com” domain.
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What Is Reverse DNS? The purpose of DNS is typically used to resolve a domain name to an IP address. This act is known as a forward resolution and is performed every time you visit a site on the internet. Reverse DNS (or rDNS), as its name implies, is a method of resolving an IP address back to a domain name.
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The DNS-over-HTTPS protocol works by taking a domain name that a user has typed in their browser and sending a query to a DNS server to learn the numerical IP address of the web server that hosts that specific site. ... Further, a secondary feature of DNS-over-HTTPS is that the protocol works at the app level.
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1) Which one of the following uses UDP as the transport protocol? DNS primarily uses User Datagram Protocol (UDP) on port number 53 to serve requests. DNS queries consist of a single UDP request from the client followed by a single UDP reply from the server.
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Hey Amir, An IP address is an address assigned to any computer (including servers) to identify it on a given network. A DNS address is a Domain Name Service which is used to convert alphabetic references into a server's IP address generally for hosting services. ... An example of a DNS name is "ns1.godaddy.com".
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Web browsers interact through Internet Protocol (IP) addresses. DNS translates domain names to IP addresses so browsers can load Internet resources. Each device connected to the Internet has a unique IP address which other machines use to find the device.