Domain Name System (DNS) What is DNS (Domain Name System), and is DNS a protocol? A Domain Name System is a hierarchical decentralized naming system for computers and other resources connected to the internet or private networks. In use since 1985, it associates information with domain names assigned to participating entities and translates
How does Windows decide which DNS Server to use when What algorithm does Windows use to decide which DNS Server it will query in order to resolve names? Let's say I have several interfaces, all active, some with no dns server specified, some told to determine it automatically, and some with it specified manually (in interface ipv4 AND interface ipv6). DNS Tunneling: how DNS can be (ab)used by malicious actors Mar 15, 2019 How Dns Protocol Works - Hack2Secure
Nov 12, 2013
As stated in other answers, DNS can use both. When DNS was invented (around 1983), UDP was chosen as the primary transport because: * Server resources are limited (and were more restricted 40 years ago) * UDP does not require the overhead of track What layer is DNS protocol? | AnswersDrive In this way, DNS acts as a mnemonic device, making network resources easier to remember for network users. The Windows Server 2003 DNS Server and Client services use the DNS protocol that is included in the TCP/IP protocol suite. DNS is part of the application layer of the TCP/IP reference model. DNS-over-HTTPS causes more problems than it solves
Tricky question: What protocol (TCP or UDP) DNS server
tcp - Why DNS uses UDP as the transport layer protocol DNS itself uses sometimes besides UDP (as its primary protocol) the reliable Transmission Control Protocol (TCP), too. The last is used when the response data size exceeds 512 bytes, and for tasks which require the reliable delivery (e.g. zone transfers). Moreover, there are some resolver implementations that use TCP for all queries. What Is DNS Server Or Protocol Port Number? – POFTUT 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 used DNS port is TCP Port 53. TCP provides stability over DNS resolutions process. With TCP 53 there will be no data loss over network transmission which makes DNS transaction more stable. http - At what layer in the protocol stack does DNS happen DNS is a protocol that arguably sits at the application-level, but is a separate application in and of itself that makes use of the whole TCP/IP "stack". (LDAP is similar, if that helps "place" DNS.) It's a fundamental "phone book"-like directory for the Internet and has absolutely nothing specific to do with the HTTP protocol. IPv6 DNS: Understanding IPv6 and a Quick Implementation Guide