Network domain

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A network domain is an administrative grouping of multiple private computer networks or local hosts within the same infrastructure. [1] [2] [3] Domains can be identified using a domain name; domains which need to be accessible from the public Internet can be assigned a globally unique name within the Domain Name System (DNS).

A domain controller is a server that automates the logins, user groups, and architecture of a domain, rather than manually coding this information on each host in the domain. It is common practice, but not required, to have the domain controller act as a DNS server. [4] That is, it would assign names to hosts in the network based on their IP addresses.

Usage

Use of the term network domain first appeared in 1965 and saw increasing usage beginning in 1985. [5] It initially applied to the naming of radio stations based on broadcast frequency and geographic area. [6] It entered its current usage by network theorists to describe solutions to the problems of subdividing a single homogeneous LAN and joining multiple networks, possibly constituted of different network architectures. [7]

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DNS over HTTPS (DoH) is a protocol for performing remote Domain Name System (DNS) resolution via the HTTPS protocol. A goal of the method is to increase user privacy and security by preventing eavesdropping and manipulation of DNS data by man-in-the-middle attacks by using the HTTPS protocol to encrypt the data between the DoH client and the DoH-based DNS resolver. By March 2018, Google and the Mozilla Foundation had started testing versions of DNS over HTTPS. In February 2020, Firefox switched to DNS over HTTPS by default for users in the United States. In May 2020, Chrome switched to DNS over HTTPS by default.

DNS over TLS (DoT) is a network security protocol for encrypting and wrapping Domain Name System (DNS) queries and answers via the Transport Layer Security (TLS) protocol. The goal of the method is to increase user privacy and security by preventing eavesdropping and manipulation of DNS data via man-in-the-middle attacks. The well-known port number for DoT is 853.

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A virtual private network (VPN) service provides a proxy server to help users bypass Internet censorship such as geo-blocking and users who want to protect their communications against data profiling or MitM attacks on hostile networks.

References

  1. ↑ Compare: Anderson, Howard; Yull, Sharon; Hellingsworth, Bruce (2001). Higher National Computing (2 ed.). Oxford: Routledge (published 2004). p. 260. ISBN   9781136398988 . Retrieved 2015-08-18. A network domain is more formally defined as a group for servers controlled by a primary domain controller. The idea is that this group of servers can behave as a single combined unit.
  2. ↑ Compare: Chen, Lidong; Gong, Guang (29 May 2012). Communication System Security. Chapman & Hall/CRC Cryptography and Network Security Series. CRC Press (published 2012). p. 313. ISBN   9781439840368 . Retrieved 2015-08-18. The terminology, network domain, comes from the cellular systems. Traditionally, a cellular service provider owns not only radio frequency spectrums but also certain network infrastructure, for example, base stations, switches, and servers. All these entities are connected through wired network to provide telephony service. A network domain is the wired portion of an operator's network.
  3. ↑ Postel, J (October 1984). "RFC: 920 - Domain Requirements". Internet Engineering Task Force. Archived from the original on 12 January 2021. Retrieved 27 January 2019.
  4. ↑ Archiveddocs. "Planning DNS Servers". docs.microsoft.com. Archived from the original on 2019-01-28. Retrieved 2019-01-27.
  5. ↑ "Google Ngram Viewer". books.google.com. Retrieved 2019-01-27.
  6. ↑ Barnouw, Erik (1968-02-20). A History of Broadcasting in the United States: 2. The Golden Web: 1933-1953. OUP USA. ISBN   9780195004755. Archived from the original on 2022-01-18. Retrieved 2021-12-03.
  7. ↑ Chan, Kenneth Chi-Kin (1986). Integrating local area networks to improve reliability and performance (Thesis). University of British Columbia. Archived from the original on 2019-01-28. Retrieved 2019-01-27.
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