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The root zone file is a small (about 2 MB) data set [6] whose publication is the primary purpose of root name servers. This is not to be confused with the root.hints file used to bootstrap a resolver. The root zone file is at the apex of a hierarchical distributed database called the Domain Name System (DNS).
A DNS name server is a server that stores the DNS records for a domain; a DNS name server responds with answers to queries against its database. The most common types of records stored in the DNS database are for start of authority ( SOA ), IP addresses ( A and AAAA ), SMTP mail exchangers (MX), name servers (NS), pointers for reverse DNS ...
When looking up a bare name in DNS, the network stack will add the search domains to it to form fully qualified domain names, and look up those as well. [9] For example, if the domain search list contains "wikipedia.org", typing "en" in the browser will direct the user to "en.wikipedia.org".
Wi-Fi Protected Access (WPA), Wi-Fi Protected Access 2 (WPA2), and Wi-Fi Protected Access 3 (WPA3) are the three security certification programs developed after 2000 by the Wi-Fi Alliance to secure wireless computer networks.
The browser resolves the server name of the URL (example.org) into an Internet Protocol address using the globally distributed Domain Name System (DNS). This lookup returns an IP address such as 203.0.113.4 or 2001:db8:2e::7334. The browser then requests the resource by sending an HTTP request across the Internet to the computer at that address ...
Archive.today was founded in 2012. The site originally branded itself as archive.today, but changed the primary mirror to archive.is in May 2015. [6] It began to deprecate the archive.is domain in favor of other mirrors in January 2019. [7] As of 2021, archive.today had saved about 500 million pages. [5]
Wireless security is another aspect of computer security. Organizations may be particularly vulnerable to security breaches [6] caused by rogue access points.. If an employee adds a wireless interface to an unsecured port of a system, they may create a breach in network security that would allow access to confidential materials.
As of 2018, Azure was available in 54 regions, [66] and Microsoft was the first primary cloud provider to establish facilities in Africa, with two regions in South Africa. [67] Azure geographies consist of multiple Azure Regions, like "North Europe" (located in Dublin, Ireland) and "West Europe" (located in Amsterdam, Netherlands).