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To improve efficiency, reduce DNS traffic across the Internet, and increase performance in end-user applications, the Domain Name System supports DNS cache servers which store DNS query results for a period of time determined in the configuration (time-to-live) of the domain name record in question. Typically, such caching DNS servers also ...
The DNS server also features blocking domain names using block lists [23] and also supports using HTTP or SOCKS5, for transport of DNS requests over Tor network. [24] The DNS server supports running independently developed plugins that can be used to process and respond to DNS requests.
A DNS zone is implemented in the configuration system of a domain name server. Historically, it is defined in the zone file , an operating system text file that starts with the special DNS record type Start of Authority (SOA) and contains all records for the resources described within the zone.
Dynamic DNS (DDNS) is a method of automatically updating a name server in the Domain Name System (DNS), often in real time, with the active DDNS configuration of its configured hostnames, addresses or other information. The term is used to describe two different concepts.
dnsmasq caches DNS records, reducing the load on upstream nameservers and improving performance, and can be configured to automatically pick up the addresses of its upstream servers. dnsmasq accepts DNS queries and either answers them from a small, local cache or forwards them to a real, recursive DNS server.
Caching name servers (DNS caches) are usually recursive resolvers that store DNS query results for a period of time determined in the configuration (time-to-live) of each domain-name record. DNS caches improve the efficiency of the DNS by reducing DNS traffic across the Internet, and by reducing load on authoritative name-servers, particularly ...
The Name Service Switch (NSS) is an interface of glibc that connects a computer with a variety of sources of common configuration databases and name resolution mechanisms. [1] These sources include local operating system files (such as /etc/passwd , /etc/group , and /etc/hosts ), the Domain Name System (DNS), the Network Information Service ...
The intention of this development is to add variance to the "gene pool" of DNS implementations used by higher level name servers and thus increase the resilience of DNS against software flaws or exploits. NSD uses BIND-style zone-files (zone-files used under BIND can usually be used unmodified in NSD, once entered into the NSD configuration).