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PowerDNS is a DNS server, written in C++ and licensed under the GPL. It runs on most Unix derivatives. PowerDNS features a large number of different ''backends'' ranging from simple BIND style zonefiles to relational databases and load balancing/failover algorithms. A DNS recursor is provided as a separate program. PowerDNS is a product of the Dutch company PowerDNS.COM BV, with numerous contributions from the open source community. The principal author is Bert Hubert. In March 2015, PowerDNS.COM BV merged with Open-Xchange. == Features == PowerDNS Authoritative Server (pdns_server) consists of a single core, and multiple dynamically loadable backends that run multi-threaded. The core handles all packet processing and DNS intelligence, while one or more backends deliver DNS records using arbitrary storage methods. Zone transfers and update notifications are supported, and the processes can run ''unprivileged'' and ''chrooted''. Various ''caches'' are maintained to speed up query processing. ''Run-time control'' is available through the pdns_control command, which allows reloading of separate zones, cache purges, zone notifications and dumps statistics in Multi Router Traffic Grapher / rrdtool format. Realtime information can also be obtained through the optional built-in web server. There are many independent projects to create management interfaces for PowerDNS, including (PowerAdmin ), (PDNSOps ), (PowerDNS on rails ) and (JPower Admin ) and even a drupal module called (PowerAdmin ). 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「PowerDNS」の詳細全文を読む スポンサード リンク
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