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词条 Unbound (DNS server)
释义

  1. Features

  2. History

  3. Reception

  4. See also

  5. References

  6. External links

{{Infobox software
| name = Unbound
| logo =
| screenshot =
| caption =
| developer = NLnet Labs
| released = {{Start date and age|2007|02|19}}
| latest release version = 1.9.1
| latest release date = {{Start date and age|2019|3|12}}[1]
| latest preview version =
| latest preview date =
| repo = https://nlnetlabs.nl/svn/unbound/
| programming language = C
| operating system = Unix-like, Windows
| genre = DNS server
| license = BSD license
}}

Unbound is a validating, recursive, and caching DNS resolver product from NLnet Labs. It is distributed free of charge in open-source form under the BSD license.

Features

  • Caching resolver with prefetching of popular items before they expire
  • DNS over TLS forwarding and server, with domain-validation[2]
  • DNS64
  • DNSCrypt[3]
  • DNSSEC validating
  • EDNS Client Subnet

History

{{unreferenced section|date=August 2016}}

Originally designed by Jakob Schlyter of Kirei and Roy Arends of Nominet in 2004, funding was provided by VeriSign and ep.net to develop a prototype written in Java (David Blacka and Matt Larson, VeriSign). In 2006, the prototype was re-written for high-performance in the C programming language by NLnet Labs.

Unbound is designed as a set of modular components that incorporate modern features, such as enhanced security (DNSSEC) validation, Internet Protocol Version 6 (IPv6), and a client resolver application programming interface library as an integral part of the architecture. Originally written for POSIX-compatible Unix-like operating system, it runs on FreeBSD, OpenBSD, NetBSD, OS X, and Linux, as well as Microsoft Windows.

Reception

Unbound has supplanted the Berkeley Internet Name Daemon (BIND) as the default, base-system name server in FreeBSD and OpenBSD, where it is perceived as smaller, more modern, and more secure for most applications.[4][5]

See also

  • Comparison of DNS server software

References

1. ^{{cite mailing list|url=https://nlnetlabs.nl/pipermail/unbound-users/2019-March/011415.html|mailing-list=unbound-users|title=Unbound 1.9.1 released|first=Wouter|last=Wijngaards|date=12 March 2019|accessdate=12 March 2019}}
2. ^{{cite web|title=Actually secure DNS over TLS in Unbound|date=2018-06-07|accessdate=2018-06-11|url=https://www.ctrl.blog/entry/unbound-tls-forwarding|website=Ctrl blog}}
3. ^{{cite web|title=Adding DNSCrypt to Unbound|url=https://protoxin.net/adding-dnscrypt-to-unbound/|date=2017-04-14|accessdate=2018-06-11|website=ProToxin}}
4. ^{{cite web|url=http://undeadly.org/cgi?action=article&sid=20140823064850|title=Heads Up: BIND Disabled in Base|website=OpenBSD Journal|date=August 23, 2014| accessdate=June 10, 2015}}
5. ^{{cite web|url=http://blog.des.no/2013/09/dns-in-freebsd-10/|title=DNS in FreeBSD 10|date=September 24, 2014 |author=Dag-Erling Smørgrav|website=Dag-Erling Smørgrav's blog|accessdate=June 10, 2015}}

External links

  • {{Official website}}
  • [https://calomel.org/unbound_dns.html Unbound DNS Tutorial with examples and explanations]
{{network-software-stub}}

4 : DNS software|Free network-related software|Free software programmed in C|DNS server software for Linux

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