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词条 Quad9
释义

  1. IP addresses

  2. See also

  3. References

  4. External Links

Quad9 is a not-for-profit public-benefit organization supported by IBM, Packet Clearing House (PCH), Global Cyber Alliance (GCA), and many other cybersecurity organizations for the purpose of operating a privacy-and-security-centric public DNS resolver.[1] Its main differentiators from other DNS resolvers are that it does not record the queries users send to it, and that it automatically blocks domains known to be associated with malicious activity.[2][3] Quad9 offers DNS over TLS service over port 853,[4][5] DNS over HTTPS over port 443[6] and DNSCrypt service over port 443.[7]

IP addresses

Quad9 is accessible via the anycast IP addresses for IPv4: 9.9.9.9 (hence its name) and 149.112.112.112, and IPv6: 2620:fe::fe and 2620:fe::9.[8]

Quad9 supports DNS over TLS on port 853 (the standard) using an auth name of dns.quad9.net.

Quad9 supports DNS over HTTPS on port 443 (the standard) using an URL of https://9.9.9.9/dns-query.

See also

  • DNS over TLS
  • DNS over HTTPS
  • DNSCrypt
  • Domain generation algorithm
  • Open Root Server Network
  • Public recursive name server

References

1. ^{{Cite web|url=https://www.quad9.net/about/|title=Quad9 Founding Organizations|website=Quad9|access-date=2018-04-08}}
2. ^{{Cite web|url=https://www.quad9.net/faq/#How_does_Quad9_protect_me_from_malicious_domains|title=FAQ: How does Quad9 protect me from malicious domains?|website=Quad9|access-date=2018-04-08}}
3. ^{{Cite news|url=https://arstechnica.com/information-technology/2017/11/new-quad9-dns-service-blocks-malicious-domains-for-everyone/|title=New "Quad9" DNS service blocks malicious domains for everyone|work=Ars Technica|access-date=2018-04-08|language=en-us}}
4. ^{{Cite web|url=https://www.quad9.net/faq/#Does_Quad9_support_DNS_over_TLS|title=FAQ: Does Quad9 support DNS over TLS?|website=Quad9|access-date=2018-04-08}}
5. ^{{Cite web|url=https://medium.com/nlnetlabs/privacy-using-dns-over-tls-with-the-new-quad9-dns-service-1ff2d2b687c5|title=Privacy: Using DNS-over-TLS with the Quad9 DNS Service|website=Medium|access-date=2018-04-08}}
6. ^{{Cite web|url=https://www.quad9.net/doh-quad9-dns-servers/|title=DoH with Quad9 DNS Servers|website=Quad9|access-date=2018-10-05}}
7. ^{{Cite web|url=https://www.quad9.net/privacy-dnscrypt-testing/|title= DNSCrypt Now in Testing |website=Quad9|access-date=2018-10-22}}
8. ^{{Cite web|url=https://www.quad9.net/faq/|title=FAQ - DNS Need to Know Info|website=Quad9|access-date=2018-04-08}}

External Links

  • {{Official website|https://www.quad9.net}}
  • [https://www.quad9.net/faq/ Quad9 FAQ]
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1 : Alternative_Internet_DNS_services

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