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<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head><meta http-equiv="Content-Type" content="text/html; charset=us-ascii">
<title>Information related to #dns on Libera.chat</title>
</head>
<body>
<h1>Get help with DNS related problems or issues in #dns on the <a target="_blank" href="https://libera.chat/">Libera.Chat IRC network.</a></h1>
<ul>
<li><a href="#hints">New root hints</a></li>
<li><a href="#ksk2018">New root DNSSEC KSK</a></li>
<li><a href="#software">Software</a><ul>
<li><a href="#nameservers">Servers or proxies</a></li>
<li><a href="#tools">Tools</a></li>
</ul></li>
<li><a href="#srvprov">Service providers</a><ul>
<li><a href="#athsrv">Authoritative services</a></li>
<li><a href="#recsrv">Recursor services</a></li>
</ul></li>
<li><a href="#documents">Reading material</a></li>
<li><a href="#why">Why does this site exist?</a></li>
</ul>
<h2><a name="hints">New root hints</a></h2>
<p>Use dig, drill or kdig to fetch them from any root server into whichever file is used to prime your server, e.g., <code>dig @198.41.0.4 > named.cache</code></p>
<p>Hints, full zone and trust anchor (KSK) files are available from or via <a target="_blank" href="https://www.iana.org/domains/root/files">IANA</a> using FTP or HTTPS.</p>
<h2><a name="ksk2018">New root DNSSEC KSK</a></h2>
<p>The root DNSSEC KSK (trust anchor) was replaced (rolled) on 11 October 2018 --
originally planned for a year earlier it was postponed for cautionary reasons,
see <a href="https://www.icann.org/news/announcement-2017-09-27-en">their announcement</a> for
details. For most this has been a non-event. ICANN has <a target="_blank"
href="https://www.icann.org/resources/pages/ksk-rollover">information</a>
for anyone interested, especially those running validating resolvers.</p>
<h2><a name="software">Software</a></h2>
<h3><a name="nameservers">Nameservers or proxies</a></h3>
<table border="1" cellpadding="2" cellspacing="0">
<thead>
<tr><th>Name</th><th>Version</th><th>Type</th></tr>
</thead>
<tbody>
<tr><td><a target="_blank" href="https://www.isc.org/downloads/bind/">BIND</a></td><td>9.18.32/9.20.4</td><td>authoritative and validating resolver in one</td></tr>
<tr><td><a target="_blank" href="https://www.cisco.com/c/en/us/products/cloud-systems-management/prime-network-registrar/">Cisco Prime Network Registrar DNS</a></td><td>11.2</td><td>authoritative and validating resolver</td></tr>
<tr><td><a target="_blank" href="https://coredns.io/">CoreDNS</a></td><td>1.11.1</td><td>DNS server written in Go, with service discovery and chaining plugins</td></tr>
<tr><td><a target="_blank" href="https://cr.yp.to/djbdns.html">djbdns</a></td><td>1.05</td><td>authoritative (limited record types supported) and non-validating resolver using distinct programs</td></tr>
<tr><td><a target="_blank" href="http://dnrd.sourceforge.net/">DNRD</a></td><td>2.20.3</td><td>proxy</td></tr>
<tr><td><a target="_blank" href="https://github.com/DNSCrypt/dnscrypt-proxy">dnscrypt-proxy</a></td><td>2.1.5</td><td>proxy/forwarder</td></tr>
<tr><td><a target="_blank" href="https://dnsdist.org/">dnsdist</a></td><td>1.9.8</td><td>load balancer, DoT (since 1.3.0), DoH (since 1.4.0), DoH3 (since 1.9.0), DoQ (since 1.9.0), dnscrypt</td></tr>
<tr><td><a target="_blank" href="http://www.thekelleys.org.uk/dnsmasq/doc.html">dnsmasq</a></td><td>2.90</td><td>filtering proxy with authoritative abilities</td></tr>
<tr><td><a target="_blank" href="https://github.com/commonshost/dohnut">Dohnut</a></td><td>4.11.0</td><td>DNS to DoH proxy, load balancer, query fuzzer</td></tr>
<tr><td><a target="_blank" href="http://gdnsd.org/">gdnsd</a></td><td>3.8.2</td><td>authoritative</td></tr>
<tr><td><a target="_blank" href="https://www.knot-dns.cz/">Knot DNS</a></td><td>3.3.8</td><td>authoritative</td></tr>
<tr><td><a target="_blank" href="https://www.knot-resolver.cz/">Knot Resolver</a></td><td>5.7.4</td><td>validating resolver</td></tr>
<tr><td><a target="_blank" href="http://www.maradns.org/">MaraDNS</a></td><td>3.5.0036</td><td>authoritative (now includes the Deadwood resolver)</td></tr>
<tr><td><a target="_blank" href="https://www.nlnetlabs.nl/projects/nsd/">NSD</a></td><td>4.10.0</td><td>authoritative</td></tr>
<tr><td><a target="_blank" href="http://www.nxfilter.org/">NxFilter</a></td><td>4.7.1.0</td><td>filtering proxy</td></tr>
<tr><td><a target="_blank" href="http://members.home.nl/p.a.rombouts/pdnsd/">pdnsd</a></td><td>1.2.9a-par</td><td>proxy</td></tr>
<tr><td><a target="_blank" href="http://posadis.sourceforge.net/posadis">Posadis</a></td><td>0.60.6</td><td>authoritative and resolver in one - Site page link broken - <a target="_blank" href="https://sourceforge.net/projects/posadis/files/posadis/">Sourceforge.net files here</a><br>Web Archive links: <a target="_blank" href="https://web.archive.org/web/20071224204002/http://posadis.sourceforge.net/download">Site page here</a> - <a target="_blank" href="https://web.archive.org/web/20070717124836/http://www.posadis.org/files/">Original Files [Posadis site]</a></td></tr>
<tr><td><a target="_blank" href="https://www.powerdns.com/auth.html">PowerDNS Authoritative Server</a></td><td>4.9.4</td><td>authoritative</td></tr>
<tr><td><a target="_blank" href="https://www.powerdns.com/recursor.html">PowerDNS Recursor</a></td><td>5.2.0</td><td>resolver</td></tr>
<tr><td><a target="_blank" href="http://posadis.sourceforge.net/sans">SANS</a></td><td>1.0.1</td><td>authoritative - Broken link.<br>Web Archive link: <a target="_blank" href="https://web.archive.org/web/20071215172058/http://posadis.sourceforge.net/sans">Site page here</a> - <a target="_blank" href="https://sourceforge.net/projects/posadis/files/sans/">Original Files [sourceforge.net]</a></td></tr>
<tr><td><a target="_blank" href="http://simpledns.com/">Simple DNS Plus</a></td><td>9.1(116)</td><td>authoritative and resolver all in one</td></tr>
<tr><td><a target="_blank" href="https://dnsprivacy.org/wiki/display/DP/DNS+Privacy+Daemon+-+Stubby">stubby</a></td><td>0.4.3</td><td>proxy</td></tr>
<tr><td><a target="_blank" href="https://github.com/systemd/systemd">systemd-resolved</a></td><td>256.4</td><td>optionally validating resolver (part of systemd), also supports DoT, LLMNR and mDNS</td></tr>
<tr><td><a target="_blank" href="https://technitium.com/dns/">Technitium DNS Server</a></td><td>12.2.1</td><td>resolver and proxy supporting optional forwarding via DoH (standard or "JSON") or DoT</td></tr>
<tr><td><a target="_blank" href="https://unbound.net/">Unbound</a></td><td>1.20.0</td><td>validating resolver, DoH, DoT, dnscrypt</td></tr>
<tr><td><a target="_blank" href="http://www.yadifa.eu/">YADIFA</a></td><td>2.6.7</td><td>authoritative</td></tr>
</tbody>
</table>
<h3><a name="tools">Tools</a></h3>
<table border="1" cellpadding="2" cellspacing="0">
<thead>
<tr><th>Name</th><th>Version</th><th>Type</th></tr>
</thead>
<tbody>
<tr><td><a target="_blank" href="http://www.chiark.greenend.org.uk/~ian/adns/ftp/">adns</a></td><td>1.6.0</td><td>cli: library that includes some utilities</td></tr>
<tr><td><a target="_blank" href="https://www.buddyns.com/delegation-lab/">BuddyNS Delegation Lab tool</a></td><td></td><td>web: visualize and troubleshoot delegation</td></tr>
<tr><td><a target="_blank" href="https://github.com/commonshost/bulldohzer">Bulldohzer</a></td><td>1.3.1</td><td>cli: DNS & DoH latency measurements</td></tr>
<tr><td><a target="_blank" href="https://c-ares.haxx.se/">c-ares</a></td><td>1.26.0</td><td>cli: library that includes some utilities</td></tr>
<tr><td><a target="_blank" href="https://www.isc.org/downloads/bind/">delv</a></td><td></td><td>cli: lookup and DNSSEC validation (part of BIND 9.10+)</td></tr>
<tr><td><a target="_blank" href="https://github.com/niclabs/dHSM/">dHSM</a></td><td></td><td>cli: Distributed Threshold Cryptography HSM</td></tr>
<tr><td><a target="_blank" href="https://github.com/niclabs/dhsm-signer/">dHSM zone signer</a></td><td></td><td>cli: Zone signer companion for dHSM by using PKCS11</td></tr>
<tr><td><a target="_blank" href="https://www.isc.org/downloads/bind/">dig</a></td><td></td><td>cli: lookup (part of BIND)</td></tr>
<tr><td><a target="_blank" href="http://www.zonecut.net/dns/">DNSBajaj (DNS By Eye)</a></td><td>0.9.6</td><td>web: check the delegation of your domain by using graphs of dependencies<br>download link broken. <a target="_blank" href="http://web.archive.org/web/20081219233618/http://ftp.linuxarkivet.se:80/pub/dnsbajaj/">original sources here</a></td></tr>
<tr><td><a target="_blank" href="https://github.com/dmachard/go-dnscollector">DNS-collector</a></td><td>0.46.0</td><td>cli: high speed passive DNS stats collector.</td></tr>
<tr><td><a target="_blank" href="https://dnsdiag.org/">DNSDiag</a></td><td>2.5.0</td><td>cli: diagnostics and performance measurement</td></tr>
<tr><td><a target="_blank" href="https://github.com/DNS-OARC/dnsperf">dnsperf/resperf</a></td><td>2.14.0</td><td>cli: benchmark nameserver performance</td></tr>
<tr><td><a target="_blank" href="https://dnssec-debugger.verisignlabs.com/">DNSSEC Analyzer</a></td><td></td><td>web: Verisign's DNSSEC problem debugger</td></tr>
<tr><td><a target="_blank" href="https://dnssec-failed.org/">dnssec-failed.org</a></td><td></td><td>web: if you can see visit the site your resolver didn't perform DNSSEC validation -- it should show a page saying that but doesn't</td></tr>
<tr><td><a target="_blank" href="https://dnssec-tools.org/">dnssec-tools.org</a></td><td>2.2.3</td><td>cli: various DNSSEC tools<br>web: results of data submitted by dnssec-check<br>gui: tray monitor</td></tr>
<tr><td><a target="_blank" href="https://dnssectest.net/">dnssectest.net</a></td><td></td><td>web: lookup and DNSSEC validation, plus DNSSEC deployment stats</td></tr>
<tr><td><a target="_blank" href="http://www.dnsstuff.com/">DNSstuff</a></td><td></td><td>web: domain name analysis</td></tr>
<tr><td><a target="_blank" href="http://dnsviz.net/">DNSViz</a></td><td>0.9.4</td><td>cli & web: zone visualization (including DNSSEC)</td></tr>
<tr><td><a target="_blank" href="http://dns.measurement-factory.com/tools/dnstop/">dnstop</a></td><td>20200527</td><td>cli & ncurses interactive: DNS stats "top" tool</td></tr>
<tr><td><a target="_blank" href="http://www.mavetju.org/unix/dnstracer.php">dnstracer</a></td><td>1.9</td><td>cli: trace name delegation</td></tr>
<tr><td><a target="_blank" href="https://www.dns-oarc.net/tools/dsc">dsc</a></td><td>2.15.1</td><td>cli: DNS Statistics Collector</td></tr>
<tr><td><a target="_blank" href="https://www.dns-oarc.net/tools/dsc">dsp</a></td><td>2.0.1</td><td>cli: DNS Statistics Presenter (companion for dsc collector) - DISCONTINUED</td></tr>
<tr><td><a target="_blank" href="https://github.com/DNS-OARC/flamethrower">flamethrower</a></td><td>0.11.0</td><td>cli: benchmark nameserver performance</td></tr>
<tr><td><a target="_blank" href="https://getdnsapi.net/">getdnsapi</a></td><td>1.7.3</td><td>new api to use dns</td></tr>
<tr><td><a target="_blank" href="https://dns.google/">Google Public DNS</a></td><td></td><td>web: web based resolver</td></tr>
<tr><td><a target="_blank" href="https://gitlab.rd.nic.fr/dns-testing-tools/ibdns">IBDNS</a></td><td>0.3.4</td><td>server: Intentionally Broken DNS server</td></tr>
<tr><td><a target="_blank" href="http://intodns.com/">intoDNS</a></td><td></td><td>web: provides lots of info about a domain (some requires own interpretation)</td></tr>
<tr><td><a target="_blank" href="https://www.knot-dns.cz/">kdig</a></td><td></td><td>cli: advanced lookups including DoT & DoH (part of Knot DNS)</td></tr>
<tr><td><a target="_blank" href="https://www.nlnetlabs.nl/projects/ldns/">ldns</a></td><td>1.8.3</td><td>cli: library that includes a lookup tool (drill) that provides even more information than dig</td></tr>
<tr><td><a target="_blank" href="https://github.com/google/namebench">Namebench</a></td><td>2.0</td><td>cli: benchmark nameserver performance</td></tr>
<tr><td><a target="_blank" href="https://dotat.at/prog/nsdiff/">nsdiff</a></td><td></td><td>cli:
nsdiff/nspatch/nsvi zone diff/update tool</td></tr>
<tr><td><a target="_blank" href="https://www.opendnssec.org/">OpenDNSSEC</a></td><td>2.1.13</td><td>cli: policy-based zone signer with PKCS#11 interface</td></tr>
<tr><td><a target="_blank" href="https://www.dns-oarc.net/tools/packetq">PacketQ</a></td><td>1.7.1</td><td>cli: run sql queries agaist pcap files</td></tr>
<tr><td><a target="_blank" href="https://www.opendnssec.org/softhsm/">SoftHSM</a></td><td>2.6.1</td><td>cli: optional companion for OpenDNSSEC. Cryptographic store with PKCS#11 interface</td></tr>
<tr><td><a target="_blank" href="https://trans-trust.verisignlabs.com/">The Transitive Trust and DNS Dependency Graph Portal</a></td><td></td><td>web: graphs of transitive trust and dependencies</td></tr>
<tr><td><a target="_blank" href="http://unbound.net/">unbound-host</a></td><td></td><td>cli: lookup (part of unbound)</td></tr>
<tr><td><a target="_blank" href="http://zonemaster.fr/">Zonemaster</a></td><td>2023.2.1</td><td >cli+web: zone delegation quality checker</td></tr>
</tbody>
</table>
<h2><a name="srvprov">Service providers</a></h2>
<h3><a name="athsrv">Authoritative services</a></h3>
<p>Note that most registrars provide it for free, though some charge a fee - we don't attempt to enumerate them here.</p>
<table border="1" cellpadding="2" cellspacing="0">
<thead>
<tr><th>Provider</th><th>Cost</th><th>Notes</th></tr>
</thead>
<tbody>
<tr><td><a target="_blank" href="https://1984.hosting/product/freedns/">1984 FreeDNS</a></td><td>free</td><td>dynamic, limited record types (dnssec), secondary (dnssec)</td></tr>
<tr><td><a target="_blank" href="https://freedns.afraid.org/">Afraid FreeDNS</a></td><td>free with limits</td><td>secondary</td></tr>
<tr><td><a target="_blank" href="https://www.akamai.com/html/solutions/enhanced_dns.html">Akamai (Cotendo)</a></td><td>paid</td><td></td></tr>
<tr><td><a target="_blank" href="https://aws.amazon.com/route53/">Amazon - Route 53</a></td><td>paid</td><td>api, registration</td></tr>
<tr><td><a target="_blank" href="https://www.buddyns.com/">BuddyNS</a></td><td>free and paid</td><td>api</td></tr>
<tr><td><a target="_blank" href="https://www.cloudflare.com/dns/">Cloudflare</a></td><td>free and paid</td><td>api, dynamic</td></tr>
<tr><td><a target="_blank" href="https://www.cloudns.net/">ClouDNS</a></td><td>free and paid</td><td>api,
registration, secondary (dnssec)</td></tr>
<tr><td><a target="_blank" href="https://www.dnsmadeeasy.com/">DNS Made Easy</a></td><td>paid with free trial</td><td>api</td></tr>
<tr><td><a target="_blank" href="https://dnsimple.com/">DNSimple</a></td><td>paid</td><td>secondary</td></tr>
<tr><td><a target="_blank" href="https://dyn.com/">Dyn</a></td><td>paid</td><td>dynamic, registration</td></tr>
<tr><td><a target="_blank" href="https://www.easydns.com/">easyDNS</a></td><td>paid</td><td>dynamic (some plans), registration, secondary</td></tr>
<tr><td><a target="_blank" href="https://www.godaddy.com/domains/dns-hosting.aspx">GoDaddy</a></td><td>paid</td><td></td></tr>
<tr><td><a target="_blank" href="https://cloud.google.com/dns/">Google - Cloud DNS</a></td><td>paid with free trial</td><td>api</td></tr>
<tr><td><a target="_blank" href="https://dns.he.net/">Hurricane Electric</a></td><td>free</td><td>api, dynamic,
limited record types (no dnssec), secondary (dnssec)</td></tr>
<tr><td><a target="_blank" href="https://www.namecheap.com/">Namecheap</a></td><td><a target="_blank" href="https://www.namecheap.com/domains/freedns/" title="Namecheap FreeDNS">free</a>, free if domain is purchased/renewed (BasicDNS) and <a target="_blank" href="https://www.namecheap.com/security/premiumdns.aspx" title="Namecheap PremiumDNS">paid</a></td><td>dynamic, free has limited record types (no dnssec), secondary (premium only)</td></tr>
<tr><td><a target="_blank" href="https://www.neustar.biz/services/dns-services">Neustar UltraDNS</a></td><td>paid</td><td>api, secondary</td></tr>
<tr><td><a target="_blank" href="https://www.noip.com/">No-IP.com</a></td><td>free and paid</td><td></td></tr>
<tr><td><a target="_blank" href="https://ns-global.zone/">NS-Global</a></td><td>free</td><td>secondary only
(dnssec)</td></tr>
<tr><td><a target="_blank" href="https://ns1.com/">NS1</a></td><td>free and paid</td><td>api, secondary</td></tr>
<tr><td><a target="_blank" href="https://puck.nether.net/dns/">PUCK</a></td><td>free</td><td>secondary only</td></tr>
<tr><td><a target="_blank" href="https://www.rackspace.com/cloud/dns">Rackspace</a></td><td>free if using other (paid) services<td>api</td></tr>
<tr><td><a target="_blank" href="https://www.verisigninc.com/en_US/website-availability/dns-management/">Verisign Managed DNS</a></td><td>paid</td><td></td></tr>
<tr><td><a target="_blank" href="https://www.verizondigitalmedia.com/platform/route/">Verizon ROUTE</a></td><td>paid</td><td>api</td></tr>
<tr><td><a target="_blank" href="https://www.hetzner.com/dns-console">Hetzner DNS Console</a></td><td>free</td><td>API, no dnssec, no rDNS</td></tr>
</tbody>
</table>
<h3><a name="recsrv">Recursor services</a></h3>
<p>Note that most ISPs and some datacenters provide it for free to their customers - we don't attempt to enumerate them here. Beware: some ISPs log and sell their resolver data, and some replace NXDOMAIN with their own server's address(es) to provide their form of safety and/or marketing, some do both.</p>
<p>Also, paid filtering services usually provide customization, so domains or classes of domains can be added or removed from the filters.</p>
<table border="1" cellpadding="2" cellspacing="0">
<thead>
<tr><th>Provider</th><th>Cost</th><th>Notes</th><th>Addresses</th></tr>
</thead>
<tbody>
<tr><td><a target="_blank" href="https://adguard.com/en/adguard-dns/overview.html">AdGuard DNS</a></td><td>free</td><td>filtering</td><td>Default (filters advertising, counters, and malicious sites):<ul><li>94.140.14.14<li>94.140.15.15<li>2a10:50c0::ad1:ff<li>2a10:50c0::ad2:ff<li>TLS: dns.adguard.com (CN=*.adguard.com)<li>DoH: https://dns.adguard.com/dns-query</ul>Family protection ("default" + adult content):<ul><li>94.140.14.15<li>94.140.15.16<li>2a10:50c0::bad1:ff<li>2a10:50c0::bad2:ff<li>TLS: dns-family.adguard.com (CN=*.adguard.com)<li>DoH: https://dns-family.adguard.com/dns-query</ul></td></tr>
<tr><td><a target="_blank" href="https://www.akamai.com/us/en/solutions/products/network-operator/answerx-intelligent-dns.jsp">Akamai AnswerX</a></td><td>paid</td><td></td><td></td></tr>
<tr><td>CenturyLink (nee Level 3)</td><td></td><td><em>does not officially provide a public resolver though their servers will respond; they have at times provided 'fake' responses</em> - <strong>please do not use these addresses</strong></td><td><ul><li><del>4.2.2.x</del></ul></td></tr>
<tr><td><a target="_blank" href="https://www.opendns.com/">Cisco Umbrella (nee OpenDNS)</a></td><td>free and paid</td><td>filtering, also on 5353/udp and 5353/tcp, dnscrypt on 443/tcp<br>check/purge entry at their <a href="https://cachecheck.opendns.com/">cachecheck tool</a><br>check their <a target="_blank" href="https://146.112.59.2/">system status</a> (works even if your DNS isn't working)</td><td>Home (customizable filtering):<ul><li>208.67.222.222<li>208.67.220.220</ul>IPv6 (security filtering):<ul><li>2620:119:35::35<li>2620:119:53::53</ul>FamilyShield (adult content filtering):<ul><li>208.67.222.123<li>208.67.220.123</ul>Unfiltered IPv6:<ul><li>2620:0:CCC::2<li>2620:0:CCD::2</ul></td></tr>
<tr><td><a target="_blank" href="https://cleanbrowsing.org">CleanBrowsing</a></td><td>free and paid</td><td>filtering, also on 5353/udp and 5353/tcp, DoH, DoT, dnscrypt on 8443/tcp</td><td>Security Filter (filters malicious sites):<ul><li>185.228.168.9<li>185.228.169.9<li>2A0D:2A00:1::2<li>2A0D:2A00:2::2</ul>Adult Filter ("security" + adult, pornographic, and explict):<ul><li>185.228.168.10<li>185.228.168.11<li>2A0D:2A00:1::1<li>2A0D:2A00:2::1<li>DoH: https://doh.cleanbrowsing.org/doh/adult-filter/</ul>Family Filter ("adult" + proxy/vpn, and mixed content):<ul><li>185.228.168.168<li>185.228.169.168<li>2A0D:2A00:1::<li>2A0D:2A00:2::<li>DoH: https://doh.cleanbrowsing.org/doh/family-filter/<li>TLS: CN=cleanbrowsing.org</ul></td></tr>
<tr><td><a target="_blank" href="https://1.1.1.1/">Cloudflare</a><br><small><a target="_blank" href="https://blog.cloudflare.com/announcing-1111/">announcement</a></small></td><td></td><td>free, limited logging, DoH, DoT</td><td><ul><li>1.1.1.1<li>1.0.0.1<li>2606:4700:4700::1111<li>2606:4700:4700::1001<li>TLS: CN=cloudflare-dns.com/SAN=*.cloudflare-dns.com<li>DoH: https://cloudflare-dns.com/dns-query<li>DoH: https://mozilla.cloudflare-dns.com/dns-query<li>Proprietary JSON DoH: https://cloudflare-dns.com/dns-query<li>SMS: telno:+18336721001</ul></td></tr>
<tr><td><a target="_blank" href="https://www.comodo.com/secure-dns/">Comodo Secure DNS</a></td><td>free</td><td>filtering</td><td><ul><li>8.26.56.26<li>8.20.247.20</ul></td></tr>
<tr><td><a target="_blank" href="https://commons.host">Commons Host</a></td><td>free</td><td>DoH only</td><td><ul><li>https://commons.host<li>Any subdomain or custom domain registered on the CDN also works</ul></td></tr>
<tr><td><a target="_blank" href="https://dns.watch/index">DNS.WATCH</a></td><td>free</td><td>no logging, validating</td><td><ul><li>84.200.69.80<li>84.200.70.40<li>2001:1608:10:25::1C04:B12F<li>2001:1608:10:25::9249:D69B</ul></td></tr>
<tr><td><a target="_blank" href="https://dyn.com/labs/dyn-internet-guide/">Dyn Internet Guide</a></td><td>free</td><td>filtering, correcting</td><td><ul><li>216.146.35.35<li>216.146.36.36</ul></td></tr>
<tr><td><a target="_blank" href="https://developers.google.com/speed/public-dns/">Google Public DNS</a></td><td>free</td><td>validating, DoH<br>flush a cached entry using their <a href="https://developers.google.com/speed/public-dns/cache">flush cache tool</a></td><td><ul><li>8.8.8.8<li>8.8.4.4<li>2001:4860:4860::8888<li>2001:4860:4860::8844<li>TLS: CN=dns.google/SAN=dns.google.com or IPs<li>DoH: https://dns.google/dns-query<li>Proprietary JSON DoH: https://dns.google/resolve</ul></td></tr>
<tr><td><a target="_blank" href="https://www.quad9.net/">Quad9</a></td><td>free</td><td>"Recommended": filtering, logs only geoloc, does not send ecs, validating, DoH, DoT<br>"Secured": filtering, logs only geoloc, does not send ecs, validating, DoH, DoT (currently identical to "Recommended")<br>"Unsecured": unfiltered, logs only geoloc, does not send ecs, DoH, DoT<br>"Secured w/ ECS support": filtering, logs only geoloc, sends ecs, validating, DoH, DoT</td><td>"Recommended":<ul><li>9.9.9.9<li>149.112.112.112<li>2620:FE::FE<li>2620:FE::FE:9<li>DoH: https://dns.quad9.net/dns-query</ul>"Secured":<ul><li>9.9.9.9<li>149.112.112.9<li>2620:FE::9<li>2620:FE::FE:9<li>DoH: https://dns9.quad9.net/dns-query</ul>"Unsecured":<ul><li>9.9.9.10<li>149.112.112.10<li>2620:FE::10<li>2620:FE::FE:10<li>DoH: https://dns10.quad9.net/dns-query</ul>"Secured w/ ECS support":<ul><li>9.9.9.11<li>149.112.112.11<li>2620:FE::11<li>2620:FE::FE:11<li>DoH: https://dns11.quad9.net/dns-query</ul>TLS:<ul><li>CN=*.quad9.net</ul></td></tr>
<tr><td><a target="_blank" href="https://www.safedns.com/">SafeDNS</a></td><td>paid with free trial</td><td></td><td><ul><li>195.46.39.39<li>195.46.39.40</ul></td></tr>
<tr><td><a target="_blank" href="https://vercara.com/ultra-dns-public">Vercara UltraDNS Public (nee Verisign Public DNS, Neustar DNS Advantage)</a></td><td>free</td><td>validating</td><td>Unfiltered Resolution:<ul><li>64.6.64.6<li>64.6.65.6<li>2620:74:1B::1:1<li>2620:74:1C::2:2</ul>Threat Protection:<ul><li>156.154.70.2<li>156.154.71.2<li>2610:a1:1018::2<li>2610:a1:1019::2</ul>Family Secure:<ul><li>156.154.70.3<li>156.154.71.3<li>2610:a1:1018::3<li>2610:a1:1019::3</ul></td></tr>
<tr><td><a target="_blank" href="https://dns.yandex.com/">Yandex.DNS</a></td><td>free and paid</td><td>filtering, unfiltered</td><td>Basic (unfiltered):<ul><li>77.88.8.8<li>77.88.8.1<li>2A02:6B8::FEED:0FF<li>2A02:6B8:0:1::FEED:0FF</ul>Safe (filters infected sites, fraudulent sites, and bots):<ul><li>77.88.8.88<li>77.88.8.2<li>2A02:6B8::FEED:BAD<li>2A02:6B8:0:1::FEED:BAD</ul>Family ("Safe" + adult sites and adult advertising):<ul><li>77.88.8.7<li>77.88.8.3<li>2A02:6B8::FEED:A11<li>2A02:6B8:0:1::FEED:A11</ul></td></tr>
</tbody>
</table>
<h2><a name="documents">Reading material</a></h2>
<table border="1" cellpadding="2" cellspacing="0">
<thead>
<tr>
<th>Resource</th>
<th>Summary</th>
</tr>
</thead>
<tbody>
<tr>
<td><a target="_blank" href="https://www.rfc-editor.org/info/rfc1034">RFC 1034</a></td>
<td>Domain names - concepts and facilities</td>
</tr>
<tr>
<td><a target="_blank" href="https://www.rfc-editor.org/info/rfc1035">RFC 1035</a></td>
<td>Domain names - implementation and specification</td>
</tr>
<tr>
<td><a target="_blank" href="https://www.iana.org/assignments/dns-parameters/dns-parameters.xhtml">IANA DNS Parameters</a></td>
<td>Compilation of DNS parameters with RFC references</td>
</tr>
<tr>
<td><a target="_blank" href="https://www.iana.org/protocols">IANA Protocol Registries</a></td>
<td>Compilation of protocol registries, including among other things additional DNS and DNSSEC parameter compilations</td>
</tr>
<tr>
<td><a target="_blank" href="//www.rfc-editor.org/search/rfc_search_detail.php?page=All&title=dns&pubstatus[]=Any&pub_date_type=any&sortkey=Number&sorting=ASC">Almost all DNS related RFCs</a></td>
<td>Search rfc-editor.org for <q>dns</q></td>
</tr>
<tr>
<td><a target="_blank" href="//www.rfc-editor.org/search/rfc_search_detail.php?page=All&title=domain&pubstatus[]=Any&pub_date_type=any&sortkey=Number&sorting=ASC">Some DNS related RFCs</a></td>
<td>Search rfc-editor.org for <q>domain</q></td>
</tr>
<tr>
<td><a target="_blank" href="http://www.statdns.com/rfc/">An up to date list of Domain Name System RFCs</a></td>
<td>Maintained by Frederic Cambus</td>
</tr>
<tr>
<td><a target="_blank" href="https://powerdns.org/dns-camel/">Relevant Domain Name System RFCs</a></td>
<td>Maintained by bert hubert</td>
</tr>
<tr>
<td><a target="_blank" href="http://www.iana.org/domains">IANA Domain Name Services</a></td>
<td>IANA maintains and operates several key aspects of the DNS</td>
</tr>
<tr>
<td><a target="_blank" href="https://jpmens.net/dns">Blogged DNS links listing</a></td>
<td>Compilation of blogged DNS links from Jan-Piet Mens</td>
</tr>
<tr>
<td><a target="_blank" href="https://mens.de/:/altdnsbook">Alternative DNS Servers (Free)</a></td>
<td>Book written by Jan-Piet Mens</td>
</tr>
<!--
manually populated list, but incomplete
<tr>
<td><a href="//www.rfc-editor.org/info/rfc1101" target="_blank">RFC 1101</a></td>
<td>DNS encoding of network names and other types</td>
</tr>
<tr>
<td><a target="_blank" href="//www.rfc-editor.org/info/rfc1034">RFC 1034</a></td>
<td>Domain names - concepts and facilities</td>
</tr>
<tr>
<td><a target="_blank" href="//www.rfc-editor.org/info/rfc1035">RFC 1035</a></td>
<td>Domain names - implementation and specification</td>
</tr>
<tr>
<td><a href="//www.rfc-editor.org/info/rfc1183" target="_blank">RFC 1183</a></td>
<td>New DNS RR Definitions</td>
</tr>
<tr>
<td><a href="//www.rfc-editor.org/info/rfc1383" target="_blank">RFC 1383</a></td>
<td>An Experiment in DNS Based IP Routing</td>
</tr>
<tr>
<td><a href="//www.rfc-editor.org/info/rfc1394" target="_blank">RFC 1394</a></td>
<td>Relationship of Telex Answerback Codes to Internet Domains</td>
</tr>
<tr>
<td><a href="//www.rfc-editor.org/info/rfc1401" target="_blank">RFC 1401</a></td>
<td>Correspondence between the IAB and DISA on the use of DNS</td>
</tr>
<tr>
<td><a href="//www.rfc-editor.org/info/rfc1464" target="_blank">RFC 1464</a></td>
<td>Using the Domain Name System To Store Arbitrary String Attributes</td>
</tr>
<tr>
<td><a href="//www.rfc-editor.org/info/rfc1480" target="_blank">RFC 1480</a></td>
<td>The US Domain</td>
</tr>
<tr>
<td><a href="//www.rfc-editor.org/info/rfc1535" target="_blank">RFC 1535</a></td>
<td>A Security Problem and Proposed Correction With Widely Deployed DNS Software</td>
</tr>
<tr>
<td><a href="//www.rfc-editor.org/info/rfc1536" target="_blank">RFC 1536</a></td>
<td>Common DNS Implementation Errors and Suggested Fixes</td>
</tr>
<tr>
<td><a href="//www.rfc-editor.org/info/rfc1591" target="_blank">RFC 1591</a></td>
<td>Domain Name System Structure and Delegation</td>
</tr>
<tr>
<td><a href="//www.rfc-editor.org/info/rfc1611" target="_blank">RFC 1611</a></td>
<td>DNS Server MIB Extensions</td>
</tr>
<tr>
<td><a href="//www.rfc-editor.org/info/rfc1612" target="_blank">RFC 1612</a></td>
<td>DNS Resolver MIB Extensions</td>
</tr>
<tr>
<td><a href="//www.rfc-editor.org/info/rfc1706" target="_blank">RFC 1706</a></td>
<td>DNS NSAP Resource Records</td>
</tr>
<tr>
<td><a href="//www.rfc-editor.org/info/rfc1712" target="_blank">RFC 1712</a></td>
<td>DNS Encoding of Geographical Location</td>
</tr>
<tr>
<td><a href="//www.rfc-editor.org/info/rfc1713" target="_blank">RFC 1713</a></td>
<td>Tools for DNS debugging</td>
</tr>
<tr>
<td><a href="//www.rfc-editor.org/info/rfc1794" target="_blank">RFC 1794</a></td>
<td>DNS Support for Load Balancing</td>
</tr>
<tr>
<td><a href="//www.rfc-editor.org/info/rfc1876" target="_blank">RFC 1876</a></td>
<td>A Means for Expressing Location Information in the Domain Name System</td>
</tr>
<tr>
<td><a href="//www.rfc-editor.org/info/rfc1912" target="_blank">RFC 1912</a></td>
<td>Common DNS Operational and Configuration Errors</td>
</tr>
<tr>
<td><a href="//www.rfc-editor.org/info/rfc1982" target="_blank">RFC 1982</a></td>
<td>Serial Number Arithmetic</td>
</tr>
<tr>
<td><a href="//www.rfc-editor.org/info/rfc1995" target="_blank">RFC 1995</a></td>
<td>Incremental Zone Transfer in DNS</td>
</tr>
<tr>
<td><a href="//www.rfc-editor.org/info/rfc1996" target="_blank">RFC 1996</a></td>
<td>A Mechanism for Prompt Notification of Zone Changes (DNS NOTIFY)</td>
</tr>
<tr>
<td><a href="//www.rfc-editor.org/info/rfc2136" target="_blank">RFC 2136</a></td>
<td>Dynamic Updates in the Domain Name System (DNS UPDATE)</td>
</tr>
<tr>
<td><a href="//www.rfc-editor.org/info/rfc2163" target="_blank">RFC 2163</a></td>
<td>Using the Internet DNS to Distribute MIXER Conformant Global Address Mapping (MCGAM)</td>
</tr>
<tr>
<td><a href="//www.rfc-editor.org/info/rfc2181" target="_blank">RFC 2181</a></td>
<td>Clarifications to the DNS Specification</td>
</tr>
<tr>
<td><a href="//www.rfc-editor.org/info/rfc2182" target="_blank">RFC 2182</a></td>
<td>Selection and Operation of Secondary DNS Servers</td>
</tr>
<tr>
<td><a href="//www.rfc-editor.org/info/rfc2219" target="_blank">RFC 2219</a></td>
<td>Use of DNS Aliases for Network Services</td>
</tr>
<tr>
<td><a href="//www.rfc-editor.org/info/rfc2230" target="_blank">RFC 2230</a></td>
<td>Key Exchange Delegation Record for the DNS</td>
</tr>
<tr>
<td><a href="//www.rfc-editor.org/info/rfc2247" target="_blank">RFC 2247</a></td>
<td>Using Domains in LDAP/X.500 Distinguished Names</td>
</tr>
<tr>
<td><a href="//www.rfc-editor.org/info/rfc2308" target="_blank">RFC 2308</a></td>
<td>Negative Caching of DNS Queries (DNS NCACHE)</td>
</tr>
<tr>
<td><a href="//www.rfc-editor.org/info/rfc2345" target="_blank">RFC 2345</a></td>
<td>Domain Names and Company Name Retrieval</td>
</tr>
<tr>
<td><a href="//www.rfc-editor.org/info/rfc2352" target="_blank">RFC 2352</a></td>
<td>A Convention For Using Legal Names as Domain Names</td>
</tr>
<tr>
<td><a href="//www.rfc-editor.org/info/rfc2517" target="_blank">RFC 2517</a></td>
<td>Building Directories from DNS: Experiences from WWWSeeker</td>
</tr>
<tr>
<td><a href="//www.rfc-editor.org/info/rfc2535" target="_blank">RFC 2535</a></td>
<td>Domain Name System Security Extensions</td>
</tr>
<tr>
<td><a href="//www.rfc-editor.org/info/rfc2536" target="_blank">RFC 2536</a></td>
<td>DSA KEYs and SIGs in the Domain Name System (DNS)</td>
</tr>
<tr>
<td><a href="//www.rfc-editor.org/info/rfc2539" target="_blank">RFC 2539</a></td>
<td>Storage of Diffie-Hellman Keys in the Domain Name System (DNS)</td>
</tr>
<tr>
<td><a href="//www.rfc-editor.org/info/rfc2540" target="_blank">RFC 2540</a></td>
<td>Detached Domain Name System (DNS) Information</td>
</tr>
<tr>
<td><a href="//www.rfc-editor.org/info/rfc2606" target="_blank">RFC 2606</a></td>
<td>Reserved Top Level DNS Names</td>
</tr>
<tr>
<td><a href="//www.rfc-editor.org/info/rfc2694" target="_blank">RFC 2694</a></td>
<td>DNS extensions to Network Address Translators (DNS_ALG)</td>
</tr>
<tr>
<td><a href="//www.rfc-editor.org/info/rfc2782" target="_blank">RFC 2782</a></td>
<td>A DNS RR for specifying the location of services (DNS SRV)</td>
</tr>
<tr>
<td><a href="//www.rfc-editor.org/info/rfc2826" target="_blank">RFC 2826</a></td>
<td>IAB Technical Comment on the Unique DNS Root</td>
</tr>
<tr>
<td><a href="//www.rfc-editor.org/info/rfc2845" target="_blank">RFC 2845</a></td>
<td>Secret Key Transaction Authentication for DNS (TSIG)</td>
</tr>
<tr>
<td><a href="//www.rfc-editor.org/info/rfc2874" target="_blank">RFC 2874</a></td>
<td>DNS Extensions to Support IPv6 Address Aggregation and Renumbering</td>
</tr>
<tr>
<td><a href="//www.rfc-editor.org/info/rfc2930" target="_blank">RFC 2930</a></td>
<td>Secret Key Establishment for DNS (TKEY RR)</td>
</tr>
<tr>
<td><a href="//www.rfc-editor.org/info/rfc2931" target="_blank">RFC 2931</a></td>
<td>DNS Request and Transaction Signatures ( SIG(0)s )</td>
</tr>
<tr>
<td><a href="//www.rfc-editor.org/info/rfc3007" target="_blank">RFC 3007</a></td>
<td>Secure Domain Name System (DNS) Dynamic Update</td>
</tr>
<tr>
<td><a href="//www.rfc-editor.org/info/rfc3026" target="_blank">RFC 3026</a></td>
<td>Liaison to IETF/ISOC on ENUM</td>
</tr>
<tr>
<td><a href="//www.rfc-editor.org/info/rfc3071" target="_blank">RFC 3071</a></td>
<td>Reflections on the DNS, RFC 1591, and Categories of Domains</td>
</tr>
<tr>
<td><a href="//www.rfc-editor.org/info/rfc3088" target="_blank">RFC 3088</a></td>
<td>OpenLDAP Root Service An experimental LDAP referral service</td>
</tr>
<tr>
<td><a href="//www.rfc-editor.org/info/rfc3110" target="_blank">RFC 3110</a></td>
<td>RSA/SHA-1 SIGs and RSA KEYs in the Domain Name System (DNS)</td>
</tr>
<tr>
<td><a href="//www.rfc-editor.org/info/rfc3123" target="_blank">RFC 3123</a></td>
<td>A DNS RR Type for Lists of Address Prefixes (APL RR)</td>
</tr>
<tr>
<td><a href="//www.rfc-editor.org/info/rfc3130" target="_blank">RFC 3130</a></td>
<td>Notes from the State-Of-The-Technology: DNSSEC</td>
</tr>
<tr>
<td><a href="//www.rfc-editor.org/info/rfc3172" target="_blank">RFC 3172</a></td>
<td>Management Guidelines & Operational Requirements for the Address and Routing Parameter Area Domain ("arpa")</td>
</tr>
<tr>
<td><a href="//www.rfc-editor.org/info/rfc3197" target="_blank">RFC 3197</a></td>
<td>Applicability Statement for DNS MIB Extensions</td>
</tr>
<tr>
<td><a href="//www.rfc-editor.org/info/rfc3225" target="_blank">RFC 3225</a></td>
<td>Indicating Resolver Support of DNSSEC</td>
</tr>
<tr>
<td><a href="//www.rfc-editor.org/info/rfc3226" target="_blank">RFC 3226</a></td>
<td>DNSSEC and IPv6 A6 aware server/resolver message size requirements</td>
</tr>
<tr>
<td><a href="//www.rfc-editor.org/info/rfc3258" target="_blank">RFC 3258</a></td>
<td>Distributing Authoritative Name Servers via Shared Unicast Addresses</td>
</tr>
<tr>
<td><a href="//www.rfc-editor.org/info/rfc3363" target="_blank">RFC 3363</a></td>
<td>Representing Internet Protocol version 6 (IPv6) Addresses in the Domain Name System (DNS)</td>
</tr>
<tr>
<td><a href="//www.rfc-editor.org/info/rfc3364" target="_blank">RFC 3364</a></td>
<td>Tradeoffs in Domain Name System (DNS) Support for Internet Protocol version 6 (IPv6)</td>
</tr>
<tr>
<td><a href="//www.rfc-editor.org/info/rfc3397" target="_blank">RFC 3397</a></td>
<td>Dynamic Host Configuration Protocol (DHCP) Domain Search Option</td>
</tr>
<tr>
<td><a href="//www.rfc-editor.org/info/rfc3403" target="_blank">RFC 3403</a></td>
<td>Dynamic Delegation Discovery System (DDDS) Part Three: The Domain Name System (DNS) Database</td>
</tr>
<tr>
<td><a href="//www.rfc-editor.org/info/rfc3425" target="_blank">RFC 3425</a></td>
<td>Obsoleting IQUERY</td>
</tr>
<tr>
<td><a href="//www.rfc-editor.org/info/rfc3467" target="_blank">RFC 3467</a></td>
<td>Role of the Domain Name System (DNS)</td>
</tr>
<tr>
<td><a href="//www.rfc-editor.org/info/rfc3596" target="_blank">RFC 3596</a></td>
<td>DNS Extensions to Support IP Version 6</td>
</tr>
<tr>
<td><a href="//www.rfc-editor.org/info/rfc3597" target="_blank">RFC 3597</a></td>
<td>Handling of Unknown DNS Resource Record (RR) Types</td>
</tr>
<tr>
<td><a href="//www.rfc-editor.org/info/rfc3645" target="_blank">RFC 3645</a></td>
<td>Generic Security Service Algorithm for Secret Key Transaction Authentication for DNS (GSS-TSIG)</td>
</tr>
<tr>
<td><a href="//www.rfc-editor.org/info/rfc3646" target="_blank">RFC 3646</a></td>
<td>DNS Configuration options for Dynamic Host Configuration Protocol for IPv6 (DHCPv6)</td>
</tr>
<tr>
<td><a href="//www.rfc-editor.org/info/rfc3681" target="_blank">RFC 3681</a></td>
<td>Delegation of E.F.F.3.IP6.ARPA</td>
</tr>
<tr>
<td><a href="//www.rfc-editor.org/info/rfc3832" target="_blank">RFC 3832</a></td>
<td>Remote Service Discovery in the Service Location Protocol (SLP) via DNS SRV</td>
</tr>
<tr>
<td><a href="//www.rfc-editor.org/info/rfc3833" target="_blank">RFC 3833</a></td>
<td>Threat Analysis of the Domain Name System (DNS)</td>
</tr>
<tr>
<td><a href="//www.rfc-editor.org/info/rfc3901" target="_blank">RFC 3901</a></td>
<td>DNS IPv6 Transport Operational Guidelines</td>
</tr>
<tr>
<td><a href="//www.rfc-editor.org/info/rfc3915" target="_blank">RFC 3915</a></td>
<td>Domain Registry Grace Period Mapping for the Extensible Provisioning Protocol (EPP)</td>
</tr>
<tr>
<td><a href="//www.rfc-editor.org/info/rfc4025" target="_blank">RFC 4025</a></td>
<td>A Method for Storing IPsec Keying Material in DNS</td>
</tr>
<tr>
<td><a href="//www.rfc-editor.org/info/rfc4027" target="_blank">RFC 4027</a></td>
<td>Domain Name System Media Types</td>
</tr>
<tr>
<td><a href="//www.rfc-editor.org/info/rfc4033" target="_blank">RFC 4033</a></td>
<td>DNS Security Introduction and Requirements</td>
</tr>
<tr>
<td><a href="//www.rfc-editor.org/info/rfc4034" target="_blank">RFC 4034</a></td>
<td>Resource Records for the DNS Security Extensions</td>
</tr>
<tr>
<td><a href="//www.rfc-editor.org/info/rfc4035" target="_blank">RFC 4035</a></td>
<td>Protocol Modifications for the DNS Security Extensions</td>
</tr>
<tr>
<td><a href="//www.rfc-editor.org/info/rfc4074" target="_blank">RFC 4074</a></td>
<td>Common Misbehavior Against DNS Queries for IPv6 Addresses</td>
</tr>
<tr>
<td><a href="//www.rfc-editor.org/info/rfc4143" target="_blank">RFC 4143</a></td>
<td>Facsimile Using Internet Mail (IFAX) Service of ENUM</td>
</tr>
<tr>
<td><a href="//www.rfc-editor.org/info/rfc4159" target="_blank">RFC 4159</a></td>
<td>Deprecation of "ip6.int"</td>
</tr>
<tr>
<td><a href="//www.rfc-editor.org/info/rfc4183" target="_blank">RFC 4183</a></td>
<td>A Suggested Scheme for DNS Resolution of Networks and Gateways</td>
</tr>
<tr>
<td><a href="//www.rfc-editor.org/info/rfc4185" target="_blank">RFC 4185</a></td>
<td>National and Local Characters for DNS Top Level Domain (TLD) Names</td>
</tr>
<tr>
<td><a href="//www.rfc-editor.org/info/rfc4255" target="_blank">RFC 4255</a></td>
<td>Using DNS to Securely Publish Secure Shell (SSH) Key Fingerprints</td>
</tr>
<tr>
<td><a href="//www.rfc-editor.org/info/rfc4322" target="_blank">RFC 4322</a></td>
<td>Opportunistic Encryption using the Internet Key Exchange (IKE)</td>
</tr>
<tr>
<td><a href="//www.rfc-editor.org/info/rfc4339" target="_blank">RFC 4339</a></td>
<td>IPv6 Host Configuration of DNS Server Information Approaches</td>
</tr>
<tr>
<td><a href="//www.rfc-editor.org/info/rfc4343" target="_blank">RFC 4343</a></td>
<td>Domain Name System (DNS) Case Insensitivity Clarification</td>
</tr>
<tr>
<td><a href="//www.rfc-editor.org/info/rfc4367" target="_blank">RFC 4367</a></td>
<td>What's in a Name: False Assumptions about DNS Names</td>
</tr>
<tr>
<td><a href="//www.rfc-editor.org/info/rfc4386" target="_blank">RFC 4386</a></td>
<td>Internet X.509 Public Key Infrastructure Repository Locator Service</td>
</tr>
<tr>
<td><a href="//www.rfc-editor.org/info/rfc4398" target="_blank">RFC 4398</a></td>
<td>Storing Certificates in the Domain Name System (DNS)</td>
</tr>
<tr>
<td><a href="//www.rfc-editor.org/info/rfc4431" target="_blank">RFC 4431</a></td>
<td>The DNSSEC Lookaside Validation (DLV) DNS Resource Record</td>
</tr>
<tr>
<td><a href="//www.rfc-editor.org/info/rfc4470" target="_blank">RFC 4470</a></td>
<td>Minimally Covering NSEC Records and DNSSEC On-line Signing</td>
</tr>
<tr>
<td><a href="//www.rfc-editor.org/info/rfc4471" target="_blank">RFC 4471</a></td>
<td>Derivation of DNS Name Predecessor and Successor</td>
</tr>
<tr>
<td><a href="//www.rfc-editor.org/info/rfc4472" target="_blank">RFC 4472</a></td>
<td>Operational Considerations and Issues with IPv6 DNS</td>
</tr>
<tr>
<td><a href="//www.rfc-editor.org/info/rfc4501" target="_blank">RFC 4501</a></td>
<td>Domain Name System Uniform Resource Identifiers</td>
</tr>
<tr>
<td><a href="//www.rfc-editor.org/info/rfc4509" target="_blank">RFC 4509</a></td>
<td>Use of SHA-256 in DNSSEC Delegation Signer (DS) Resource Records (RRs)</td>
</tr>
<tr>
<td><a href="//www.rfc-editor.org/info/rfc4635" target="_blank">RFC 4635</a></td>
<td>HMAC SHA (Hashed Message Authentication Code, Secure Hash Algorithm) TSIG Algorithm Identifiers</td>
</tr>
<tr>
<td><a href="//www.rfc-editor.org/info/rfc4690" target="_blank">RFC 4690</a></td>
<td>Review and Recommendations for Internationalized Domain Names (IDNs)</td>
</tr>
<tr>
<td><a href="//www.rfc-editor.org/info/rfc4697" target="_blank">RFC 4697</a></td>
<td>Observed DNS Resolution Misbehavior</td>
</tr>
<tr>
<td><a href="//www.rfc-editor.org/info/rfc4701" target="_blank">RFC 4701</a></td>
<td>A DNS Resource Record (RR) for Encoding Dynamic Host Configuration Protocol (DHCP) Information (DHCID RR)</td>
</tr>
<tr>
<td><a href="//www.rfc-editor.org/info/rfc4702" target="_blank">RFC 4702</a></td>
<td>The Dynamic Host Configuration Protocol (DHCP) Client Fully Qualified Domain Name (FQDN) Option</td>
</tr>
<tr>
<td><a href="//www.rfc-editor.org/info/rfc4703" target="_blank">RFC 4703</a></td>
<td>Resolution of Fully Qualified Domain Name (FQDN) Conflicts among Dynamic Host Configuration Protocol (DHCP) Clients</td>
</tr>
<tr>
<td><a href="//www.rfc-editor.org/info/rfc4704" target="_blank">RFC 4704</a></td>
<td>The Dynamic Host Configuration Protocol for IPv6 (DHCPv6) Client Fully Qualified Domain Name (FQDN) Option</td>
</tr>
<tr>
<td><a href="//www.rfc-editor.org/info/rfc4759" target="_blank">RFC 4759</a></td>
<td>The ENUM Dip Indicator Parameter for the "tel" URI</td>
</tr>
<tr>
<td><a href="//www.rfc-editor.org/info/rfc4892" target="_blank">RFC 4892</a></td>
<td>Requirements for a Mechanism Identifying a Name Server Instance</td>
</tr>
<tr>
<td><a href="//www.rfc-editor.org/info/rfc4955" target="_blank">RFC 4955</a></td>
<td>DNS Security (DNSSEC) Experiments</td>
</tr>
<tr>
<td><a href="//www.rfc-editor.org/info/rfc4956" target="_blank">RFC 4956</a></td>
<td>DNS Security (DNSSEC) Opt-In</td>
</tr>
<tr>
<td><a href="//www.rfc-editor.org/info/rfc4986" target="_blank">RFC 4986</a></td>
<td>Requirements Related to DNS Security (DNSSEC) Trust Anchor Rollover</td>
</tr>
<tr>
<td><a href="//www.rfc-editor.org/info/rfc5001" target="_blank">RFC 5001</a></td>
<td>DNS Name Server Identifier (NSID) Option</td>
</tr>
<tr>
<td><a href="//www.rfc-editor.org/info/rfc5011" target="_blank">RFC 5011</a></td>
<td>Automated Updates of DNS Security (DNSSEC) Trust Anchors</td>
</tr>
<tr>
<td><a href="//www.rfc-editor.org/info/rfc5074" target="_blank">RFC 5074</a></td>
<td>DNSSEC Lookaside Validation (DLV)</td>
</tr>
<tr>
<td><a href="//www.rfc-editor.org/info/rfc5155" target="_blank">RFC 5155</a></td>
<td>DNS Security (DNSSEC) Hashed Authenticated Denial of Existence</td>
</tr>
<tr>
<td><a href="//www.rfc-editor.org/info/rfc5158" target="_blank">RFC 5158</a></td>
<td>6to4 Reverse DNS Delegation Specification</td>
</tr>
<tr>
<td><a href="//www.rfc-editor.org/info/rfc5205" target="_blank">RFC 5205</a></td>
<td>Host Identity Protocol (HIP) Domain Name System (DNS) Extensions</td>
</tr>
<tr>
<td><a href="//www.rfc-editor.org/info/rfc5346" target="_blank">RFC 5346</a></td>
<td>Operational Requirements for ENUM-Based Softswitch Use</td>
</tr>
<tr>
<td><a href="//www.rfc-editor.org/info/rfc5452" target="_blank">RFC 5452</a></td>
<td>Measures for Making DNS More Resilient against Forged Answers</td>
</tr>
<tr>
<td><a href="//www.rfc-editor.org/info/rfc5483" target="_blank">RFC 5483</a></td>
<td>ENUM Implementation Issues and Experiences</td>
</tr>
<tr>
<td><a href="//www.rfc-editor.org/info/rfc5507" target="_blank">RFC 5507</a></td>
<td>Design Choices When Expanding the DNS</td>
</tr>
<tr>
<td><a href="//www.rfc-editor.org/info/rfc5509" target="_blank">RFC 5509</a></td>
<td>Internet Assigned Numbers Authority (IANA) Registration of Instant Messaging and Presence DNS SRV RRs for the Session Initiation Protocol (SIP)</td>
</tr>
<tr>
<td><a href="//www.rfc-editor.org/info/rfc5625" target="_blank">RFC 5625</a></td>
<td>DNS Proxy Implementation Guidelines</td>
</tr>
<tr>
<td><a href="//www.rfc-editor.org/info/rfc5679" target="_blank">RFC 5679</a></td>
<td>Locating IEEE 802.21 Mobility Services Using DNS</td>
</tr>
<tr>
<td><a href="//www.rfc-editor.org/info/rfc5702" target="_blank">RFC 5702</a></td>
<td>Use of SHA-2 Algorithms with RSA in DNSKEY and RRSIG Resource Records for DNSSEC</td>
</tr>
<tr>
<td><a href="//www.rfc-editor.org/info/rfc5782" target="_blank">RFC 5782</a></td>
<td>DNS Blacklists and Whitelists</td>
</tr>
<tr>
<td><a href="//www.rfc-editor.org/info/rfc5864" target="_blank">RFC 5864</a></td>
<td>DNS SRV Resource Records for AFS</td>
</tr>
<tr>
<td><a href="//www.rfc-editor.org/info/rfc5892" target="_blank">RFC 5892</a></td>
<td>The Unicode Code Points and Internationalized Domain Names for Applications (IDNA)</td>
</tr>
<tr>
<td><a href="//www.rfc-editor.org/info/rfc5910" target="_blank">RFC 5910</a></td>
<td>Domain Name System (DNS) Security Extensions Mapping for the Extensible Provisioning Protocol (EPP)</td>
</tr>
<tr>
<td><a href="//www.rfc-editor.org/info/rfc5933" target="_blank">RFC 5933</a></td>
<td>Use of GOST Signature Algorithms in DNSKEY and RRSIG Resource Records for DNSSEC</td>
</tr>
<tr>
<td><a href="//www.rfc-editor.org/info/rfc5936" target="_blank">RFC 5936</a></td>
<td>DNS Zone Transfer Protocol (AXFR)</td>
</tr>
<tr>
<td><a href="//www.rfc-editor.org/info/rfc6014" target="_blank">RFC 6014</a></td>
<td>Cryptographic Algorithm Identifier Allocation for DNSSEC</td>
</tr>
<tr>
<td><a href="//www.rfc-editor.org/info/rfc6097" target="_blank">RFC 6097</a></td>
<td>Local Mobility Anchor (LMA) Discovery for Proxy Mobile IPv6</td>
</tr>
<tr>
<td><a href="//www.rfc-editor.org/info/rfc6106" target="_blank">RFC 6106</a></td>
<td>IPv6 Router Advertisement Options for DNS Configuration</td>
</tr>
<tr>
<td><a href="//www.rfc-editor.org/info/rfc6116" target="_blank">RFC 6116</a></td>
<td>The E.164 to Uniform Resource Identifiers (URI) Dynamic Delegation Discovery System (DDDS) Application (ENUM)</td>
</tr>
<tr>
<td><a href="//www.rfc-editor.org/info/rfc6147" target="_blank">RFC 6147</a></td>
<td>DNS64: DNS Extensions for Network Address Translation from IPv6 Clients to IPv4 Servers</td>
</tr>
<tr>
<td><a href="//www.rfc-editor.org/info/rfc6168" target="_blank">RFC 6168</a></td>
<td>Requirements for Management of Name Servers for the DNS</td>
</tr>
<tr>
<td><a href="//www.rfc-editor.org/info/rfc6186" target="_blank">RFC 6186</a></td>
<td>Use of SRV Records for Locating Email Submission/Access Services</td>
</tr>
<tr>
<td><a href="//www.rfc-editor.org/info/rfc6303" target="_blank">RFC 6303</a></td>
<td>Locally Served DNS Zones</td>
</tr>
<tr>
<td><a href="//www.rfc-editor.org/info/rfc6382" target="_blank">RFC 6382</a></td>
<td>Unique Origin Autonomous System Numbers (ASNs) per Node for Globally Anycasted Services</td>
</tr>
<tr>
<td><a href="//www.rfc-editor.org/info/rfc6394" target="_blank">RFC 6394</a></td>
<td>Use Cases and Requirements for DNS-Based Authentication of Named Entities (DANE)</td>
</tr>
<tr>
<td><a href="//www.rfc-editor.org/info/rfc6418" target="_blank">RFC 6418</a></td>
<td>Multiple Interfaces and Provisioning Domains Problem Statement</td>
</tr>
<tr>
<td><a href="//www.rfc-editor.org/info/rfc6452" target="_blank">RFC 6452</a></td>
<td>The Unicode Code Points and Internationalized Domain Names for Applications (IDNA) - Unicode 6.0</td>
</tr>
<tr>
<td><a href="//www.rfc-editor.org/info/rfc6471" target="_blank">RFC 6471</a></td>
<td>Overview of Best Email DNS-Based List (DNSBL) Operational Practices</td>
</tr>
<tr>
<td><a href="//www.rfc-editor.org/info/rfc6535" target="_blank">RFC 6535</a></td>
<td>Dual-Stack Hosts Using "Bump-in-the-Host" (BIH)</td>
</tr>
<tr>
<td><a href="//www.rfc-editor.org/info/rfc6594" target="_blank">RFC 6594</a></td>
<td>Use of the SHA-256 Algorithm with RSA, Digital Signature Algorithm (DSA), and Elliptic Curve DSA (ECDSA) in SSHFP Resource Records</td>
</tr>
<tr>
<td><a href="//www.rfc-editor.org/info/rfc6604" target="_blank">RFC 6604</a></td>
<td>xNAME RCODE and Status Bits Clarification</td>
</tr>
<tr>
<td><a href="//www.rfc-editor.org/info/rfc6605" target="_blank">RFC 6605</a></td>
<td>Elliptic Curve Digital Signature Algorithm (DSA) for DNSSEC</td>
</tr>
<tr>
<td><a href="//www.rfc-editor.org/info/rfc6641" target="_blank">RFC 6641</a></td>
<td>Using DNS SRV to Specify a Global File Namespace with NFS Version 4</td>
</tr>
<tr>
<td><a href="//www.rfc-editor.org/info/rfc6672" target="_blank">RFC 6672</a></td>
<td>DNAME Redirection in the DNS</td>
</tr>
<tr>
<td><a href="//www.rfc-editor.org/info/rfc6698" target="_blank">RFC 6698</a></td>
<td>The DNS-Based Authentication of Named Entities (DANE) Transport Layer Security (TLS) Protocol: TLSA</td>
</tr>
<tr>
<td><a href="//www.rfc-editor.org/info/rfc6725" target="_blank">RFC 6725</a></td>
<td>DNS Security (DNSSEC) DNSKEY Algorithm IANA Registry Updates</td>
</tr>
<tr>
<td><a href="//www.rfc-editor.org/info/rfc6731" target="_blank">RFC 6731</a></td>
<td>Improved Recursive DNS Server Selection for Multi-Interfaced Nodes</td>
</tr>
<tr>
<td><a href="//www.rfc-editor.org/info/rfc6742" target="_blank">RFC 6742</a></td>
<td>DNS Resource Records for the Identifier-Locator Network Protocol (ILNP)</td>
</tr>
<tr>
<td><a href="//www.rfc-editor.org/info/rfc6762" target="_blank">RFC 6762</a></td>
<td>Multicast DNS</td>
</tr>
<tr>
<td><a href="//www.rfc-editor.org/info/rfc6763" target="_blank">RFC 6763</a></td>
<td>DNS-Based Service Discovery</td>
</tr>
<tr>
<td><a href="//www.rfc-editor.org/info/rfc6781" target="_blank">RFC 6781</a></td>
<td>DNSSEC Operational Practices, Version 2</td>
</tr>
<tr>
<td><a href="//www.rfc-editor.org/info/rfc6804" target="_blank">RFC 6804</a></td>
<td>DISCOVER: Supporting Multicast DNS Queries</td>
</tr>
<tr>
<td><a href="//www.rfc-editor.org/info/rfc6840" target="_blank">RFC 6840</a></td>
<td>Clarifications and Implementation Notes for DNS Security (DNSSEC)</td>
</tr>
<tr>
<td><a href="//www.rfc-editor.org/info/rfc6841" target="_blank">RFC 6841</a></td>
<td>A Framework for DNSSEC Policies and DNSSEC Practice Statements</td>
</tr>
<tr>
<td><a href="//www.rfc-editor.org/info/rfc6844" target="_blank">RFC 6844</a></td>
<td>DNS Certification Authority Authorization (CAA) Resource Record</td>
</tr>
<tr>
<td><a href="//www.rfc-editor.org/info/rfc6889" target="_blank">RFC 6889</a></td>
<td>Analysis of Stateful 64 Translation</td>
</tr>
<tr>
<td><a href="//www.rfc-editor.org/info/rfc6891" target="_blank">RFC 6891</a></td>
<td>Extension Mechanisms for DNS (EDNS(0))</td>
</tr>
<tr>
<td><a href="//www.rfc-editor.org/info/rfc6895" target="_blank">RFC 6895</a></td>
<td>Domain Name System (DNS) IANA Considerations</td>
</tr>
<tr>
<td><a href="//www.rfc-editor.org/info/rfc6912" target="_blank">RFC 6912</a></td>
<td>Principles for Unicode Code Point Inclusion in Labels in the DNS</td>
</tr>
<tr>
<td><a href="//www.rfc-editor.org/info/rfc6927" target="_blank">RFC 6927</a></td>
<td>Variants in Second-Level Names Registered in Top-Level Domains</td>
</tr>
<tr>
<td><a href="//www.rfc-editor.org/info/rfc6944" target="_blank">RFC 6944</a></td>
<td>Applicability Statement: DNS Security (DNSSEC) DNSKEY Algorithm Implementation Status</td>
</tr>
<tr>
<td><a href="//www.rfc-editor.org/info/rfc6950" target="_blank">RFC 6950</a></td>
<td>Architectural Considerations on Application Features in the DNS</td>
</tr>
<tr>
<td><a href="//www.rfc-editor.org/info/rfc6975" target="_blank">RFC 6975</a></td>
<td>Signaling Cryptographic Algorithm Understanding in DNS Security Extensions (DNSSEC)</td>
</tr>
<tr>
<td><a href="//www.rfc-editor.org/info/rfc7043" target="_blank">RFC 7043</a></td>
<td>Resource Records for EUI-48 and EUI-64 Addresses in the DNS</td>
</tr>
<tr>
<td><a href="//www.rfc-editor.org/info/rfc7050" target="_blank">RFC 7050</a></td>
<td>Discovery of the IPv6 Prefix Used for IPv6 Address Synthesis</td>
</tr>
<tr>
<td><a href="//www.rfc-editor.org/info/rfc7051" target="_blank">RFC 7051</a></td>
<td>Analysis of Solution Proposals for Hosts to Learn NAT64 Prefix</td>
</tr>
<tr>
<td><a href="//www.rfc-editor.org/info/rfc7085" target="_blank">RFC 7085</a></td>
<td>Top-Level Domains That Are Already Dotless</td>
</tr>
<tr>
<td><a href="//www.rfc-editor.org/info/rfc7129" target="_blank">RFC 7129</a></td>
<td>Authenticated Denial of Existence in the DNS</td>
</tr>
<tr>
<td><a href="//www.rfc-editor.org/info/rfc7208" target="_blank">RFC 7208</a></td>
<td class="title">Sender Policy Framework (SPF) for Authorizing Use of Domains in Email, Version 1</td>
</tr>
<tr>
<td><a href="//www.rfc-editor.org/info/rfc7216" target="_blank">RFC 7216</a></td>
<td>Location Information Server (LIS) Discovery Using IP Addresses and Reverse DNS</td>
</tr>
<tr>
<td><a href="//www.rfc-editor.org/info/rfc7218" target="_blank">RFC 7218</a></td>
<td>Adding Acronyms to Simplify Conversations about DNS-Based Authentication of Named Entities (DANE)</td>
</tr>
<tr>
<td><a href="//www.rfc-editor.org/info/rfc7250" target="_blank">RFC 7250</a></td>
<td>Using Raw Public Keys in Transport Layer Security (TLS) and Datagram Transport Layer Security (DTLS)</td>
</tr>
<tr>
<td><a href="//www.rfc-editor.org/info/rfc7314" target="_blank">RFC 7314</a></td>
<td>Extension Mechanisms for DNS (EDNS) EXPIRE Option</td>
</tr>
<tr>
<td><a href="//www.rfc-editor.org/info/rfc7344" target="_blank">RFC 7344</a></td>
<td>Automating DNSSEC Delegation Trust Maintenance</td>
</tr>
<tr>
<td><a href="//www.rfc-editor.org/info/rfc7393" target="_blank">RFC 7393</a></td>
<td>Using the Port Control Protocol (PCP) to Update Dynamic DNS</td>
</tr>
<tr>
<td><a href="//www.rfc-editor.org/info/rfc7451" target="_blank">RFC 7451</a></td>
<td>Extension Registry for the Extensible Provisioning Protocol</td>
</tr>
<tr>
<td><a href="//www.rfc-editor.org/info/rfc7477" target="_blank">RFC 7477</a></td>
<td>Child-to-Parent Synchronization in DNS</td>
</tr>
<tr>
<td><a href="//www.rfc-editor.org/info/rfc7489" target="_blank">RFC 7489</a></td>
<td>Domain-based Message Authentication, Reporting, and Conformance (DMARC)</td>
</tr>
<tr>
<td><a href="//www.rfc-editor.org/info/rfc7505" target="_blank">RFC 7505</a></td>
<td>A "Null MX" No Service Resource Record for Domains That Accept No Mail</td>
</tr>
<tr>
<td><a href="//www.rfc-editor.org/info/rfc7534" target="_blank">RFC 7534</a></td>
<td>AS112 Nameserver Operations</td>
</tr>
<tr>
<td><a href="//www.rfc-editor.org/info/rfc7535" target="_blank">RFC 7535</a></td>
<td>AS112 Redirection Using DNAME</td>
</tr>
<tr>
<td><a href="//www.rfc-editor.org/info/rfc7553" target="_blank">RFC 7553</a></td>
<td>The Uniform Resource Identifier (URI) DNS Resource Record</td>
</tr>
<tr>
<td><a href="//www.rfc-editor.org/info/rfc7558" target="_blank">RFC 7558</a></td>
<td>Requirements for Scalable DNS-Based Service Discovery (DNS-SD) / Multicast DNS (mDNS) Extensions</td>
</tr>
<tr>
<td><a href="//www.rfc-editor.org/info/rfc7583" target="_blank">RFC 7583</a></td>