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[](https://travis-ci.org/miekg/dns)
[](https://codecov.io/github/miekg/dns?branch=master)
[](https://goreportcard.com/report/miekg/dns)
[](https://godoc.org/github.com/miekg/dns)
# Alternative (more granular) approach to a DNS library
> Less is more.
Complete and usable DNS library. All widely used Resource Records are supported, including the
DNSSEC types. It follows a lean and mean philosophy. If there is stuff you should know as a DNS
programmer there isn't a convenience function for it. Server side and client side programming is
supported, i.e. you can build servers and resolvers with it.
We try to keep the "master" branch as sane as possible and at the bleeding edge of standards,
avoiding breaking changes wherever reasonable. We support the last two versions of Go.
# Goals
* KISS;
* Fast;
* Small API. If it's easy to code in Go, don't make a function for it.
# Users
A not-so-up-to-date-list-that-may-be-actually-current:
* https://github.com/coredns/coredns
* https://cloudflare.com
* https://github.com/abh/geodns
* http://www.statdns.com/
* http://www.dnsinspect.com/
* https://github.com/chuangbo/jianbing-dictionary-dns
* http://www.dns-lg.com/
* https://github.com/fcambus/rrda
* https://github.com/kenshinx/godns
* https://github.com/skynetservices/skydns
* https://github.com/hashicorp/consul
* https://github.com/DevelopersPL/godnsagent
* https://github.com/duedil-ltd/discodns
* https://github.com/StalkR/dns-reverse-proxy
* https://github.com/tianon/rawdns
* https://mesosphere.github.io/mesos-dns/
* https://pulse.turbobytes.com/
* https://play.google.com/store/apps/details?id=com.turbobytes.dig
* https://github.com/fcambus/statzone
* https://github.com/benschw/dns-clb-go
* https://github.com/corny/dnscheck for http://public-dns.info/
* https://namesmith.io
* https://github.com/miekg/unbound
* https://github.com/miekg/exdns
* https://dnslookup.org
* https://github.com/looterz/grimd
* https://github.com/phamhongviet/serf-dns
* https://github.com/mehrdadrad/mylg
* https://github.com/bamarni/dockness
* https://github.com/fffaraz/microdns
* http://kelda.io
* https://github.com/ipdcode/hades (JD.COM)
* https://github.com/StackExchange/dnscontrol/
* https://www.dnsperf.com/
* https://dnssectest.net/
* https://dns.apebits.com
* https://github.com/oif/apex
* https://github.com/jedisct1/dnscrypt-proxy
* https://github.com/jedisct1/rpdns
* https://github.com/xor-gate/sshfp
* https://github.com/rs/dnstrace
* https://blitiri.com.ar/p/dnss ([github mirror](https://github.com/albertito/dnss))
Send pull request if you want to be listed here.
# Features
* UDP/TCP queries, IPv4 and IPv6;
* RFC 1035 zone file parsing ($INCLUDE, $ORIGIN, $TTL and $GENERATE (for all record types) are supported;
* Fast:
* Reply speed around ~ 80K qps (faster hardware results in more qps);
* Parsing RRs ~ 100K RR/s, that's 5M records in about 50 seconds;
* Server side programming (mimicking the net/http package);
* Client side programming;
* DNSSEC: signing, validating and key generation for DSA, RSA, ECDSA and Ed25519;
* EDNS0, NSID, Cookies;
* AXFR/IXFR;
* TSIG, SIG(0);
* DNS over TLS: optional encrypted connection between client and server;
* DNS name compression;
* Depends only on the standard library.
Have fun!
Miek Gieben - 2010-2012 - <miek@miek.nl>
# Building
Building is done with the `go` tool. If you have setup your GOPATH correctly, the following should
work:
go get github.com/miekg/dns
go build github.com/miekg/dns
## Examples
A short "how to use the API" is at the beginning of doc.go (this also will show
when you call `godoc github.com/miekg/dns`).
Example programs can be found in the `github.com/miekg/exdns` repository.
## Supported RFCs
*all of them*
* 103{4,5} - DNS standard
* 1348 - NSAP record (removed the record)
* 1982 - Serial Arithmetic
* 1876 - LOC record
* 1995 - IXFR
* 1996 - DNS notify
* 2136 - DNS Update (dynamic updates)
* 2181 - RRset definition - there is no RRset type though, just []RR
* 2537 - RSAMD5 DNS keys
* 2065 - DNSSEC (updated in later RFCs)
* 2671 - EDNS record
* 2782 - SRV record
* 2845 - TSIG record
* 2915 - NAPTR record
* 2929 - DNS IANA Considerations
* 3110 - RSASHA1 DNS keys
* 3225 - DO bit (DNSSEC OK)
* 340{1,2,3} - NAPTR record
* 3445 - Limiting the scope of (DNS)KEY
* 3597 - Unknown RRs
* 403{3,4,5} - DNSSEC + validation functions
* 4255 - SSHFP record
* 4343 - Case insensitivity
* 4408 - SPF record
* 4509 - SHA256 Hash in DS
* 4592 - Wildcards in the DNS
* 4635 - HMAC SHA TSIG
* 4701 - DHCID
* 4892 - id.server
* 5001 - NSID
* 5155 - NSEC3 record
* 5205 - HIP record
* 5702 - SHA2 in the DNS
* 5936 - AXFR
* 5966 - TCP implementation recommendations
* 6605 - ECDSA
* 6725 - IANA Registry Update
* 6742 - ILNP DNS
* 6840 - Clarifications and Implementation Notes for DNS Security
* 6844 - CAA record
* 6891 - EDNS0 update
* 6895 - DNS IANA considerations
* 6975 - Algorithm Understanding in DNSSEC
* 7043 - EUI48/EUI64 records
* 7314 - DNS (EDNS) EXPIRE Option
* 7477 - CSYNC RR
* 7828 - edns-tcp-keepalive EDNS0 Option
* 7553 - URI record
* 7858 - DNS over TLS: Initiation and Performance Considerations
* 7871 - EDNS0 Client Subnet
* 7873 - Domain Name System (DNS) Cookies (draft-ietf-dnsop-cookies)
* 8080 - EdDSA for DNSSEC
## Loosely based upon
* `ldns`
* `NSD`
* `Net::DNS`
* `GRONG`
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