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156 lines
4.7 KiB
156 lines
4.7 KiB
[](https://travis-ci.org/miekg/dns)
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[](https://godoc.org/github.com/miekg/dns)
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# Alternative (more granular) approach to a DNS library
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> Less is more.
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Complete and usable DNS library. All widely used Resource Records are
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supported, including the DNSSEC types. It follows a lean and mean philosophy.
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If there is stuff you should know as a DNS programmer there isn't a convenience
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function for it. Server side and client side programming is supported, i.e. you
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can build servers and resolvers with it.
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We try to keep the "master" branch as sane as possible and at the bleeding edge
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of standards, avoiding breaking changes wherever reasonable. We support the last
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two versions of Go, currently: 1.6 and 1.7.
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# Goals
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* KISS;
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* Fast;
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* Small API, if its easy to code in Go, don't make a function for it.
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# Users
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A not-so-up-to-date-list-that-may-be-actually-current:
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* https://cloudflare.com
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* https://github.com/abh/geodns
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* http://www.statdns.com/
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* http://www.dnsinspect.com/
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* https://github.com/chuangbo/jianbing-dictionary-dns
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* http://www.dns-lg.com/
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* https://github.com/fcambus/rrda
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* https://github.com/kenshinx/godns
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* https://github.com/skynetservices/skydns
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* https://github.com/hashicorp/consul
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* https://github.com/DevelopersPL/godnsagent
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* https://github.com/duedil-ltd/discodns
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* https://github.com/StalkR/dns-reverse-proxy
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* https://github.com/tianon/rawdns
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* https://mesosphere.github.io/mesos-dns/
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* https://pulse.turbobytes.com/
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* https://play.google.com/store/apps/details?id=com.turbobytes.dig
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* https://github.com/fcambus/statzone
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* https://github.com/benschw/dns-clb-go
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* https://github.com/corny/dnscheck for http://public-dns.info/
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* https://namesmith.io
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* https://github.com/miekg/unbound
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* https://github.com/miekg/exdns
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* https://dnslookup.org
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* https://github.com/looterz/grimd
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* https://github.com/phamhongviet/serf-dns
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* https://github.com/mehrdadrad/mylg
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* https://github.com/bamarni/dockness
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* https://github.com/fffaraz/microdns
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Send pull request if you want to be listed here.
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# Features
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* UDP/TCP queries, IPv4 and IPv6;
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* RFC 1035 zone file parsing ($INCLUDE, $ORIGIN, $TTL and $GENERATE (for all record types) are supported;
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* Fast:
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* Reply speed around ~ 80K qps (faster hardware results in more qps);
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* Parsing RRs ~ 100K RR/s, that's 5M records in about 50 seconds;
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* Server side programming (mimicking the net/http package);
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* Client side programming;
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* DNSSEC: signing, validating and key generation for DSA, RSA and ECDSA;
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* EDNS0, NSID, Cookies;
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* AXFR/IXFR;
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* TSIG, SIG(0);
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* DNS over TLS: optional encrypted connection between client and server;
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* DNS name compression;
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* Depends only on the standard library.
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Have fun!
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Miek Gieben - 2010-2012 - <miek@miek.nl>
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# Building
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Building is done with the `go` tool. If you have setup your GOPATH
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correctly, the following should work:
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go get github.com/miekg/dns
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go build github.com/miekg/dns
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## Examples
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A short "how to use the API" is at the beginning of doc.go (this also will show
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when you call `godoc github.com/miekg/dns`).
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Example programs can be found in the `github.com/miekg/exdns` repository.
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## Supported RFCs
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*all of them*
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* 103{4,5} - DNS standard
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* 1348 - NSAP record (removed the record)
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* 1982 - Serial Arithmetic
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* 1876 - LOC record
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* 1995 - IXFR
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* 1996 - DNS notify
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* 2136 - DNS Update (dynamic updates)
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* 2181 - RRset definition - there is no RRset type though, just []RR
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* 2537 - RSAMD5 DNS keys
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* 2065 - DNSSEC (updated in later RFCs)
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* 2671 - EDNS record
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* 2782 - SRV record
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* 2845 - TSIG record
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* 2915 - NAPTR record
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* 2929 - DNS IANA Considerations
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* 3110 - RSASHA1 DNS keys
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* 3225 - DO bit (DNSSEC OK)
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* 340{1,2,3} - NAPTR record
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* 3445 - Limiting the scope of (DNS)KEY
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* 3597 - Unknown RRs
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* 403{3,4,5} - DNSSEC + validation functions
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* 4255 - SSHFP record
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* 4343 - Case insensitivity
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* 4408 - SPF record
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* 4509 - SHA256 Hash in DS
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* 4592 - Wildcards in the DNS
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* 4635 - HMAC SHA TSIG
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* 4701 - DHCID
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* 4892 - id.server
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* 5001 - NSID
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* 5155 - NSEC3 record
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* 5205 - HIP record
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* 5702 - SHA2 in the DNS
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* 5936 - AXFR
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* 5966 - TCP implementation recommendations
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* 6605 - ECDSA
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* 6725 - IANA Registry Update
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* 6742 - ILNP DNS
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* 6840 - Clarifications and Implementation Notes for DNS Security
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* 6844 - CAA record
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* 6891 - EDNS0 update
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* 6895 - DNS IANA considerations
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* 6975 - Algorithm Understanding in DNSSEC
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* 7043 - EUI48/EUI64 records
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* 7314 - DNS (EDNS) EXPIRE Option
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* 7553 - URI record
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* 7858 - DNS over TLS: Initiation and Performance Considerations (draft)
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* 7873 - Domain Name System (DNS) Cookies (draft-ietf-dnsop-cookies)
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* xxxx - EDNS0 DNS Update Lease (draft)
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## Loosely based upon
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* `ldns`
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* `NSD`
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* `Net::DNS`
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* `GRONG`
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