152 lines
4.5 KiB
Markdown
152 lines
4.5 KiB
Markdown
|
[](https://travis-ci.org/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, currently: 1.5 and 1.6.
|
||
|
|
|
||
|
|
# Goals
|
||
|
|
|
||
|
|
* KISS;
|
||
|
|
* Fast;
|
||
|
|
* Small API, if its 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://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
|
||
|
|
|
||
|
|
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 and ECDSA;
|
||
|
|
* 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
|
||
|
|
* 7553 - URI record
|
||
|
|
* 7858 - DNS over TLS: Initiation and Performance Considerations (draft)
|
||
|
|
* 7873 - Domain Name System (DNS) Cookies (draft-ietf-dnsop-cookies)
|
||
|
|
* xxxx - EDNS0 DNS Update Lease (draft)
|
||
|
|
|
||
|
|
## Loosely based upon
|
||
|
|
|
||
|
|
* `ldns`
|
||
|
|
* `NSD`
|
||
|
|
* `Net::DNS`
|
||
|
|
* `GRONG`
|