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Miek Gieben 7f46df6d27 tests: add SortAndCheck helper (#926) 
There was quite some code duplication in a lot of tests to check if
an answer was considered Ok. Created a test.SortAndCheck helper function
that takes care of this.
2017-08-16 15:30:58 +01:00
..
black_lies.go Add middleware/dnssec (#133) 2016-04-26 17:57:11 +01:00
black_lies_test.go Fix import path github.com/miekg/coredns -> github.com/coredns/coredns (#547) 2017-02-22 06:51:47 +00:00
cache.go New cache implementation and prefetch handing in mw/cache (#731) 2017-06-13 12:39:10 -07:00
cache_test.go all: gometalinter (#843) 2017-08-06 05:54:24 -07:00
dnskey.go Fix import path github.com/miekg/coredns -> github.com/coredns/coredns (#547) 2017-02-22 06:51:47 +00:00
dnssec.go New cache implementation and prefetch handing in mw/cache (#731) 2017-06-13 12:39:10 -07:00
dnssec_test.go New cache implementation and prefetch handing in mw/cache (#731) 2017-06-13 12:39:10 -07:00
handler.go Fix import path github.com/miekg/coredns -> github.com/coredns/coredns (#547) 2017-02-22 06:51:47 +00:00
handler_test.go tests: add SortAndCheck helper (#926) 2017-08-16 15:30:58 +01:00
README.md Add metrics for cache hits/misses (#375) 2016-10-31 18:50:50 +00:00
responsewriter.go Fix import path github.com/miekg/coredns -> github.com/coredns/coredns (#547) 2017-02-22 06:51:47 +00:00
rrsig.go Golint2 (#280) 2016-09-23 09:14:12 +01:00
setup.go core: small cleanup (#877) 2017-08-10 05:30:18 -07:00
setup_test.go cidr everywhere: check all middleware (#915) 2017-08-13 18:16:25 +01:00

README.md

dnssec

dnssec enables on-the-fly DNSSEC signing of served data.

Syntax

dnssec [ZONES...]
  • ZONES zones that should be signed. If empty, the zones from the configuration block are used.

If keys are not specified (see below), a key is generated and used for all signing operations. The DNSSEC signing will treat this key a CSK (common signing key), forgoing the ZSK/KSK split. All signing operations are done online. Authenticated denial of existence is implemented with NSEC black lies. Using ECDSA as an algorithm is preferred as this leads to smaller signatures (compared to RSA). NSEC3 is not supported.

A single signing key can be specified by using the key directive.

NOTE: Key generation has not been implemented yet.

TODO(miek): think about key rollovers, and how to do them automatically.

dnssec [ZONES... ] {
    key file KEY...
    cache_capacity CAPACITY
}

  • key file indicates that key file(s) should be read from disk. When multiple keys are specified, RRsets will be signed with all keys. Generating a key can be done with dnssec-keygen: dnssec-keygen -a ECDSAP256SHA256 <zonename>. A key created for zone A can be safely used for zone B.

  • cache_capacity indicates the capacity of the LRU cache. The dnssec middleware uses LRU cache to manage objects and the default capacity is 10000.

Metrics

If monitoring is enabled (via the prometheus directive) then the following metrics are exported:

  • coredns_dnssec_cache_size{type} - total elements in the cache, type is "signature".
  • coredns_dnssec_cache_capacity{type} - total capacity of the cache, type is "signature".
  • coredns_dnssec_cache_hits_total - Counter of cache hits.
  • coredns_dnssec_cache_misses_total - Counter of cache misses.

Examples