History

Miek Gieben fc667b98e0 Fix EDNS0 compliance (#2357 ) * Fix EDNS0 compliance Do SizeAndDo in the server (ScrubWriter) and remove all uses of this from the plugins. Also always do it. This is to get into compliance for https://dnsflagday.net/. The pkg/edns0 now exports the EDNS0 options we understand; this is exported to allow plugins add things there. The rewrite plugin used this to add custom EDNS0 option codes that the server needs to understand. This also needs a new release of miekg/dns because it triggered a race-condition that was basicly there forever. See: * https://github.com/miekg/dns/issues/857 * https://github.com/miekg/dns/pull/859 Running a test instance and pointing the https://ednscomp.isc.org/ednscomp to it shows the tests are now fixed: ~~~ EDNS Compliance Tester Checking: 'miek.nl' as at 2018-12-01T17:53:15Z miek.nl. @147.75.204.203 (drone.coredns.io.): dns=ok edns=ok edns1=ok edns@512=ok ednsopt=ok edns1opt=ok do=ok ednsflags=ok docookie=ok edns512tcp=ok optlist=ok miek.nl. @2604:1380:2002:a000::1 (drone.coredns.io.): dns=ok edns=ok edns1=ok edns@512=ok ednsopt=ok edns1opt=ok do=ok ednsflags=ok docookie=ok edns512tcp=ok optlist=ok All Ok Codes ok - test passed. ~~~ Signed-off-by: Miek Gieben <miek@miek.nl> Signed-off-by: Miek Gieben <miek@miek.nl> * typos in comments Signed-off-by: Miek Gieben <miek@miek.nl>		2018-12-06 21:18:11 +00:00
..
chaos.go	Fix EDNS0 compliance (#2357 )	2018-12-06 21:18:11 +00:00
chaos_test.go	all: fix plugin import ordering (#1717 )	2018-04-22 08:34:35 +01:00
log_test.go	Clean up tests logging (#1979 )	2018-07-19 16:23:06 +01:00
OWNERS	Add OWNERS file (#1486 )	2018-02-08 10:55:51 +00:00
README.md	Manual pages (#1346 )	2018-01-04 12:53:07 +00:00
setup.go	Remove the word middleware (#1067 )	2017-09-14 09:36:06 +01:00
setup_test.go	Remove the word middleware (#1067 )	2017-09-14 09:36:06 +01:00

README.md

chaos

Name

chaos - allows for responding to TXT queries in the CH class.

Description

This is useful for retrieving version or author information from the server by querying a TXT record for a special domainname in the CH class.

Syntax

chaos [VERSION] [AUTHORS...]

VERSION is the version to return. Defaults to CoreDNS-<version>, if not set.
AUTHORS is what authors to return. No default.

Note that you have to make sure that this plugin will get actual queries for the following zones: version.bind, version.server, authors.bind, hostname.bind and id.server.

Examples

Specify all the zones in full.

version.bind version.server authors.bind hostname.bind id.server {
    chaos CoreDNS-001 info@coredns.io
}

Or just default to .:

.  {
    chaos CoreDNS-001 info@coredns.io
}

And test with dig:

% dig @localhost CH TXT version.bind
...
;; ANSWER SECTION:
version.bind.		0	CH	TXT	"CoreDNS-001"
...