[dns-operations] Introducing CNAME Flattening: RFC-Compliant CNAMEs at a Domain's Root
Mark Andrews
marka at isc.org
Sat Apr 5 22:44:37 UTC 2014
The packaging system uses it.
; <<>> DiG 9.10.0b2 <<>> _http._tcp.pkg.freebsd.org SRV
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 8334
;; flags: qr rd ra; QUERY: 1, ANSWER: 4, AUTHORITY: 3, ADDITIONAL: 2
;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 4096
;; QUESTION SECTION:
;_http._tcp.pkg.freebsd.org. IN SRV
;; ANSWER SECTION:
_http._tcp.pkg.freebsd.OrG. 3485 IN SRV 50 10 80 pkg0.bme.freebsd.org.
_http._tcp.pkg.freebsd.OrG. 3485 IN SRV 10 10 80 pkg0.isc.freebsd.org.
_http._tcp.pkg.freebsd.OrG. 3485 IN SRV 90 10 80 pkg0.ydx.freebsd.org.
_http._tcp.pkg.freebsd.OrG. 3485 IN SRV 20 10 80 pkg0.nyi.freebsd.org.
;; AUTHORITY SECTION:
pkg.freebsd.OrG. 3484 IN NS gns0.freebsd.org.
pkg.freebsd.OrG. 3484 IN NS gns1.freebsd.org.
pkg.freebsd.OrG. 3484 IN NS gns2.freebsd.org.
;; ADDITIONAL SECTION:
gns0.freebsd.OrG. 3484 IN A 8.8.178.30
;; Query time: 0 msec
;; SERVER: 127.0.0.1#53(127.0.0.1)
;; WHEN: Sun Apr 06 08:41:31 EST 2014
;; MSG SIZE rcvd: 319
In message <66433BBC-6F36-40D0-A015-74BE8BFB8EB1 at conundrum.com>, Matthew Pounset
t writes:
>
> On Apr 5, 2014, at 17:10 , Doug Barton <dougb at dougbarton.us> wrote:
>
> > On 04/05/2014 01:51 PM, Matthew Pounsett wrote:
> >>
> >> On Apr 4, 2014, at 23:26 , Mark Andrews <marka at isc.org> wrote:
> >>
> >>> FreeBSD is using _http._tcp today for some of their services.
> >>
> >> Do you know for which ones?
> >
> > portaudit for one.
>
> ; <<>> DiG 9.8.3-P1 <<>> IN SRV _http._tcp.portaudit.freebsd.org
> ;; global options: +cmd
> ;; Got answer:
> ;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 4991
> ;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0
>
>
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--
Mark Andrews, ISC
1 Seymour St., Dundas Valley, NSW 2117, Australia
PHONE: +61 2 9871 4742 INTERNET: marka at isc.org
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