J'ai utilisé unbound comme serveur DNS récursif local. Je viens d'ajouter nsd pour configurer le DNS local du réseau local. nsd écoute sur le port 53530 et cela fonctionne bien :
$ dig @127.0.0.1 data2.datanet.home -p 53530
; <<>> DiG 9.9.2-P2 <<>> @127.0.0.1 data2.datanet.home -p 53530
; (1 server found)
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 59577
;; flags: qr aa rd; QUERY: 1, ANSWER: 1, AUTHORITY: 1, ADDITIONAL: 1
;; WARNING: recursion requested but not available
;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 4096
;; QUESTION SECTION:
;data2.datanet.home. IN A
;; ANSWER SECTION:
data2.datanet.home. 600 IN A 192.168.1.62
;; AUTHORITY SECTION:
datanet.home. 600 IN NS ns1.datanet.home.
;; Query time: 0 msec
;; SERVER: 127.0.0.1#53530(127.0.0.1)
;; WHEN: Mon Jun 15 07:16:24 2015
;; MSG SIZE rcvd: 81Lorsque l'on passe par la liaison locale non consolidée, cela ne fonctionne pas :
$ dig @127.0.0.1 data2.datanet.home
; <<>> DiG 9.9.2-P2 <<>> @127.0.0.1 data2.datanet.home
; (1 server found)
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: SERVFAIL, id: 47645
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 0, ADDITIONAL: 1
;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 4096
;; QUESTION SECTION:
;data2.datanet.home. IN A
;; Query time: 0 msec
;; SERVER: 127.0.0.1#53(127.0.0.1)
;; WHEN: Mon Jun 15 07:18:02 2015
;; MSG SIZE rcvd: 47Voici ce que j'obtiens dans le journal non lié avec la verbosité : 4
Jun 15 06:12:39 pizza.yoderdev.com unbound[1947]: [1947:0] info: validator operate: query router.datanet.home. A IN
Jun 15 06:12:39 pizza.yoderdev.com unbound[1947]: [1947:0] debug: validator: pass to next module
Jun 15 06:12:39 pizza.yoderdev.com unbound[1947]: [1947:0] debug: mesh_run: validator module exit state is module_wait_module
Jun 15 06:12:39 pizza.yoderdev.com unbound[1947]: [1947:0] debug: iterator[module 1] operate: extstate:module_state_initial event:
Jun 15 06:12:39 pizza.yoderdev.com unbound[1947]: [1947:0] debug: process_request: new external request event
Jun 15 06:12:39 pizza.yoderdev.com unbound[1947]: [1947:0] debug: iter_handle processing q with state INIT REQUEST STATE
Jun 15 06:12:39 pizza.yoderdev.com unbound[1947]: [1947:0] info: resolving router.datanet.home. A IN
Jun 15 06:12:39 pizza.yoderdev.com unbound[1947]: [1947:0] debug: request has dependency depth of 0
Jun 15 06:12:39 pizza.yoderdev.com unbound[1947]: [1947:0] info: use stub datanet.home. NS IN
Jun 15 06:12:39 pizza.yoderdev.com unbound[1947]: [1947:0] debug: cache delegation returns delegpt
Jun 15 06:12:39 pizza.yoderdev.com unbound[1947]: [1947:0] info: DelegationPoint<datanet.home.>: 0 names (0 missing), 1 addrs (0 r
Jun 15 06:12:39 pizza.yoderdev.com unbound[1947]: [1947:0] debug: ip4 127.0.0.1 port 53530 (len 16)
Jun 15 06:12:39 pizza.yoderdev.com unbound[1947]: [1947:0] debug: iter_handle processing q with state INIT REQUEST STATE (stage 2)
Jun 15 06:12:39 pizza.yoderdev.com unbound[1947]: [1947:0] info: resolving (init part 2): router.datanet.home. A IN
Jun 15 06:12:39 pizza.yoderdev.com unbound[1947]: [1947:0] info: use stub datanet.home. NS IN
Jun 15 06:12:39 pizza.yoderdev.com unbound[1947]: [1947:0] debug: iter_handle processing q with state INIT REQUEST STATE (stage 3)
Jun 15 06:12:39 pizza.yoderdev.com unbound[1947]: [1947:0] info: resolving (init part 3): router.datanet.home. A IN
Jun 15 06:12:39 pizza.yoderdev.com unbound[1947]: [1947:0] debug: iter_handle processing q with state QUERY TARGETS STATE
Jun 15 06:12:39 pizza.yoderdev.com unbound[1947]: [1947:0] info: processQueryTargets: router.datanet.home. A IN
Jun 15 06:12:39 pizza.yoderdev.com unbound[1947]: [1947:0] debug: processQueryTargets: targetqueries 0, currentqueries 0 sentcount
Jun 15 06:12:39 pizza.yoderdev.com unbound[1947]: [1947:0] info: DelegationPoint<datanet.home.>: 0 names (0 missing), 1 addrs (0 r
Jun 15 06:12:39 pizza.yoderdev.com unbound[1947]: [1947:0] debug: ip4 127.0.0.1 port 53530 (len 16)
Jun 15 06:12:39 pizza.yoderdev.com unbound[1947]: [1947:0] debug: attempt to get extra 3 targets
Jun 15 06:12:39 pizza.yoderdev.com unbound[1947]: [1947:0] debug: skip addr on the donotquery list ip4 127.0.0.1 port 53530 (len 1
Jun 15 06:12:39 pizza.yoderdev.com unbound[1947]: [1947:0] debug: No more query targets, attempting last resort
Jun 15 06:12:39 pizza.yoderdev.com unbound[1947]: [1947:0] debug: configured stub servers failed -- returning SERVFAIL
Jun 15 06:12:39 pizza.yoderdev.com unbound[1947]: [1947:0] debug: store error response in message cache
Jun 15 06:12:39 pizza.yoderdev.com unbound[1947]: [1947:0] debug: return error response SERVFAILEn particulier, qu'est-ce que c'est que ça ? [1947:0] debug : skip addr on the donotquery list ip4 127.0.0.1 port 53530 (len 1) Cela semble être la clé, mais je ne sais vraiment pas pourquoi il dit cela.
Voici l'intégralité de mon fichier unbound.conf :
server:
interface: 127.0.0.1
interface: 192.168.1.50
use-syslog: yes
username: "unbound"
directory: "/etc/unbound"
trust-anchor-file: trusted-key.key
access-control: 192.168.1.0/24 allow
verbosity: 2
local-zone: "1.168.192.in-addr.arpa" nodefault
remote-control:
control-enable: yes
control-interface: 127.0.0.1
control-port: 8953
server-key-file: "/etc/unbound/unbound_server.key"
server-cert-file: "/etc/unbound/unbound_server.pem"
control-key-file: "/etc/unbound/unbound_control.key"
control-cert-file: "/etc/unbound/unbound_control.pem"
stub-zone:
name: "datanet.home"
stub-addr: 127.0.0.1@53530
# stub-first: yes
stub-zone:
name: "1.168.192.in-addr.arpa"
stub-addr: 127.0.0.1@53530nsd.conf contient beaucoup de commentaires, donc je ne sais pas si je dois le coller, mais dans tous les cas, nsd semble fonctionner correctement. C'est à peu près la même chose que l'exemple de conf inclus, sauf que l'on change le port, que l'on active le contrôle et que l'on ajoute les zones.
Je suis perplexe à ce sujet, alors toute idée serait appréciée !
