Eu tenho um PC com o Arch Linux (4.7.2-1-ARCH) nele. O PC usa o DHCP para obter seu IP, mas usa um servidor DNS diferente que eu configurei através do systemd-resolved. Quando eu uso o comando dig com um domínio que tem um registro CNAME, o registro A associado está ausente. Se eu usar cavar com o servidor configurado manualmente, o registro A está lá. Alguma idéia por que o systemd-resolvido altera os registros do DNS?
Se precisar de informações adicionais, avise-nos.
Aqui está minha configuração de rede (systemd-networkd)
[Match]
Name=ens18
[Network]
DNS=10.0.0.18
DHCP=ipv4
[DHCPv4]
UseHostname=false
UseDNS=false
resolv.conf:
# This is a static resolv.conf file for connecting local clients to
# systemd-resolved via its DNS stub listener on 127.0.0.53.
#
# Third party programs must not access this file directly, but only through the
# symlink at /etc/resolv.conf. To manage resolv.conf(5) in a different way,
# replace this symlink by a static file or a different symlink.
#
# See systemd-resolved.service(8) for details about the supported modes of
# operation for /etc/resolv.conf.
nameserver 127.0.0.53
dig api.pushbullet.com:
; <<>> DiG 9.10.4-P2 <<>> api.pushbullet.com
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 59038
;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 1
;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 65494
;; QUESTION SECTION:
;api.pushbullet.com. IN A
;; ANSWER SECTION:
api.pushbullet.com. 186 IN CNAME ghs-svc-https-c573.ghs-ssl.googlehosted.com.
;; Query time: 0 msec
;; SERVER: 127.0.0.53#53(127.0.0.53)
;; WHEN: Son Sep 11 01:17:57 CEST 2016
;; MSG SIZE rcvd: 101
dig [email protected]:
; <<>> DiG 9.10.4-P2 <<>> api.pushbullet.com @10.0.0.18
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 33081
;; flags: qr rd ra; QUERY: 1, ANSWER: 2, AUTHORITY: 13, ADDITIONAL: 1
;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 4096
;; QUESTION SECTION:
;api.pushbullet.com. IN A
;; ANSWER SECTION:
api.pushbullet.com. 184 IN CNAME ghs-svc-https-c573.ghs-ssl.googlehosted.com.
ghs-svc-https-c573.ghs-ssl.googlehosted.com. 282 IN A 72.14.247.65
;; AUTHORITY SECTION:
. 509182 IN NS j.root-servers.net.
. 509182 IN NS d.root-servers.net.
. 509182 IN NS a.root-servers.net.
. 509182 IN NS l.root-servers.net.
. 509182 IN NS g.root-servers.net.
. 509182 IN NS b.root-servers.net.
. 509182 IN NS m.root-servers.net.
. 509182 IN NS i.root-servers.net.
. 509182 IN NS f.root-servers.net.
. 509182 IN NS h.root-servers.net.
. 509182 IN NS e.root-servers.net.
. 509182 IN NS k.root-servers.net.
. 509182 IN NS c.root-servers.net.
;; Query time: 0 msec
;; SERVER: 10.0.0.18#53(10.0.0.18)
;; WHEN: Son Sep 11 01:17:59 CEST 2016
;; MSG SIZE rcvd: 328