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verificaciones-powerdns.md

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Verificaciones funcionamiento PowerDNS

Iniciado correctamente

sudo systemctl status pdns

Accesible

  • no atiende en localhost
dig a www.example.com @127.0.0.1
; <<>> DiG 9.16.13-Debian <<>> a www.example.com @127.0.0.1
;; global options: +cmd
;; connection timed out; no servers could be reached
  • atiende en la interfaz de servicio en la red infra
dig a www.example.com @192.168.44.10
; <<>> DiG 9.16.13-Debian <<>> a www.example.com @192.168.44.10
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: REFUSED, id: 16595
;; flags: qr rd; QUERY: 1, ANSWER: 0, AUTHORITY: 0, ADDITIONAL: 1
;; WARNING: recursion requested but not available

;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 1680
;; QUESTION SECTION:
;www.example.com.		IN	A

;; Query time: 0 msec
;; SERVER: 192.168.44.10#53(192.168.44.10)
;; WHEN: Thu Apr 15 15:55:24 UTC 2021
;; MSG SIZE  rcvd: 44
  • tampoco atiende en la interfaz de magmt
dig a www.example.com @192.168.33.10

Creamos una zona y agregamos registros

  • creamos la zona example.com con nameserver ns1.example.com
sudo -u pdns pdnsutil create-zone example.com ns1.example.com
Creating empty zone 'example.com'
Also adding one NS record
  • agregamos registro MX
sudo -u pdns pdnsutil add-record example.com '' MX '25 mail.example.com'
New rrset:
example.com. IN MX 3600 25 mail.example.com
  • agregamos registro A
sudo -u pdns pdnsutil add-record example.com. www A 192.168.88.1
New rrset:
www.example.com. IN A 3600 192.168.88.1

Consultamos los registros recién agregados

dig +short www.example.com @192.168.44.10
192.168.88.1

dig +short example.com MX @192.168.44.10
25 mail.example.com.
  • si no usamos la opción +short queda:
dig www.example.com @192.168.44.10
; <<>> DiG 9.16.13-Debian <<>> www.example.com @192.168.44.10
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 37332
;; flags: qr aa rd; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 1
;; WARNING: recursion requested but not available

;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 1680
;; QUESTION SECTION:
;www.example.com.		IN	A

;; ANSWER SECTION:
www.example.com.	3600	IN	A	192.168.88.1

;; Query time: 0 msec
;; SERVER: 192.168.44.10#53(192.168.44.10)
;; WHEN: Thu Apr 15 16:04:12 UTC 2021
;; MSG SIZE  rcvd: 60

Referencias