DNS 1

 sudo apt install -y bind9

sudo ufw allow bind9

systemctl status named

sudo nano /etc/bind/named.conf.options

...

forwarders {

8.8.8.8;

8.8.4.4;

};

...

named-checkconf

sudo systemctl reload named

~$ nslookup google.com localhost

Server: localhost

Address: 127.0.0.1#53

Non-authoritative answer:

Name: google.com

Address: 142.250.184.14

Name: google.com

Address: 2a00:1450:4003:806::200e

sudo nano /etc/bind/db.red.lan

$TTL 1D

@ IN SOA ns.red.lan. instalador.red.lan. (

1 ; serial

604800 ; refresh

86400 ; retry

2419200 ; expiration

604800 ; TTL negative cache

)

; Registros NS (Servidores de nombres)

@ IN NS ns.red.lan.

; Registros A

ns IN A 192.168.1.143

router IN A 192.168.1.1

pi IN A 192.168.1.130

puesto1 IN A 192.168.1.151

puesto2 IN A 192.168.1.152

$TTL 1D

@ IN SOA ns.red.lan. instalador.red.lan. (

1 ; serial

604800 ; refresh

86400 ; retry

2419200 ; expiration

604800 ; TTL negative cache

)

; Registros NS (Servidores de nombres)

@ IN NS ns.red.lan.

; Registros A

ns IN A 192.168.1.143

router IN A 192.168.1.1

pi IN A 192.168.1.130

puesto1 IN A 192.168.1.151

puesto2 IN A 192.168.1.152

named-checkzone red.lan /etc/bind/db.red.lan

sudo nano /etc/bind/named.conf.local

zone "red.lan" IN {

type master;

file "/etc/bind/db.red.lan";

};

sudo systemctl reload named

INVERSA

sudo nano /etc/bind/db.1.168.192

$TTL 1D

@ IN SOA red.lan. root.red.lan. (

0 ; serial

604800 ; refresh

86400 ; retry

2419200 ; expires

604800 ; TTL negative cache

)

@ IN NS ns.red.lan.

; Registros PTR

143 IN PTR ns.red.lan.

1 IN PTR router.red.lan.

130 IN PTR pi.red.lan.

151 IN PTR puesto1.red.lan.

152 IN PTR puesto2.red.lan.

named-checkzone 1.168.192 /etc/bind/db.1.168.192

sudo nano /etc/bind/named.conf.local

...

zone "1.168.192.in-addr.arpa" {

type master;

file "/etc/bind/db.1.168.192";

};

sudo systemctl reload named

nslookup 192.168.1.1 192.168.1.143