Configuración del DNS
Para que todo funcione correctamente deberemos establecer un servidor DNS con las siguientes condiciones:
-
•Que sea un servidor recursivo para la red local.
-
•Que sea un servidor de zona para el dominio bezmi.ies.
Fichero /etc/named.conf
Las partes significativas de este fichero son:
options {
listen-on port 53 { 127.0.0.1; 192.168.10.1;};
listen-on-v6 { none; };
directory "/var/named";
dump-file "/var/named/data/cache_dump.db";
statistics-file "/var/named/data/named_stats.txt";
memstatistics-file "/var/named/data/named_mem_stats.txt";
allow-query { localhost; 192.168.10.0/24; };
recursion yes;
/* Path to ISC DLV key */ bindkeys-file "/etc/named.iscdlv.key"; managed-keys-directory "/var/named/dynamic"; pid-file "/run/named/named.pid"; session-keyfile "/run/named/session.key"; key-directory "/etc/named"; };
key "DHCP_ UPDATER" { algorithm hmac-md5; secret "u/j4WZ0GKzT7HMDyys4drQ=="; };
zone "10.168.192.IN-ADDR.ARPA" IN { type master; file "dynamic/192.168.10.db"; allow-update {key DHCP_UPDATER;192.168.10.1; 127.0.0.1;}; }; zone "bezmi.ies" IN { type master; file "dynamic/bezmi.ies"; allow-update {key DHCP_UPDATER;192.168.10.1; 127.0.0.1;}; }; zone "." IN { type hint; file "named.ca"; }; include "/etc/named.rfc1912.zones";
Fichero /var/named/dynamic/bezmi.ies
$ORIGIN .
$TTL 3600 ; 1 hour
bezmi.ies IN SOA caronte.bezmi.ies. root.caronte.bezmi.ies. (
465 ; serial
10800 ; refresh (3 hours)
3600 ; retry (1 hour)
604800 ; expire (1 week)
3600 ; minimum (1 hour)
)
NS caronte.bezmi.ies.
MX 5 caronte.bezmi.ies.
$ORIGIN bezmi.ies.
$TTL 8192 ; 2 hours 16 minutes 32 seconds
* CNAME caronte
$TTL 3800 ; 1 hour 3 minutes 20 seconds
_ldap._tcp.dc._msdcs SRV 0 0 389 caronte
_kerberos-adm._tcp SRV 0 0 749 caronte
SRV 0 0 389 caronte
$ORIGIN _udp.bezmi.ies.
_kerberos SRV 0 0 88 caronte.bezmi.ies.
_kerberos-master SRV 0 0 88 caronte.bezmi.ies.
_kpasswd SRV 0 0 464 caronte.bezmi.ies.
$ORIGIN bezmi.ies.
caronte A 192.168.10.1
Fichero /var/named/dynamic/192.168.10.db
$ORIGIN . $TTL 3600 ; 1 hour 10.168.192.IN-ADDR.ARPA IN SOA caronte.bezmi.ies. root. caronte.bezmi.ies. ( 360 ; serial 10800 ; refresh (3 hours) 3600 ; retry (1 hour) 604800 ; expire (1 week) 3600 ; minimum (1 hour) ) NS localhost.localdomain. $ORIGIN 10.168.192.IN-ADDR.ARPA. 1 PTR caronte.bezmi.ies.