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Requisitos Previos.: DNS Bind

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DNS Bind

Indispensable haber cumplido con los requisitos previos. http://www.isc.org/ ftp://ftp.isc.org/isc/bind9/9.2.3/bind-9.2.3.tar.gz gunzip -dc <bind-versin.tar.gz> | tar xvf cd <bind-versin> export PATH=$PATH:/usr/ccs/bin export CC=gcc ./configure make make install Bajar el archivo de los ROOT name servers ftp://ftp.internic.org/domain/named.root Crear el directorio para los archivos del DNS mkdir -p /etc/named Copiar el archivo named.root que bajamos de internet a este directorio cp named.root /etc/named Generar el archivo /etc/named.conf como mnimo con lo siguiente: options { directory "/etc/named"; pid-file "named.pid"; };

zone "0.0.127.in-addr.arpa" { type master; file "127.0.0.revzone"; notify no; }; zone "." { type hint; file "named.root"; }; Ejecutar el binario que se gener /usr/local/sbin/named Para verificar que este funcionando

1.- Revisar el /var/adm/messages grep named /var/adm/messages Mar 6 15:23:58 hosts named[27918]: [ID 873579 Mar 6 15:23:58 hosts named[27918]: [ID 873579 /etc/rndc.key: file not found Mar 6 15:23:58 hosts named[27918]: [ID 873579 command channel 127.0.0.1#953: file not found Mar 6 15:23:58 hosts named[27918]: [ID 873579 /etc/rndc.key: file not found Mar 6 15:23:58 hosts named[27918]: [ID 873579 command channel ::1#953: file not found Mar 6 15:23:58 hosts named[27918]: [ID 873579 addr.arpa/IN: loading master file 127.0.0.revzon e: file not found 2.- Hacer una consulta al dns recin instalado nslookup Note: nslookup is deprecated and may be removed from future releases. Consider using the `dig' or `host' programs instead. Run nslookup with the `-sil[ent]' option to prevent this message from appearing. > server 127.0.0.1 Default server: 127.0.0.1 Address: 127.0.0.1#53 > www.oracle.com Server: 127.0.0.1 Address: 127.0.0.1#53 Non-authoritative answer: Name: www.oracle.com Address: 148.87.9.44 > dig @127.0.0.1 oracle.com ; <<>> DiG 9.2.3 <<>> @127.0.0.1 oracle.com ;; global options: printcmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 19720 ;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 4, ADDITIONAL: 4 ;; QUESTION SECTION: ;oracle.com. IN A ;; ANSWER SECTION: oracle.com. 7200 IN A 148.87.9.44 daemon.notice] starting BIND 9.2.3 daemon.error] none:0: open: daemon.notice] couldn't add daemon.error] none:0: open: daemon.notice] couldn't add daemon.error] zone 0.0.127.in-

;; AUTHORITY SECTION: oracle.com. 10640 IN NS oracle.com. 10640 IN NS oracle.com. 10640 IN NS oracle.com. 10640 IN NS

udns2.ultradns.net. ns1.oracle.com. ns4.oracle.com. udns1.ultradns.net.

;; ADDITIONAL SECTION: ns1.oracle.com. 10640 IN A 148.87.1.20 ns4.oracle.com. 10640 IN A 148.87.112.100 udns1.ultradns.net. 172640 IN A 204.69.234.1 udns2.ultradns.net. 172640 IN A 204.74.101.1 ;; ;; ;; ;; Query time: 129 msec SERVER: 127.0.0.1#53(127.0.0.1) WHEN: Thu Mar 4 20:42:13 2004 MSG SIZE rcvd: 196

Para que una mquina use el nuevo DNS. Editar el /etc/resolv.conf nameserver ip.del.servidor <-------- DNS primario nameserver 148.202.1.29 <-------- DNS secundario (usado solo si el 1rio no contesta) nameserver 148.202.3.5 <-------- DNS N

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