Linux: Configurando um servidor DNS
Vamos configurar um servidor DNS Bind para resolução de nomes da nossa rede.
Instalando o Servidor BIND
Opcional: Primeiro vamos instalar o servidor DHCP
# yum -y install bind
Configurando o Servidor DHCP
Na configuração abaixo eu faço a atualização dinâmica no servidor de DNS Bind e suporte ao Active Directory
1. Configurando o named.conf -> BIND: Configurando o arquivo named.conf
Conclusão
Reinicie o servidor para pegar as configurações
# service named restart
Se tudo correr bem, no /var/log/messages deve aparecer algo semelhante a:
Feb 22 11:58:42 myserver named[24585]: starting BIND 9.3.3rc2 -u named Feb 22 11:58:42 myserver named[24585]: found 2 CPUs, using 2 worker threads Feb 22 11:58:42 myserver named[24585]: loading configuration from '/etc/named.conf' Feb 22 11:58:42 myserver named[24585]: listening on IPv4 interface lo, 127.0.0.1#53 Feb 22 11:58:42 myserver named[24585]: listening on IPv4 interface eth0, 192.168.1.10#53 Feb 22 11:58:42 myserver named[24585]: zone 'meudominio.com.br' allows updates by IP address, which is insecure Feb 22 11:58:42 myserver named[24585]: zone '1.168.192.in-addr.arpa' allows updates by IP address, which is insecure Feb 22 11:58:42 myserver named[24585]: zone '_msdcs.meudominio.com.br' allows updates by IP address, which is insecure Feb 22 11:58:42 myserver named[24585]: zone '_sites.meudominio.com.br' allows updates by IP address, which is insecure Feb 22 11:58:42 myserver named[24585]: zone '_tcp.meudominio.com.br' allows updates by IP address, which is insecure Feb 22 11:58:42 myserver named[24585]: zone '_udp.meudominio.com.br' allows updates by IP address, which is insecure Feb 22 11:58:42 myserver named[24585]: command channel listening on 127.0.0.1#953 Feb 22 11:58:42 myserver named[24585]: zone 0.in-addr.arpa/IN: loaded serial 42 Feb 22 11:58:42 myserver named[24585]: zone 0.0.127.in-addr.arpa/IN: loaded serial 1997022700 Feb 22 11:58:42 myserver named[24585]: zone 1.168.192.in-addr.arpa/IN: loaded serial 2008021903 Feb 22 11:58:42 myserver named[24585]: zone 255.in-addr.arpa/IN: loaded serial 42 Feb 22 11:58:42 myserver named[24585]: zone 0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.ip6.arpa/IN: loaded serial 1997022700 Feb 22 11:58:43 myserver named[24585]: zone meudominio.com.br/IN: loaded serial 2008022203 Feb 22 11:58:43 myserver named[24585]: zone _msdcs.meudominio.com.br/IN: loaded serial 2008022101 Feb 22 11:58:43 myserver named[24585]: zone _sites.meudominio.com.br/IN: loaded serial 2008022101 Feb 22 11:58:43 myserver named[24585]: zone _tcp.meudominio.com.br/IN: loaded serial 2008022101 Feb 22 11:58:43 myserver named[24585]: zone _udp.meudominio.com.br/IN: loaded serial 2008022101 Feb 22 11:58:43 myserver named[24585]: zone localdomain/IN: loaded serial 42 Feb 22 11:58:43 myserver named[24585]: zone localhost/IN: loaded serial 42 Feb 22 11:58:43 myserver named[24585]: running