˵

1Ϊlab.infosec, IPΪ192.168.101,
    
     192.168.101.100 ---- dns/mail.lab.jadebird ----еöڸû
     192.168.101.50  ---- client.lab.jadebird
     192.168.101.1   ---- gateway.lab.jadebird

2ΪЧ DNSnamed.conf
     forwarders { 162.105.129.27;}; //ⲿDNS Serverת
     forward only;
   ڱصĻΪDNS server ⲿЧ

3Ŀ¼Ϊ

    named.conf  ---> /etc/named.conf
    named.tgz   ---> /var/named
