bind-9.1.3-4 (DNS)

Example Network

Location of setting files

Configure

• /etc/named.conf for Master DNS
  

  // generated by named-bootconf.pl options {         directory "/var/named";         /*          * If there is a firewall between you and nameservers you want          * to talk to, you might need to uncomment the query-source          * directive below.  Previous versions of BIND always asked          * questions using port 53, but BIND 8.1 uses an unprivileged          * port by default.          */         // query-source address * port 53; }; // // a caching only nameserver config // controls {         inet 127.0.0.1 allow { localhost; } keys { rndckey; }; }; zone "." IN {         type hint;         file "named.ca"; }; zone "localhost" IN {         type master;         file "localhost.zone";         allow-update { none; }; }; zone "0.0.127.in-addr.arpa" IN {         type master;         file "named.local";         allow-update { none; }; }; include "/etc/rndc.key"; # Master Zone File zone "hoge.edu.bt" { type master; file "hoge.zone"; }; zone "208.157.144.202.in-addr.arpa" { type master; file "202.144.157.208.zone"; };

• /etc/named.conf for Slave DNS
  
  

  // generated by named-bootconf.pl options {         directory "/var/named";         /*          * If there is a firewall between you and nameservers you want          * to talk to, you might need to uncomment the query-source          * directive below.  Previous versions of BIND always asked          * questions using port 53, but BIND 8.1 uses an unprivileged          * port by default.          */         // query-source address * port 53; }; // // a caching only nameserver config // zone "." IN {         type hint;         file "named.ca"; }; zone "localhost" IN {         type master;         file "localhost.zone";         allow-update { none; }; }; zone "0.0.127.in-addr.arpa" IN {         type master;         file "named.local";         allow-update { none; }; }; zone "hoge.edu.bt" {         type slave;         file "hoge.zone";         masters {202.144.157.209;}; }; zone "157.144.202.in-addr.arpa" {         type slave;         file "202.144.157.208.zone";         masters {202.144.157.209;}; };

• /var/named/hoge.zone

  $TTL 3D @      SOA     ns1.hoge.edu.bt. root.ns1.hoge.edu.bt. (                         2000091504      ; serial number                         36000           ; refresh 10 hours                         3600            ; retry   1  hour                         3600000         ; expire  42 days                         360000          ; minimum 100 hours                         ) ; Name Server                 IN      NS      ns1.hoge.edu.bt.                 IN      NS      www.hoge.edu.bt.                 IN      A       202.144.157.209                 IN      MX      10 ns1.hoge.edu.bt.                 IN      MX      20 www.hoge.edu.bt. localhost       IN      A       127.0.0.1 loghost         IN      CNAME   localhost ; Multi Home Host ns1             IN      A       202.144.157.209 pop3            IN      CNAME   ns1 smtp            IN      CNAME   ns1 news            IN      CNAME   ns1 ;               IN      HINFO   INTEL Linux BOX ; Round Robin proxy           IN      A       202.144.157.212 proxy           IN      A       202.144.157.213 ; Multi Home Host www             IN      A       192.168.1.1 www             IN      A       202.144.157.210 ns2             IN      CNAME   www ftp             IN      CNAME   www ntp             IN      CNAME   www ;               IN      HINFO   INTEL Linux BOX gw-hoge          IN      A       202.144.157.222 ;               IN      HINFO   ROUTER CISCO 1600

• /var/named/202.144.157.208.zone (Reverse mapping file)

  $TTL 3D @               IN      SOA     ns1.hoge.edu.bt. root.ns1.hoge.edu.bt. (                         2000091506 ; serial                         36000 ; refresh                         3600 ; retry                         3600000 ; expire                         360000 ; default_ttl                         )                 IN      NS      ns1.hoge.edu.bt. @               IN      PTR     hoge.edu.bt. @               IN      A       255.255.255.240 208             IN      PTR     hoge-net.hoge.edu.bt. 209             IN      PTR     ns1.hoge.edu.bt. 210             IN      PTR     www.hoge.edu.bt. 212             IN      PTR     proxy.hoge.edu.bt. 213             IN      PTR     proxy.hoge.edu.bt. 222             IN      PTR     gw-hoge.hoge.edu.bt.

  Create a sub domain and delegate a domain right

• How to create sub domains (sushi, sashimi, natto) under a domain (hoge.edu.bt). It delegates

  hoge.edu.bt.edu.        IN  NS sushi.hoge.edu.bt. hoge.edu.bt.edu.        IN  NS sashimi.hoge.edu.bt. hoge.edu.bt.edu.        IN  NS natto.hoge.edu.bt. sushi.hoge.edu.bt.      IN  A   192.253.254.1 sashimi.hoge.edu.bt.    IN  A   192.253.254.5 natto.hoge.edu.bt.      IN  A   192.253.20.1

  Setting for DNS Client

• /etc/resolv.conf

  search hoge.edu.bt domain hoge.edu.bt # hoge nameserver 202.144.157.209 nameserver 202.144.157.210

  How to start

  # /etc/init.d/named restart

  How to check

• [nslookup] command

  nslookup Host Name nslookup IP Address nslookup -q Domain Name nslookup -q=ns Domain Name

• How to check

  [root@ns1 /etc]# nslookup Default Server:  ns1.hoge.edu.bt Address:  202.144.157.209 > ns1 Server:  ns1.hoge.edu.bt Address:  202.144.157.209 Name:    ns1.hoge.edu.bt Address:  202.144.157.209 > www Server:  ns1.hoge.edu.bt Address:  202.144.157.209 Name:    www.hoge.edu.bt Addresses:  192.168.1.1, 202.144.157.210 > proxy Server:  ns1.hoge.edu.bt Address:  202.144.157.209 Name:    proxy.hoge.edu.bt Addresses:  202.144.157.212, 202.144.157.213 > set type=mx > hoge.edu.bt Server:  ns1.hoge.edu.bt Address:  202.144.157.209 hoge.edu.bt      preference = 10, mail exchanger = ns1.hoge.edu.bt hoge.edu.bt      preference = 20, mail exchanger = www.hoge.edu.bt hoge.edu.bt      nameserver = ns1.hoge.edu.bt hoge.edu.bt      nameserver = www.hoge.edu.bt ns1.hoge.edu.bt  internet address = 202.144.157.209 www.hoge.edu.bt  internet address = 192.168.1.1 www.hoge.edu.bt  internet address = 202.144.157.210

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