【Oracle Database】Oracle RAC（二）：DNS

[root@wallet03?~]#?yum?install?-y?bind

[root@wallet03?~]#?vi?/etc/named.conf
options?{
????????listen-on?port?53?{?192.168.40.36;?};
????????/*?listen-on-v6?port?53?{?::1;?};?*/
????????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?????{?any;?};
????????recursion?yes;
????????dnssec-enable?yes;
????????dnssec-validation?yes;
????????/*?Path?to?ISC?DLV?key?*/
????????bindkeys-file?"/etc/named.iscdlv.key";
????????managed-keys-directory?"/var/named/dynamic";
};
zone?"."?IN?{
????????type?hint;
????????file?"named.ca";
};
zone?"gscaifu.com"?IN?{
????????type?master;
????????file?"gscaifu.com.zone";
};
include?"/etc/named.rfc1912.zones";
include?"/etc/named.root.key";

[root@wallet03?~]#?cd?/var/named
[root@wallet03?named]#?cp?-p?named.localhost?gscaifu.com.zone
[root@wallet03?named]#?vi?gscaifu.com.zone
$TTL?1D
@???????IN?SOA??@?rname.invalid.?(
????????????????????????????????????????0???????;?serial
????????????????????????????????????????1D??????;?refresh
????????????????????????????????????????1H??????;?retry
????????????????????????????????????????1W??????;?expire
????????????????????????????????????????3H?)????;?minimum
?????????????NS?@
?????????????IN?A????192.168.40.36
wallet???????IN?A????192.168.40.101
wallet???????IN?A????192.168.40.102
wallet???????IN?A????192.168.40.103

[root@wallet03?~]#?service?named?start
Generating?/etc/rndc.key:??????????????????????????????????[??OK??]
Starting?named:????????????????????????????????????????????[??OK??]

[root@wallet03?~]#?netstat?-tunlp?|?grep?named
tcp????????0??????0?192.168.40.36:53????????????0.0.0.0:*???????????????LISTEN??????2755/named??????????
tcp????????0??????0?127.0.0.1:953???????????????0.0.0.0:*???????????????LISTEN??????2755/named??????????
tcp????????0??????0?::1:953?????????????????????:::*????????????????????LISTEN??????2755/named??????????
udp????????0??????0?192.168.40.36:53????????????0.0.0.0:*???????????????????????????2755/named???

[root@wallet01?~]#?vi?/etc/resolv.conf?
search?gscaifu.com
nameserver?192.168.40.36

[root@wallet01?~]#?nslookup?wallet.gscaifu.com
Server:?????????192.168.40.36
Address:????????192.168.40.36#53
Name:???wallet.gscaifu.com
Address:?192.168.40.101
Name:???wallet.gscaifu.com
Address:?192.168.40.102
Name:???wallet.gscaifu.com
Address:?192.168.40.103

[root@wallet02?~]#?vi?/etc/resolv.conf?
search?gscaifu.com
nameserver?192.168.40.36

[root@wallet02?~]#?nslookup?wallet.gscaifu.com
Server:?????????192.168.40.36
Address:????????192.168.40.36#53
Name:???wallet.gscaifu.com
Address:?192.168.40.102
Name:???wallet.gscaifu.com
Address:?192.168.40.103
Name:???wallet.gscaifu.com
Address:?192.168.40.101