Oracle RAC SCAN NAME域名解析服务精简版配置

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安装依赖包:

yum install bind*

配置/etc/named.conf

  1. [root@dg01 ~]# cat /etc/named.conf
  2. //
  3. // named.conf
  4. //
  5. // Provided by Red Hat bind package to configure the ISC BIND named(8) DNS
  6. // server as a caching only nameserver (as a localhost DNS resolver only).
  7. //
  8. // See /usr/share/doc/bind*/sample/ for example named configuration files.
  9. //
  10.  
  11. options {
  12. listen-on port 53 { any; };
  13. listen-on-v6 port 53 { ::1; };
  14. directory "/var/named";
  15. dump-file "/var/named/data/cache_dump.db";
  16. statistics-file "/var/named/data/named_stats.txt";
  17. memstatistics-file "/var/named/data/named_mem_stats.txt";
  18. allow-query { any; };
  19. recursion yes;
  20.  
  21. dnssec-enable yes;
  22. dnssec-validation yes;
  23. dnssec-lookaside auto;
  24.  
  25. /* Path to ISC DLV key */
  26. bindkeys-file "/etc/named.iscdlv.key";
  27.  
  28. managed-keys-directory "/var/named/dynamic";
  29. };
  30.  
  31. logging {
  32. channel default_debug {
  33. file "data/named.run";
  34. severity dynamic;
  35. };
  36. };
  37.  
  38. zone "." IN {
  39. type hint;
  40. file "named.ca";
  41. };
  42.  
  43. include "/etc/named.rfc1912.zones";
  44. //include "/etc/named.root.key";
  45. //include "/etc/racdb-scan.zones";

配置/etc/named.rfc1912.zones
  1. [root@dg01 ~]# cat /etc/named.rfc1912.zones
  2. zone "racdb-scan" IN {
  3. type master;
  4. file "racdb-scan_zone";
  5. allow-update { none; };
  6. };
  7.  
  8. zone "56.168.192.in-addr.arpa" IN {
  9. type master;
  10. file "192.168.56.zone";
  11. allow-update { none; };
  12. };

配置/var/named/racdb-scan_zone
  1. [root@dg01 ~]# cat /var/named/racdb-scan_zone
  2. $TTL 86400
  3. @ IN SOA racdb-scan root.racdb-scan. (
  4. 0 ; serial
  5. 1D ; refresh
  6. 1H ; retry
  7. 1W ; expire
  8. 3H ) ; minimum
  9. @ IN NS racdb-scan.
  10. IN A 192.168.56.15
  11. IN A 192.168.56.16
  12. IN A 192.168.56.17

配置/var/named/192.168.56.zone
  1. [root@dg01 ~]# cat /var/named/192.168.56.zone
  2. $TTL 86400
  3. @ IN SOA racdb-scan root.racdb-scan. (
  4. 0 ; serial
  5. 1D ; refresh
  6. 1H ; retry
  7. 1W ; expire
  8. 3H ) ; minimum
  9. @ IN NS racdb-scan.
  10. 15 IN PTR racdb-scan
  11. 16 IN PTR racdb-scan
  12. 17 IN PTR racdb-scan

然后启动服务:
  1. [root@dg01 ~]# service named start
  2. Starting named: named: already running [ OK ]

检查正向解析:
  1. [root@dg01 ~]# nslookup racdb-scan
  2. Server: 192.168.56.21
  3. Address: 192.168.56.21#53
  4.  
  5. Name: racdb-scan
  6. Address: 192.168.56.17
  7. Name: racdb-scan
  8. Address: 192.168.56.15
  9. Name: racdb-scan
  10. Address: 192.168.56.16

检查反向解析:
  1. [root@dg01 ~]# nslookup 192.168.56.15
  2. Server: 192.168.56.21
  3. Address: 192.168.56.21#53
  4.  
  5. 15.56.168.192.in-addr.arpa name = racdb-scan.56.168.192.in-addr.arpa.
  6.  
  7. [root@dg01 ~]# nslookup 192.168.56.16
  8. Server: 192.168.56.21
  9. Address: 192.168.56.21#53
  10.  
  11. 16.56.168.192.in-addr.arpa name = racdb-scan.56.168.192.in-addr.arpa.
  12.  
  13. [root@dg01 ~]# nslookup 192.168.56.17
  14. Server: 192.168.56.21
  15. Address: 192.168.56.21#53
  16.  
  17. 17.56.168.192.in-addr.arpa name = racdb-scan.56.168.192.in-addr.arpa.

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