pdns 域名绑定 IP 故障备忘

当前环境

    a.v.com  1.1.1.1
    b.v.com  2.2.2.2


希望绑域名  y.v.com  能够嗟系 1.1.1.1 及 2.2.2.2 以实现 DNS 负载均衡


错误做法

    mysql> insert into records (domain_id, name, type, content, ttl) values ( 1,'y.v.com', 'CNAME','a.v.com,'360');
    Query OK, 1 row affected (0.00 sec)
    
    mysql> insert into records (domain_id, name, type, content, ttl) values ( 1,'y.v.com', 'CNAME','b.v.com','360');
    Query OK, 1 row affected (0.00 sec)


正确做法

    mysql> insert into records (domain_id, name, type, content, ttl) values ( 1,'y.v.com', 'A','1.1.1.1','360');
    Query OK, 1 row affected (0.00 sec)
    
    mysql> insert into records (domain_id, name, type, content, ttl) values ( 1,'y.v.com', 'A','1.1.1.2','360');
    Query OK, 1 row affected (0.00 sec)
    
    mysql> update records set content='pdns.vclound.com admin.pdns.vclound.com 2609 1200 7200 64800' where id=1;
    Query OK, 1 row affected (0.00 sec)



客户端测试效果如下


   [root@hh-yun-puppet-129021 named]#  nslookup  yum.vclound.com

    Server:         10.19.129.21
    Address:        10.19.129.21#53
    
    Name:   yum.vclound.com
    Address: 10.19.129.22
    Name:   yum.vclound.com
    Address: 10.19.129.21

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