Additional supplement on automatic synchronization between DNS master and slave servers

1. Three configuration files of DNS

rpm -qc bind                   //查询bind软件配置文件所在路径
/etc/named.conf                //主配置文件
/etc/named/rfc1912.zonrs       //区域配置文件
/var/named/named.localhost     //区域数据配置文件

2. Case introduction

View domain name resolution on the main server(Vim /etc/resolve.conf, plus the address of the master-slave dns server)

Modify the zone data configuration file vim /var/named/gg.com.zone of the main server

View dns acquisition on the main server

View the update time of the data configuration file of the slave serverAnd did not update sync

Modify the zone configuration file and zone data configuration file of the main server

Validation results

==Supplement: named-checkconf check file syntax format==
named-checkconf [/etc/named.conf]