DNS主从同步

安装软件

主配置中完成DNS解析：192.168.131.134

[root@localhost ~]# mount /dev/sr0 /mnt
[root@localhost ~]# vim /etc/yum.repos.d/myrepo.repo
[base]
name=base
baseurl=/mnt/BaseOS
gpgchcek=0
enable=1
[base2]
name=base2
baseurl=/mnt/AppStream
gpgchcek=0
enable=1 //cat /etc/yum.repos.d/myrepo.repo可查看仓库

[root@localhost ~]# yum install bind -y
 

[root@localhost ~]# systemctl start named
[root@localhost ~]# vim /etc/named.conf
options {
        listen-on port 53 { any; };
        directory       "/var/named";
        allow-query     { any; };
allow-transfer  { 192.168.5.135; };   #转发给哪个从dns
}

zone "deng.com" IN {
        type master;
        file "named.deng.com";
};

zone "131.168.192.in-addr.arpa" IN {
         type master;
        file "named.192.168.131.zone";
};
 

[root@localhost ~]# cp  -a  /var/named/named.localhost     /var/named/named.deng.com
[root@localhost ~]# cp  -a  /var/named/named.localhost     /var/named/named.192.168.131.zone

[root@localhost ~]# vim /var/named/named.deng.com

[root@localhost ~]# vim /var/named/named.192.168.131.zone

[root@localhost ~]# systemctl  restart named
[root@localhost ~]# systemctl stop firewalld

从配置：192.168.131.135

[root@localhost ~]#  yum  install bind  -y
（若安装有问题则：# rpm --import   /mnt/RPM-GPG-KEY-redhat-*）
[root@localhost ~]# systemctl  start named
[root@localhost ~]# vim /etc/named.conf
options {

        listen-on port 53 { any; };

        directory       "/var/named";

        allow-query     { any; };

}

zone "deng.com." IN {
        type slave;
                masters{192.168.131.134;};
                file "slaves/named.deng.com";
};

zone "131.168.192.in-addr.arpa" IN {
        type slave;
        masters { 192.168.5.129; };
        file "slaves/named.192.168.5.zone";
};

 

[root@localhost ~]# systemctl  restart named
[root@localhost ~]# systemctl stop firewalld

测试：
主
[root@localhost ~]# nslookup www 192.168.131.135
Server:         192.168.131.135
Address:        192.168.131.135#53

** server can't find www: NXDOMAIN

从
[root@localhost ~]# nslookup xixi.deng.com 192.168.131.134
Server:         192.168.131.134
Address:        192.168.131.134#53

Name:   xixi.deng.com
Address: 192.168.131.135

增量传输：
增量同步

主：
[root@localhost ~]#vim /var/named/named.deng.com
                                        1       ; serial
[root@localhost ~]# vim /var/named/named.192.168.131.zone
                                        1       ; serial

[root@localhost ~]# systemctl  restart named

从：
手动增量同步
[root@localhost ~]# rndc refresh 131.168.192.in-addr.arpa
zone refresh queued
[root@localhost ~]# rndc refresh deng.com
zone refresh queued