dns主从配置

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安装bind软件
yum -y install bind
配置Master DNS
//
// named.conf
//
// Provided by Red Hat bind package to configure the ISC BIND named(8) DNS
// server as a caching only nameserver (as a localhost DNS resolver only).
//
// See /usr/share/doc/bind*/sample/ for example named configuration files.
//
options {
        listen-on port 53 { 192.168.10.249; };
        //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;
 
        forwarders { 218.2.135.1; 114.114.114.114; };
        dnssec-enable no;
        //dnssec-validation yes;
        //dnssec-lookaside auto;
        /* Path to ISC DLV key */
        //bindkeys-file "/etc/named.iscdlv.key";
        //managed-keys-directory "/var/named/dynamic";
};
logging {
        channel default_debug {
                file "data/named.run";
                severity dynamic;
        };
};
zone "." IN {
        type hint;
        file "named.ca";
};
include "/etc/named.rfc1912.zones";
include "/etc/named.laohulab.zones";
//include "/etc/named.root.key";
 
 
zone "laohulab.com" IN {
       type master;
       file "laohulab.com.zone";
       allow-transfer { 192.168.10.250; };
       notify yes;
       also-notify { 192.168.10.250; };
};
zone
"1.168.192.in-addr.arpa" IN {
       type master;
       file "192.168.1.zone";
       allow-transfer { 192.168.10.250; };
       notify yes;
       also-notify { 192.168.10.250; };
};
配置Slave DNS
//
// named.conf
//
// Provided by Red Hat bind package to configure the ISC BIND named(8) DNS
// server as a caching only nameserver (as a localhost DNS resolver only).
//
// See /usr/share/doc/bind*/sample/ for example named configuration files.
//
options {
        listen-on port 53 { 192.168.10.250; };
        //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; };
//
// named.conf
//
// Provided by Red Hat bind package to configure the ISC BIND named(8) DNS
// server as a caching only nameserver (as a localhost DNS resolver only).
//
// See /usr/share/doc/bind*/sample/ for example named configuration files.
//
options {
        listen-on port 53 { 192.168.10.250; };
        //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;
 
        forwarders { 218.2.135.1; 114.114.114.114; };
        dnssec-enable no;
        //dnssec-validation yes;
        //dnssec-lookaside auto;
        /* Path to ISC DLV key */
        //bindkeys-file "/etc/named.iscdlv.key";
        //managed-keys-directory "/var/named/dynamic";
};
logging {
        channel default_debug {
                file "data/named.run";
                severity dynamic;
        };
};
zone "." IN {
        type hint;
        file "named.ca";
};
include "/etc/named.rfc1912.zones";
include "/etc/named.laohulab.zones";
//include "/etc/named.root.key";
启动服务及设置开机启动
[root@sdns-10-250 ~]# chkconfig named on && chkconfig --list named
named          	0:off	1:off	2:on	3:on	4:on	5:on	6:off
 
[root@mdns-10-250 ~]# service named start
Starting named:                                            [  OK  ]
检查/var/log/message 主从同步信息
Jul  7 09:02:24 mdns-10-249 named[1422]: zone laohulab.com/IN: loaded serial 2016122622
Jul  7 09:02:24 mdns-10-249 named[1422]: zone laohulab.com/IN: sending notifies (serial 2016122622)
Jul  7 09:02:24 mdns-10-249 named[1422]: client 192.168.10.250#42323: transfer of 'laohulab.com/IN': AXFR-style IXFR started
Jul  7 09:02:24 mdns-10-249 named[1422]: client 192.168.10.250#42323: transfer of 'laohulab.com/IN': AXFR-style IXFR ended
注意事项

修改Master DNS记录，务必修改序列号，同步才能生效!

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