你懂得，供大家学习参考。

选取slave 的IP为DNS服务器，内容如下： 复制代码 代码如下: zone jbxue.net IN { type master; file /var/named/chroot/var/named/cme/jbxue.net.zone; allow-update { none; }; }; zone ym97.com/wenku IN { type master; file /var/named/chroot/var/named/cme/ym97.com/wenku.zone; allow-update { none; }; }; zone jbxue.org IN { type master; file /var/named/chroot/var/named/cme/jbxue.org.zone; allow-update { none; }; }; zone 228.32.10-in-addr.arpa IN { type master; file /var/named/chroot/var/named/cme/228.32.10-in-addr.local; allow-update { none; }; }; 保存， 复制代码 代码如下: dig @10.232.23.36 dig @10.232.23.36 dig @10.232.23.36 dig @10.232.23.36 mail.jbxue.org dig @10.232.23.36 mail.ym97.com/wenku dig @10.232.23.36 mail.jbxue.net 验证结果是否与master 一致， 需求： 解析域名 ym97.com/wenku 与 mail.jbxue.org mail.jbxue.net mail.ym97.com/wenku mail服务器的IP地址: 10.32.228.36 web服务器的IP地址: 10.32.228.12 首先，添加zone文件， 分别创建文件 复制代码 代码如下: /var/named/chroot/var/named/cme/jbxue.org.zone /var/named/chroot/var/named/cme/ym97.com/wenku.zone /var/named/chroot/var/named/cme/jbxue.net.zone /var/named/chroot/var/named/cme/228.32.10-in-addr.local 内容相似: 比如 jbxue.org.zone内容为: 复制代码 代码如下: $TTL 86400 @ IN SOA localhost root ( 43 ; serial (d. adams) 3H ; refresh 15M ; retry 1W ; expiry 1D ) ; minimum IN NS jbxue.org. IN MX 10 mail.jbxue.org. ;localhost IN A 127.0.0.1 www IN A 228.32.10.12 mail IN A 228.32.10.36 如法泡制添加 com 和 net 的zone文件， master 配置 cd /var/named/chroot/etc/ vim jbxue.zones 在其中添加jbxue的zone文件。

在master 和 slave 机器上面分别执行 yum install bind caching-nameserver -y 然后能看到两个软件的版本是: bind-9.3.6-20.P1.el5 caching-nameserver-9.3.6-20.P1.el5 安装成功后分别操作 master 和 slave 机器，修改这4个文件的owern为 root:named 然后。

slave 为 10.232.23.35 都是rhel5u4 bit64的机器，选用两台DNS服务器，修改ower 为 root:named 清空slaves 目录 rm -fr /var/named/slaves/IT之家 然后 在server 端查看日志: tail -f /var/log/messages | grep named 在slave 端: 然后重新启动服务: service named restart ls /var/named/slaves/ ym97.com/wenku jbxue.net jbxue.org 就看到同步下来的zone文件了 server 端也能看到日志: Aug 20 21:06:53 test023035.sqa.cm4 named[26858]: client 10.232.23.36#28603: view localhost_resolver: transfer of 'jbxue.org/IN': AXFR started Aug 20 21:06:53 test023035.sqa.cm4 named[26858]: client 10.232.23.36#28603: view localhost_resolver: transfer of 'jbxue.org/IN': AXFR ended Aug 20 21:06:53 test023035.sqa.cm4 named[26858]: client 10.232.23.36#30342: view localhost_resolver: transfer of 'jbxue.net/IN': AXFR started Aug 20 21:06:53 test023035.sqa.cm4 named[26858]: client 10.232.23.36#10029: view localhost_resolver: transfer of 'ym97.comcourse.htmlIN': AXFR started Aug 20 21:06:53 test023035.sqa.cm4 named[26858]: client 10.232.23.36#30342: view localhost_resolver: transfer of 'jbxue.net/IN': AXFR ended Aug 20 21:06:53 test023035.sqa.cm4 named[26858]: client 10.232.23.36#10029: view localhost_resolver: transfer of 'ym97.comcourse.htmlIN': AXFR ended 然后我们在slave 端进行同样测试，master 为 10.232.23.35。

bind配置dns服务的master与slave，可以测试下， .local文件内容为: 复制代码 代码如下: $TTL 86400 @ IN SOA localhost. root.localhost. ( 1997022700 ; Serial 28800 ; Refresh 14400 ; Retry 3600000 ; Expire 86400 ) ; Minimum IN NS jbxue.net. IN NS ym97.com/wenku. IN NS jbxue.org. ;1 IN PTR localhost. 12 IN PTR 12 IN PTR 12 IN PTR 36 IN PTR mail.jbxue.net. 36 IN PTR mail.ym97.com/wenku. 36 IN PTR mail.jbxue.org. 同样， service named start 然后 dig @10.232.23.35 dig @10.232.23.35 dig @10.232.23.35 dig @10.232.23.35 mail.jbxue.org dig @10.232.23.35 mail.ym97.com/wenku dig @10.232.23.35 mail.jbxue.net SLAVE端配置 首先，chown -R root:named jbxue.zones 然后，简单的master - slave 就搭建完成了， 你可以进行master端的更新进行进一步测试，注意要修改的NS记录值(com or net)，修改named.conf文件 ln -sf /etc/named.caching-nameserver.conf /var/named/chroot/etc/named.conf 然后修改 /var/named/chroot/etc/named.conf 的内容: 复制代码 代码如下: options { listen-on port 53 { any; }; 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; // Those options should be used carefully because they disable port // randomization // query-source port 53; // query-source-v6 port 53; allow-query { any; }; //allow-query-cache { localhost; }; notify yes; allow-transfer {any;}; //transfer-source 10.32.228.36; }; logging { channel default_debug { file data/named.run; severity dynamic; }; }; view localhost_resolver { match-clients { any; }; match-destinations { any; }; //transfer-source 10.32.228.36; recursion yes; include /etc/named.rfc1912.zones; include /var/named/chroot/etc/jbxue.zones; }; 这样master 就OK了，同样把 /etc/named.caching-nameserver.conf 连接成/var/named/chroot/etc/named.conf 然后修改/var/named/chroot/etc/named.conf 文件为: options { listen-on port 53 { any; }; 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; // Those options should be used carefully because they disable port // randomization // query-source port 53; // query-source-v6 port 53; allow-query { any; }; //allow-query-cache { localhost; }; }; logging { channel default_debug { file data/named.run; severity dynamic; }; }; view localhost_resolver { match-clients { any; }; match-destinations { any; }; recursion yes; include /etc/named.rfc1912.zones; include /var/named/chroot/etc/jbxue.zones; }; 能够看到我们添加的zone文件 include /var/named/chroot/etc/jbxue.zones; 创建该文件: vim /var/named/chroot/etc/jbxue.zones 内容为: zone jbxue.net { type slave; file slaves/jbxue.net;masters { 10.232.23.35; };}; zone jbxue.org { type slave; file slaves/jbxue.org;masters { 10.232.23.35; };}; zone ym97.com/wenku { type slave; file slaves/ym97.com/wenku;masters { 10.232.23.35; };}; 保存， 至此， ，。