CentOS 7.0系统
[root@centos7 ~]# yum install bind-chroot bind -y
[root@centos7 ~]# cp -R /usr/share/doc/bind-*/sample/var/named/* /var/named/chroot/var/named/
[root@centos7 ~]# touch /var/named/chroot/var/named/data/cache_dump.db [root@centos7 ~]# touch /var/named/chroot/var/named/data/named_stats.txt [root@centos7 ~]# touch /var/named/chroot/var/named/data/named_mem_stats.txt [root@centos7 ~]# touch /var/named/chroot/var/named/data/named.run [root@centos7 ~]# mkdir /var/named/chroot/var/named/dynamic [root@centos7 ~]# touch /var/named/chroot/var/named/dynamic/managed-keys.bind
[root@centos7 ~]# chmod -R 777 /var/named/chroot/var/named/data [root@centos7 ~]# chmod -R 777 /var/named/chroot/var/named/dynamic
[root@centos7 ~]# cp -p /etc/named.conf /var/named/chroot/etc/named.conf
在 named.conf 文件尾添加 example.local 域信息， 创建转发域（Forward Zone）与反向域（Reverse Zone）（LCTT 译注：这里example.local 并非一个真实有效的互联网域名，而是通常用于本地测试的一个域名；如果你需要做权威 DNS 解析，你可以将你拥有的域名如这里所示配置解析。）：[root@centos7 ~]# vi /var/named/chroot/etc/named.conf
.. .. zone 'example.local' { type master; file 'example.local.zone'; }; zone '0.168.192.in-addr.arpa' IN { type master; file '192.168.0.zone'; }; .. ..named.conf 完全配置如下：// // named.conf // // 由Red Hat提供，转自于《Linux就该这么学》将 ISC BIND named(8) DNS服务器 // 配置为暂存域名服务器 (用来做本地DNS解析). // // See /usr/share/doc/bind*/sample/ for example named configuration files. // 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'; allow-query { any; }; /* - 如果你要建立一个 授权域名服务器 服务器, 那么不要开启 recursion（递归） 功能。 - 如果你要建立一个 递归 DNS 服务器, 那么需要开启recursion 功能。 - 如果你的递归DNS服务器有公网IP地址, 你必须开启访问控制功能， 只有那些合法用户才可以发询问. 如果不这么做的话，那么你的服 服务就会受到DNS 放大攻击。实现BCP38将有效抵御这类攻击。 */ recursion yes; dnssec-enable yes; dnssec-validation yes; dnssec-lookaside auto; /* Path to ISC DLV key */ bindkeys-file '/etc/named.iscdlv.key'; managed-keys-directory '/var/named/dynamic'; pid-file '/run/named/named.pid'; session-keyfile '/run/named/session.key'; }; logging { channel default_debug { file 'data/named.run'; severity dynamic; }; }; zone '.' IN { type hint; file 'named.ca'; }; zone 'example.local' { type master; file 'example.local.zone'; }; zone '0.168.192.in-addr.arpa' IN { type master; file '192.168.0.zone'; }; include '/etc/named.rfc1912.zones'; include '/etc/named.root.key';
a)创建转发域：[root@centos7 ~]# vi /var/named/chroot/var/named/example.local.zone添加如下内容并保存：; ; Addresses and other host information. ; $TTL 86400 @ IN SOA example.local. hostmaster.example.local. ( 2 ; Serial 43200 ; Refresh 3600 ; Retry 3600000 ; Expire 2592000 ) ; Minimum ; Define the nameservers and the mail servers IN NS ns1.example.local. IN NS ns2.example.local. IN A 192.168.0.70 IN MX 10 mx.example.local. centos7 IN A 192.168.0.70 mx IN A 192.168.0.50 ns1 IN A 192.168.0.70 ns2 IN A 192.168.0.80b)创建反向域[root@centos7 ~]# vi /var/named/chroot/var/named/192.168.0.zone-; ; Addresses and other host information. ; $TTL 86400 @ IN SOA example.local. hostmaster.example.local. ( 2 ; Serial 43200 ; Refresh 3600 ; Retry 3600000 ; Expire 2592000 ) ; Minimum 0.168.192.in-addr.arpa. IN NS centos7.example.local. 70.0.168.192.in-addr.arpa. IN PTR mx.example.local. 70.0.168.192.in-addr.arpa. IN PTR ns1.example.local. 80.0.168.192.in-addr.arpa. IN PTR ns2.example.local.。
[root@centos7 ~]# /usr/libexec/setup-named-chroot.sh /var/named/chroot on [root@centos7 ~]# systemctl stop named [root@centos7 ~]# systemctl disable named [root@centos7 ~]# systemctl start named-chroot [root@centos7 ~]# systemctl enable named-chroot ln -s '/usr/lib/systemd/system/named-chroot.service' '/etc/systemd/system/multi-user.target.wants/named-chroot.service'