DNS配置

安装

yum install -y bind
# 查看bind文件
rpm -qc bind
/etc/logrotate.d/named
/etc/named.conf
/etc/named.rfc1912.zones
/etc/named.root.key
/etc/rndc.conf
/etc/rndc.key
/etc/sysconfig/named
/var/named/named.ca
/var/named/named.empty
/var/named/named.localhost
/var/named/named.loopback

配置

1. 主文件配置

vim /etc/named.conf
# 需要修改的内容
options {listen-on-v6 poet 53 { 10.0.17.100; };  # 监听53端口，IP地址使用提供服务的本地IP，也可用any代表所有
#   listen-on-v6 port 53 { : :1; };                 directory       "/var/named";     # 区域数据文件的默认存放位置dump-file      "/var/ named/data/cache_ dump . db";  # 域名缓存数据库文件的位置statistics-file "/var/named/data/named stats.txt";     # 状态统计文件的位置memstatistics-file "/var/named/data/named_ mem_ stats. txt";  # 内存统计文件的位置allow-query{ any; };     # 允许使用本DNS解析服务的网段，也可用any代表所有
}

2. 配置区域配置文件

vim /etc/named.rfc1912.zones                              zone "test. com" IN {         #正向解析"test.com"区域
type master;                  #类型为主区域file "test.com.zone";        #指定区域数据文件为test. com. zone
allow-update { none; };       #关闭更新

3.配置区域数据文件（/var/named/test.com.zone，需要新建文件，可以通过复制named.localhost文件为模板）

cd /var/named/
cp -p named.localhost test.com.zone        //保留源文件的权限和属主的属性复制
chown named test.com.zone
vim /var/named/shim.test.zone$TTL 1D #设置缓存解析有效时间
@       IN SOA  test.com. root. (0       ; serial1D      ; refresh1H      ; retry1W      ; expire3H )    ; minimumIN NS      test.com # 记录当前区域的DNS服务器的名称IN A       10.0.17.100 # 记录主机的IP地址IN AAAA    ::1IN MX 10 mail.test.com # MX为邮件记录，数值代表优先级，越大越优www IN A 10.0.17.100 # www.test.com映射的IP地址ftp IN A 10.0.17.100mail IN A 10.0.17.100* IN A 10.0.17.100  # 泛域名解析，*代表任意主机名

测试

systemctl stop firewalld
systemctl disable firewalld
setenforce 0
systemctl start named  # 启动named服务
systemctl status named # 查看服务状态named-checkconf -z /etc/named.conf   # 检查配置文件echo "nameserver 10.0.17.100" > /etc/resolv.conf   # 添加DNS服务器地址
cat /etc/resolv.conf
nslookup www.test.com                         # 解析mail.shim.comServer:         10.0.17.100
Address:        10.0.17.100#53Name:   www.test.com
Address: 10.0.17.100