Centos7 DNS服务器搭建与配置

Centos7 DNS服务器搭建与配置

环境

设置服务器静态ip地址

vi /etc/sysconfig/network-scripts/ifcfg-ens32

TYPE=Ethernet
BOOTPROTO=static
DEFROUTE=yes
PEERDNS=yes
PEERROUTES=yes
IPV4_FAILURE_FATAL=no
IPV6INIT=yes
IPV6_AUTOCONF=yes
IPV6_DEFROUTE=yes
IPV6_PEERDNS=yes
IPV6_PEERROUTES=yes
IPV6_FAILURE_FATAL=no
IPV6_ADDR_GEN_MODE=stable-privacy
NAME=ens32
UUID=70058ad3-1249-4950-a5ad-a491a6d0e012
DEVICE=ens32
ONBOOT=yes
IPADDR=192.168.1.8
GATEWAY=192.168.1.1
NETMASK=255.255.255.0
DNS1=192.168.1.8

安装

安装bind：yum -y install bind bind-utils

启动服务： systemctl start named

设置开机启动： systemctl enable named

配置

配置name.conf文件

vi /etc/named.conf

options {
listen-on port 53 { any; };
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;
dnssec-enable no;
dnssec-validation no;
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";
};

## 新增域名demo.com
zone "demo.com" IN {
type master;
file "/var/named/demo.com";
};

include "/etc/named.rfc1912.zones";
include "/etc/named.root.key";

新增demo.com并配置文件

cd /var/named
cp named.empty demo.com
vi demo.com

$TTL 3H
@       IN SOA  @ demo.com. (
0       ; serial
1D      ; refresh
1H      ; retry
1W      ; expire
3H )    ; minimum
NS      @
A       127.0.0.1

jenkins IN      A       192.168.1.14

重启DNS: systemctl restart named

重启网络： systemctl restart network

测试

nslookup jenkins.demo.com

Server:     192.168.1.8
Address:    192.168.1.8#53

Name:   jenkins.demo.com
Address: 192.168.1.14