DNS主从服务器搭建
1、安装bind软件包
[root@localhost cdrom]# yum install -y bind*
...
完毕！
- 查看需要配置的dns服务的文件是否全部存在
[root@localhost etc]# ll | grep named
drwxr-x---. 2 root named 6 2月 25 2019 named
-rw-r--r--. 1 root root 621 2月 25 2019 named-chroot.files
-rw-r-----. 1 root named 1705 2月 25 2019 named.conf --主配置文件
-rw-r-----. 1 root named 931 6月 21 2007 named.rfc1912.zones --区域配置文件
-rw-r--r--. 1 root named 1886 4月 13 2017 named.root.key
2、#主DNS配置
1)全局配置文件
[root@localhost named]# vi /etc/named.conf
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";
recursing-file "/var/named/data/named.recursing";
secroots-file "/var/named/data/named.secroots";
#allow-query { any; };
allow-transfer {192.168.154.140;};
2)主配置文件
[root@localhost named]# vi /etc/named.rfc1912.zones
zone "linux.com" {
type master;
file "linux.com.zone";
also-notify { 192.168.154.140; };
allow-transfer {192.168.154.140; };
};
3)区域配置文件
[root@localhost named]# vi linux.come.zone
$TTL 1D
@ IN SOA dns.linux.com. root.linux.com. (
2020111601 ; serial
1D ; refresh
1H ; retry
1W ; expire
3H ) ; minimum
IN NS dns.linux.com. 主DNS
IN NS www.linux.com. 从DNS
aa IN A 192.168.154.141
dns IN A 192.168.154.111 主DNS
www IN A 192.168.154.140 从DNS
ftp IN A 192.168.154.115
写dns
[root@localhost]# vi /etc/resolv.conf
#Generated by NetworkManager
search localdomain
#nameserver 192.168.154.2
nameserver 192.168.154.111
重启服务
[root@localhost ~]# systemctl restart named
从DNS配置
写dns
[root@localhost slaves]# vi /etc/resolv.conf
#Generated by NetworkManager
search localdomain
#nameserver 192.168.154.2
nameserver 192.168.154.111
配置全局配置文件
[root@localhost slaves]# vi /etc/named.conf
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";
recursing-file "/var/named/data/named.recursing";
secroots-file "/var/named/data/named.secroots";
#allow-query { any; };
allow-transfer {192.168.154.111;};
配置主配置文件
[root@localhost slaves]# vi /etc/named.rfc1912.zones
zone "linux.com" {
type slave;
file "slaves/linux.com.zone";
masters {192.168.154.111;};
};
重启服务让dns自动同步
[root@localhost slaves]# ls
[root@localhost slaves]# rndc reload
server reload successful
[root@localhost slaves]# ls
linux.com.zone