centos部署DNS
时间: 2024-05-27 22:07:30 浏览: 138
在 CentOS 上部署 DNS 可以通过安装 BIND(Berkeley Internet Name Domain)软件实现。下面是部署 DNS 的基本步骤:
1. 安装 BIND 软件:可以使用 yum 命令安装 BIND,命令如下:
```
sudo yum install bind bind-utils
```
2. 配置 DNS:修改 named.conf 文件,该文件位于 /etc/named.conf,修改后的文件可以参考下面的示例:
```
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; };
recursion yes;
dnssec-enable yes;
dnssec-validation yes;
/* Path to ISC DLV key */
bindkeys-file "/etc/named.root.key";
managed-keys-directory "/var/named/dynamic";
};
logging {
channel default_debug {
file "data/named.run";
severity dynamic;
};
};
zone "." IN {
type hint;
file "named.ca";
};
include "/etc/named.rfc1912.zones";
include "/etc/named.root.key";
```
3. 配置区域:在 named.conf 文件中,可以配置不同的区域(zone)。例如,要添加一个名为 example.com 的区域,可以在 named.conf 文件中添加以下配置:
```
zone "example.com" IN {
type master;
file "/var/named/example.com.zone";
allow-update { none; };
};
```
4. 创建区域文件:在指定的目录中创建一个名为 example.com.zone 的文件,并添加以下内容:
```
$TTL 86400
@ IN SOA ns1.example.com. root.example.com. (
2019030701 ; Serial
3600 ; Refresh
1800 ; Retry
604800 ; Expire
86400 ; Minimum TTL
)
@ IN NS ns1.example.com.
@ IN A 192.168.0.1
www IN A 192.168.0.2
```
5. 启动 BIND:执行以下命令启动 BIND:
```
sudo systemctl start named
```
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