辅助dns以及dns远程更新

Myth丶恋晨 2022-01-31 07:17 349阅读 0赞

## 一.辅助dns ##

辅助dns是针对外网。  
集群：主的通知辅助的 ，目的是数据同步，让多台主机为一台主机工作。

主dns：

vim /etc/named.rfc1912.zones.inter
    systemctl restart named

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80NDg4OTYxNg_size_16_color_FFFFFF_t_70]

辅助dns：

yum install bind -y
    systemctl restart named
    systemctl stop firewalld 
    vim /etc/named.conf
    vim /etc/named.rfc1912.zones

首先，我们在另一台虚拟机中搭建DNS服务，并修改配置文件/etc/resolv.conf中的nameserver为他自己的ip 172.25.254.16。  
在子配置文件中修改以下：  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80NDg4OTYxNg_size_16_color_FFFFFF_t_70 1]  
然后，我们先注释掉双向解析在主配置文件中添加的内容，恢复原来的内容，在子配置文件中修改以下内容：  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80NDg4OTYxNg_size_16_color_FFFFFF_t_70 2]  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80NDg4OTYxNg_size_16_color_FFFFFF_t_70 3]

测试：

主dns中在域名文件westos.com.zone文件中修改域名对应的ip，并修改serial的值，重启服务：  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80NDg4OTYxNg_size_16_color_FFFFFF_t_70 4]![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80NDg4OTYxNg_size_16_color_FFFFFF_t_70 5]

## 二.dns的远程更新 ##

基于ip的：

cp -p even.com.zone /opt/
    vim /etc/named.rfc1912.zone.inter
    chmod 770 /var/name
    systemctl restart named

![在这里插入图片描述][20190515235642494.png]

![在这里插入图片描述][20190515235653362.png]

测试：  
![在这里插入图片描述][20190515235532686.png]  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80NDg4OTYxNg_size_16_color_FFFFFF_t_70 6]

**基于key (加密方式) （加密长度） （名称类型）**

dnssec-keygen  -a HMAC-MD5 -b 128 -n HOST westos
    cp /etc/rndc.key  /etc/westos.key -p 
    vim /etc/named.conf
    42 include "/etc/westos.key";
    vim /etc/named.rfc1912.zones

![在这里插入图片描述][20190516000301636.png]

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80NDg4OTYxNg_size_16_color_FFFFFF_t_70 7]  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80NDg4OTYxNg_size_16_color_FFFFFF_t_70 8]测试：  
![在这里插入图片描述][20190516000119570.png]![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80NDg4OTYxNg_size_16_color_FFFFFF_t_70 9]

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[20190515235642494.png]: /images/20220131/54eeba2fa4a8498c9df675390d8f6ac9.png
[20190515235653362.png]: /images/20220131/7649e01b140f4be3ac4378bd85171aea.png
[20190515235532686.png]: /images/20220131/851a3264ae654388afeeac2f0328ed05.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80NDg4OTYxNg_size_16_color_FFFFFF_t_70 6]: /images/20220131/d487a35e46514bc6b6bd081d8e563461.png
[20190516000301636.png]: /images/20220131/02dc36ef52804a65a3c7c1b4898f79d9.png
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[20190516000119570.png]: https://img-blog.csdnimg.cn/20190516000119570.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80NDg4OTYxNg_size_16_color_FFFFFF_t_70 9]: /images/20220131/6b8e71c4607e42799e792b846980a136.png