1、安装
apt-get install dnsmasq
2、配置
vim /etc/dnsmasq.conf
listen-address=10.100.33.50 #监听本机ip地址
resolv-file= /etc/dnsmasq.d/resolv.dnsmasq.conf #用于非本地主机解析记录解析的dns列表
strict-order #实际解析按照resolv-file中从上到下dns server的顺序进行解析
addn-hosts=/etc/hosts #本地主机解析记录
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vim /etc/dnsmasq.d/resolv.dnsmasq.conf
server = 114.114.114.114
server = 233.5.5.5
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vim /etc/hosts
10.10.33.22 office.zabbix.you.cn
10.10.33.21 office.grafana.you.cn
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vim /etc/resolv.conf #本机的dns配置
nameserver 114.114.114.114
3、测试
本地通过内网dns 10.100.33.50 测试域名
dig office.zabbix.you.cn @10.100.33.50 +short
10.10.33.22
dig office.grafana.you.cn @10.100.33.50 +short
10.10.33.21
测试dns缓存
第一次解析sina域名,由于之前并没有访问过这个域名,查询时间为62 msec
dig [www.sina.cn](http://www.sina.cn) A @10.100.33.50 | grep Query
;; Query time: 62 msec
第二次解析sina域名,查询时间已缩短为3 msec
dig [www.sina.cn](http://www.sina.cn) A @10.100.33.50 | grep Query
;; Query time: 3 msec