Docker下搭建DNS服务器

最新推荐文章于 2025-07-11 09:01:20 发布

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本文介绍如何使用Docker部署DNSMasq服务，包括拉取镜像、配置文件挂载、编写YAML启动文件及运行容器等步骤，并提供内部域名请求转发示例。

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 1.拉镜像

 docker pull andyshinn/dnsmasq

 2.dns挂载配置文件

 mkdir -p /dockerdata/docker-dns

 cd /dockerdata/docker-dns

 vi resolv.dnsmasq

 nameserver 202.96.209.133

 nameserver 114.114.114.114

 nameserver 8.8.8.8

 vi dnsmasqhosts

 192.168.14.51 vhost1-vm1 vhost1-vm1.localdomain

 192.168.14.52 vhost1-vm2 vhost1-vm2.localdomain

...

 注意windows客户端一定要使用有后缀域名，否则不能使用

 vi dnsmasq.conf

 resolv-file=/etc/resolv.dnsmasq

 addn-hosts=/etc/dnsmasqhosts

 3.docker启动文件

 vi dns.yaml

   [plain] 
   view plaincopy
version: "2"  
services:  
  docker-dns:  
    container_name: docker-dns  
    image: andyshinn/dnsmasq  
    hostname: docker-dns  
    volumes:  
      - /dockerdata/docker-dns/resolv.dnsmasq:/etc/resolv.dnsmasq  
      - /dockerdata/docker-dns/dnsmasqhosts/:/etc/dnsmasqhosts  
      - /dockerdata/docker-dns/dnsmasq.conf/:/etc/dnsmasq.conf  
      - /etc/localtime:/etc/localtime:ro  
    ports:  
      - 53:53/tcp  
      - 53:53/udp  
    cap-add: NET_ADMIN  
    restart: on-failure:1  

 4.运行容器

 docker-compose -f ./dns.yaml up -d

 5.进入容器（不是bash,是/bin/sh）

 docker exec -it docker-dns /bin/sh

dnsmasq requires NET_ADMIN capabilities to run correctly. Start it with something like docker run -p 53:53/tcp -p 53:53/udp --cap-add=NET_ADMIN andyshinn/dnsmasq:2.75.

The configuration is all handled on the command line (no wrapper scripts here). The ENTRYPOINT is dnsmasq -k to keep it running in the foreground. If you wanted to send requests for an internal domain (such as Consul) you can forward the requests upstream using something like docker run -p 53:53/tcp -p 53:53/udp --cap-add=NET_ADMIN andyshinn/dnsmasq:2.75 -S /consul/10.17.0.2. This will send a request for redis.service.consul to 10.17.0.2