树莓派配合overture完成本地无污染DNS的搭建

项目地址：https://github.com/shawn1m/overture

相比ChinaDNS而言，overture对于国内外 DNS 的判断逻辑更完善，关键还支持 ECS。
国内首先支持ECS的是腾讯。

我在树莓派上搭建，减少了服务器开支费用，并非加上dnsmasq。

# 开始配置，参照我的配置修改。
{
  "BindAddress": ":53",  //运行端口
  "DebugHTTPAddress": "127.0.0.1:5555",
  "PrimaryDNS": [
    {
      "Name": "DNSPod", //腾讯DNS支持ENDS
      "Address": "119.29.29.29:53",
      "Protocol": "udp", //国内UDP没问题，你也可以换TCP
      "SOCKS5Address": "",
      "Timeout": 6,
      "EDNSClientSubnet": {
        "Policy": "auto",
        "ExternalIP": "",
        "NoCookie": true
      }
    }
  ],
  "AlternativeDNS": [
    {
      "Name": "OpenDNS",
      "Address": "208.67.222.222:443",
      "Protocol": "tcp", //TCP防止污染
      "SOCKS5Address": "",
      "Timeout": 6,
      "EDNSClientSubnet": {
        "Policy": "disable",
        "ExternalIP": "",
        "NoCookie": true
      }
    }
  ],
  "OnlyPrimaryDNS": false,
  "IPv6UseAlternativeDNS": false,
  "WhenPrimaryDNSAnswerNoneUse": "PrimaryDNS",
  "IPNetworkFile": {
    "Primary": "./ip_network_primary_sample", //建议修改，看后文
    "Alternative": "./ip_network_alternative_sample"
  },
  "DomainFile": {
    "Primary": "./domain_primary_sample",
    "Alternative": "./domain_alternative_sample" //建议修改，看后文
  },
  "HostsFile": "./hosts_sample",
  "MinimumTTL": 0,  //解析记录最小缓存时间（秒），0则不使用
  "DomainTTLFile" : "./domain_ttl_sample",
  "CacheSize" : 0,   //缓存条数，0则不使用
  "RejectQType": [255]
}

# IPNetworkFile - Primary 建议使用 [chnrouter](https://raw.githubusercontent.com/17mon/china_ip_list/master/china_ip_list.txt "chnrouter")

# DomainFile - DomainFile 
curl https://raw.githubusercontent.com/gfwlist/gfwlist/master/gfwlist.txt | base64 -d | sort -u | sed '/^$\|@@/d'| sed 's#!.\+##; s#|##g; s#@##g; s#http:\/\/##; s#https:\/\/##;' | sed '/\*/d; /apple\.com/d; /sina\.cn/d; /sina\.com\.cn/d; /baidu\.com/d; /qq\.com/d' | sed '/^[0-9]\+\.[0-9]\+\.[0-9]\+\.[0-9]\+$/d' | grep '^[0-9a-zA-Z\.-]\+$' | grep '\.' | sed 's#^\.\+##' | sort -u > /tmp/temp_gfwlist.txt
curl https://raw.githubusercontent.com/hq450/fancyss/master/rules/gfwlist.conf | sed 's/ipset=\/\.//g; s/\/gfwlist//g; /^server/d' > /tmp/temp_koolshare.txt
cat /tmp/temp_gfwlist.txt /tmp/temp_koolshare.txt | sort -u > domain_alternative_sample

#部分文件名称需要自己修改，包括路径。该部分代码参考 https://moe.best/tutorial/overture.html

# 运行
./overture  默认使用 ./config.json
./overture -c /path/to/config.json 自定义配置路径

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