代理地址檢測

2.探測公網IP

- 直接訪問
curl api.ipify.org
curl bot.whatismyipaddress.com
curl icanhazip.com
curl ident.me
curl checkip.dyndns.com
curl httpbin.org/ip
dig +short myip.opendns.com @resolver1.opendns.com
curl wtfismyip.com/json

3.IP歸屬
http://www.ipdeny.com/ipblocks/data/countries/cn.zone
curl 'http://ftp.apnic.net/apnic/stats/apnic/delegated-apnic-latest' | awk -F\| '/\|CN\|ipv4\|/{ printf("%s/%d\n", $4, 32-log($5)/log(2)) }'
https://ispip.clang.cn/
https://github.com/lionsoul2014/ip2region

4.DNS 污染
https://github.com/shawn1m/overture
https://github.com/shadowsocks/ChinaDNS
https://github.com/felixonmars/dnsmasq-china-list
中科大 DNS
獲取Local DNS 地址信息
https://github.com/cokebar/gfwlist2dnsmasq

6.無侵入客戶端
- proxychains-ng
- https://github.com/hmgle/graftcp
- Transparent proxy per application on Linux