host myip.opendns.com resolver1.opendns.comIPv4
curl -4 ifconfig.meIPv6
curl -6 ifconfig.me wget -q -O- ifconfig.me ; wget -qO- ifconfig.me curl http://icanhazip.com/ curl api.ipify.org curl bot.whatismyipaddress.com curl ipinfo.io/ip curl ipecho.net/plain