get external IP address

curl -ksm 5 https://ip.appspot.com/
curl -ksm 5 https://icanhazip.com/
curl -ksm 5 https://www.telize.com/ip
curl -ksm 5 https://myexternalip.com/raw
curl -ksm 5 https://ipinfo.io/ip

curl -sm 5 http://api.ipify.org
curl -sm 5 http://tuq.in/tools/myip.txt
curl -sm 5 http://checkip.amazonaws.com/
curl -sm 5 http://corz.org/ip
curl -sm 5 http://curlmyip.com/
curl -sm 5 http://ifconfig.me/ip
curl -sm 5 http://www.trackip.net/ip