This simple command will print out the Internet facing IP address of a Linux machine in no time.
curl ifconfig.me/ip |
This will return the useragent that is used to access this URL.
ubuntu ~ $ curl ifconfig.me/ua curl/7.35.0 |
Use this string to get all information about the host that is accessing the url.
curl ifconfig.me/all |
Very useful in a script if the user needs information about their remote Internet facing IP in a hurry.