The method of obtaining public network IP address under Linux

The Ifconfig command is sometimes unavailable for permissions or other reasons when the Linux environment penetrates, so you can view the extranet IP in the following ways

1, how to view the public network under the Linux server IP address, you can use the following methods:

Curl Http://members.3322.org/dyndns/getip

2, in the terminal input Curl Ipinfo.io or curl ifconfig.me through the IP Address detection Web site provided by the API to get the local IP, or in JSON format return all the results.