How to know the Server's Public IP Address on Wireless Interface?

Question

I want to setup a web server by using my wireless interface. Just wanted to know for testing purpose as I have setup LAMP. I'm connected to Internet through Wifi and at the same time I want to serve a website. I am following this website to setup LAMP: "https://www.digitalocean.com/community/tutorials/how-to-install-linux-apache-mysql-php-lamp-stack-on-ubuntu-16-04"

Where they told me to know "Server's Public IP Address" After entering the command it shows:- "Device "eth0" does not exist" as I'm using my Wireless Interface. Someone clear me this concept.

ifconfig show the connected LAN and WLAN IP addresses. But these may be private IP address because you said it is a Wireless Interface. Not the public IP address I think. That mean you can access that IP from your internal network but not from external network by other users. — San Lin Naing, Jan 24 '17 at 12:36
@Vivek Mahajan Do you want to allow access to your server from WAN ? — fugitive, Jan 24 '17 at 12:58
Your public IP Address is probably not your IP Adress on your Wireless Interface. From your question it's unclear what you want. ifconfig or hostname -I will help you with WLAN Interface. — pLumo, Jan 24 '17 at 13:07

score 2 · Answer 1 · answered Jan 24 '17 at 12:55

2

To find your public IP Address, either search google.com: https://www.google.dk/search?q=find+public+ip+address or use http://www.whatismypublicip.com/ or similar service.

answered Jan 24 '17 at 12:55

Soren A

6,799

score 1 · Answer 2 · answered Sep 10 '21 at 13:02

1

As a 2021 addition to the answer given by Soren A, you do indeed need to use a service hosted on the (external) internet to get your public IP.

I like the site ifconfig.me since one can use it with command line tools. I usually use curl ifconfig.me.

answered Sep 10 '21 at 13:02

goldfishalpha

111

How to know the Server's Public IP Address on Wireless Interface?

2 Answers2