What is my public ip address linux

4 Ways to Find Server Public IP Address in Linux Terminal

In computer networking, an IP (Internet Protocol) address is a numerical identifier assigned permanently or temporarily to every device connected to a network that uses the Internet Protocol for communication. Its two major functions are to identify a network or host on a network and also serve for location addressing.

There are currently two versions of IP addresses: IPv4 and IPv6, which can either be private (viewable within an internal network) or public (can be seen by other machines on the Internet).

Additionally, a host can be assigned a static or dynamic IP address depending on the network configurations. In this article, we will show you 4 ways to find your Linux machine or server public IP address from the terminal in Linux.

1. Using dig Utility

dig (domain information groper) is a simple command line utility for probing DNS name servers. To find your public IP addresses, use the opendns.com resolver as in the command below:

$ dig +short myip.opendns.com @resolver1.opendns.com 120.88.41.175 

2. Using host Utility

host command is an easy-to-use command line utility for carrying out DNS lookups. The command below will help to display your systems public IP address.

$ host myip.opendns.com resolver1.opendns.com | grep "myip.opendns.com has" | awk '' 120.88.41.175 

Important: The next two methods employ third party websites to display your IP address on the command line as described below.

3. Using wget Command Line Downloader

wget is a powerful command line downloader that supports various protocols like HTTP, HTTPS, FTP and many more. You can use it with third party websites to view your public IP address as follows:

$ wget -qO- http://ipecho.net/plain | xargs echo $ wget -qO - icanhazip.com 120.88.41.175 

4. Using cURL Command Line Downloader

curl is a popular command line tool for uploading or downloading files from a server using any of the supported protocols (HTTP, HTTPS, FILE, FTP, FTPS and others). The following commands displays your public IP address.

$ curl ifconfig.co $ curl ifconfig.me $ curl icanhazip.com 120.88.41.175 

That’s It! You may find these following articles useful to read.

That’s all! If you have any questions or other methods to share in relation to this topic, use the feedback form below to write back to us.

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How to Find or Check Your IP Address in Linux

An IP address is a codename assigned to a computer on a network. It works as a postal address, ensuring that network traffic is sent to the correct computer.

In this tutorial you will learn how to find your IP address using a Linux operating system.

Find Your IP Address From the Command Line

There are a few different commands you can use to check your IP address. To run these commands, start by opening a terminal window/command line.

Using the hostname Command

One way to check your IP address from the command-line is by using the following command:

The system will display your internal IP address.

Using the ip addr Command

Check your ip address with the ip addr command:

The system will scan your hardware, and display the status for each network adapter you have. Look for an entry that says link/ether. Below it, you should see one of the following:

inet6 fe80::a00:27ff:fe76:1e71/64

The entries will include one for a wired (Ethernet) adapter and a wireless (Wi-Fi) adapter. You may also have an entry for a virtual adapter. Generally, only one entry will have an IP address listed – that is the one you will want.

Note: The number after the slash – /24 and /64 – specifies the size of the network, and it helps with scanning and mapping network size.

Using the ifconfig Command

The third method to find your IP address involves using the ifconfig command. In the command line, enter the following:

The system will display all network connections – including connected, disconnected, and virtual. Look for the one labeled UP, BROADCAST, RUNNING, MULTICAST to find your IP address. This lists both IPv4 and IPv6 addresses.

Note: When you check your IP address, you may notice the term loopback. This refers to an IP address that returns traffic to the same computer. Usually, the loopback address is 127.0.0.1 . If you see that address listed, either you are looking at the wrong line, or you are not connected to the network.

Read phoenixNAP’s ultimate Linux IP command tutorial with 31 examples to learn more!

Finding Your IP Address in Linux With a GUI

If you are using a point-and-click interface to run your Linux system, you can check your IP address by following these steps:

1. Go to the Application menu and type Settings into the search bar.

2. Click on the Settings icon that appears among the results, as in the image below:

3. Next, find the Network tab in the Settings Menu and click on the Advanced Wired Settings icon.

4. This opens a new pop-up window with details on wired settings. Here you can find both your IPv4 address and your IPv6 address.

How to Find Public IP Address

To find your public IP address, reach out to an external website.

If you are using a browser, navigate to:

If you are using a command-line or terminal, use a retrieval command like curl or wget to display the external IP address:

wget -O - -q https://checkip.amazonaws.com

Note: Did you know that when you use curl to connect to an insecure website, the output responds with an error? To resolve it, visit our guide on making curl ignore certificates.

What is a Public/Private IP Address?

Each computer in a network is required to have its own IP address. If two systems have the same IP address, it will generate errors on the network. Most modern networks will detect the problem and prompt you to fix it. However, older networks might get confused, trying to route traffic to both computers.

Most systems will have two different IP addresses:

• Private IP address: This is the address used on the network. Also, it is the one you will want to use for configuring routing tools. On smaller networks, the internal IP address typically starts with 192.168.x.x. It is dynamically assigned to your computer whenever you connect.
• Public IP address: This is the IP address that registers on a website when you visit it. When you connect to a small network, your computer connects to a router using an internal IP address. That router, in turn, connects to a bigger network (like an Internet Service Provider), which has its own IP address system.

Note: Learn everything you need to know about public and private IP addresses in our article Public vs. Private IP Address.

Now you know how to find a private and public IP address in Linux using multiple methods.

Each option strikes a balance between speed and complexity. Now you have the flexibility to choose, if you only need your internal IP address, you can use the hostname method. If you need more detailed information, view our article on 31 Linux IP Commands with examples.

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How to Check the IP Address in Linux

This article was co-authored by wikiHow staff writer, Jack Lloyd. Jack Lloyd is a Technology Writer and Editor for wikiHow. He has over two years of experience writing and editing technology-related articles. He is technology enthusiast and an English teacher.

The wikiHow Tech Team also followed the article’s instructions and verified that they work.

This article has been viewed 24,103,745 times.

This wikiHow teaches you how to view your computer’s private and public IP addresses on a Linux computer.

Finding Your Public IP Address

Understand when to use this method. The public IP address is what websites and services see when you access them from your computer. If you want to try to connect to your computer via a remote connection that isn’t on the same network, you’ll need the public IP address.

Open Terminal. Click or double-click the Terminal app icon, or press Ctrl + Alt + T to bring up the Terminal window.

Enter the public IP command. Type curl ifconfig.me into the Terminal window. This command retrieves your public IP address from a website. [1] X Research source

Wait for your public IP address to appear. The IP address that appears below the command you entered is the public IP address for your network.

Finding Your Private IP Address

Understand when to use this method. If you’re trying to find the IP address of your computer within your Wi-Fi network (e.g., if you want to forward your router for your computer), you’ll need to know the IP address.

Open Terminal. Click or double-click the Terminal app icon, or press Ctrl + Alt + T to bring up the Terminal window.

Press ↵ Enter . Doing so runs your command and displays the IP address information of any network items, including your computer.

Find your computer’s heading. You’ll usually find your computer’s information under the «wlo1» (or «wlan0») heading, just right of the «inet» tag. [2] X Research source

• You can usually see the IPv6 address next to the «inet6» tag. The IPv6 address is less commonly used than the IPv4 address.

Try the «hostname» command. On some Linux versions, such as Ubuntu, you can bring up your computer’s IP address by typing in hostname -I (that’s a capital «i», not a lower-case «L») and pressing ↵ Enter .

Community Q&A

It is a label that consists of four numbers separated by dots. Every computer with an internet connection is assigned an IP address. It is used so that computers can connect to each other. If you write the name of a web page into your browser’s address bar, it actually looks up what IP that name refers to and then connects with that IP.

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If the device the IP of which you’re trying to find has a domain name, you can use the «nslookup» function. So for example, «nslookup google.com» would give you the IP address of one of Google’s servers. If it doesn’t, and the device connected to your device at some time, one of the many logs (located at /var/log) can contain its IP address. Other than that, there is no way to find someone else’s IP address from your device, but you can use theirs.

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What would I enter at the command prompt (terminal) on a Linux system to display a list of files and sub directories that exist within the present working directory?

You can type «ls» (without quotes) to list the files and directories in the present working directory and «ls -a» to list everything, including all hidden files.

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