Which ip address linux

How to Check Your IP Address in Ubuntu [Beginner’s Tip]

Wonder what’s your IP address? Here are several ways to check IP address in Ubuntu and other Linux distributions.

Wonder what’s your IP address? Here are several ways to check IP addresses in Ubuntu and other Linux distributions. Want to know your Linux system’s IP address? You can use the ip command with the option a like this:

The output is extensive and it shows all the internet interfaces available, including loopback. Identifying the IP address could seem challenging if you are new to it.

1: lo: mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000 link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00 inet 127.0.0.1/8 scope host lo valid_lft forever preferred_lft forever inet6 ::1/128 scope host valid_lft forever preferred_lft forever 2: enx747827c86d70: mtu 1500 qdisc pfifo_fast state DOWN group default qlen 1000 link/ether 74:78:27:c8:6d:70 brd ff:ff:ff:ff:ff:ff 3: wlp0s20f3: mtu 1500 qdisc noqueue state UP group default qlen 1000 link/ether dc:41:a9:fb:7a:c0 brd ff:ff:ff:ff:ff:ff inet 192.168.1.53/24 brd 192.168.1.255 scope global dynamic noprefixroute wlp0s20f3 valid_lft 82827sec preferred_lft 82827sec inet6 fe80::e1d:d71b:c507:5cc8/64 scope link noprefixroute valid_lft forever preferred_lft forever 

It really is not, actually. And there are other ways to find the IP address. I’ll discuss all this in detail. But first, let’s brush up the basics.

What is an IP Address?

An Internet Protocol address (commonly referred to as the IP address) is a numerical label assigned to each device connected to a computer network (using the Internet Protocol). An IP address serves both the purpose of identification and localisation of a machine.

The IP address is unique within the network, allowing communication between all connected devices.

You should also know that there are two types of IP addresses: public and private. The public IP address is used to communicate over the Internet, the same way your physical address is used for postal mail. However, in the context of a local network (such as a home where a router is used), each device is assigned a unique private IP address within this sub-network. This is used inside this local network without directly exposing the public IP (which the router uses to communicate with the Internet).

Another distinction can be made between IPv4 and IPv6 protocols. IPv4 is the classic IP format, consisting of a basic 4-part structure, with four bytes separated by dots (e.g., 127.0.0.1). However, with the growing number of devices, IPv4 will soon be unable to offer enough addresses. This is why IPv6 was invented, a format that uses 128-bit addresses (compared to the 32-bit IPv4).

Checking your IP Address in Ubuntu [Terminal Method]

The fastest and simplest way to check your IP address is by using the ip command. You can use this command in the following fashion:

Both commands show the same output. They will show you both IPv4 and IPv6 addresses: You should identify the correct interface and then look beside inet for IPv4 and inet6 for IPv6. For example, inet 192.168.1.53/24 means the IPv4 address is 192.168.1.53.

Just get the IP address

It will just give the IP address of the system. Nothing else. There are other ways to check IP addresses in Linux but these two commands are more than enough to serve the purpose.

Long-time users might be tempted to use ifconfig (part of net-tools), but that command is deprecated. Some newer Linux distributions don’t include this package anymore and if you try running it, you’ll see the ifconfig command not found error.

Checking IP address in Ubuntu [GUI Method]

If you are not comfortable with the command line, you can also check the IP address graphically. Open up the Ubuntu Applications Menu (Show Applications in the bottom-left corner of the screen) and search for Settings and click on the icon: This should open up the Settings Menu. Go to Network: Pressing on the gear icon next to your connection should open up a window with more settings and information about your link to the network, including your IP address: You can see the IP address of your router as well in the above screenshot. It’s displayed with “Default Route”.

Bonus Tip: Checking your public IP address (for desktop computers)

First of all, to check your public IP address (used for communicating with servers etc.) you can use the curl command. Open up a terminal and enter the following command:

This should simply return your IP address with no additional bulk information. I would recommend being careful when sharing this address since it is equivalent to giving out your personal address.

If curl isn’t installed on your system, simply use sudo apt install curl -y to install curl on Ubuntu-based Linux distributions.

Another simple way you can see your public IP address is by searching for the IP address on Google.

Summary

Here’s a summary of the commands you learned:

Description	Command
Show both IPv4 and IPv6 addresses with ip command	ip a or ip addr show
Print only IP address using hostname command	hostname -I
To check your public IP address (Need curl installed)	curl ifconfig.me
Display IP Address with Network Manager tool	nmcli -p device show
Use the ifconfig command to display the IP address (Need net-tools installed )	ifconfig -a

Now that you know your system’s IP address, how about getting the gateway IP? Boost your Linux networking skills with these essential commands! In this article, I went through the different ways you can find your IP address in Ubuntu Linux, as well as gave you a basic overview of what IP addresses are used for and why they are so important to us. I also discussed IPv4 and IPv6 briefly. By the way, have you ever wondered why there is no IPv5? I hope you enjoyed this quick guide. Let us know if you found this explanation helpful in the comments section!

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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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