This article will help you to configure static IPv4 addresses on Ubuntu systems using the Netplan command-line tool.

Check the Network Interface Name

First of all, you need to identify the network interface name. It can differ based on the installation type and system environment.

• To find the interface name type:

  sudo nmcli device status 
  

  Output:
  DEVICE  TYPE      STATE      CONNECTION
  eth0  ethernet  connected  Wired connection 1
  lo      loopback  unmanaged  --
  

• You can also check the interface name using the ip command:

  sudo ip a 
  

  

The above output shows that the system is configured with the network interface name eth0. This can be different on your system. So please verify the system network interface name with the ip a command as shown above.

Configuring the Static IP Address using Netplan

Netplan stores all the configuration files under /etc/netplan directory. As you already have the network interface name found in the above commands. Now, we will configure the static IP address to that interface using the NetPlan utility.

Let’s, create a configuration file and edit it in your favorite text editor:

sudo vi /etc/netplan/01-netcfg.yaml 

Add the network configuration in YAML format. The below configuration uses 4 spaces due to strict indentation followed by the YAML.

network:
    version: 2
    renderer: networkd
    ethernets:
        eth0:
            addresses:
                - 192.168.0.210/24
            nameservers:
                addresses: [8.8.8.8, 8.8.4.4]
            routes:
                - to: default
                  via: 192.168.0.254

In the above configuration:

• eth0 – is the network interface name
• 192.168.0.210/24 – is the IPv4 address to set on interface. Make sure to define CIDR. You can add multiple IP address as well.
• routes via 192.168.0.254 – Set the gateway IP address of the network
• 8.8.8.8, 8.8.4.4 – is the IP address of the Google DNS servers.

Make sure the IPv4 address belongs to the system network and has the correct gateway Ip address.

Once confirmed, press ESC and :wq to save file content and close it.

Now, execute the following command to apply the changes:

sudo netplan apply 

This will configure the static IPv4 address on the network interface. Now the system will be accessible with the new IP address you configured above.

Conclusion

In this tutorial, you have learned to configure the network interface on Ubuntu systems.

The post Configuring the Static IPv4 Address on Ubuntu using Netplan appeared first on TecAdmin.

Ubuntu 22.04 desktop edition comes with an attractive Gnome Desktop Environment. You can either use the command prompt to check the current IP address on your system or use a GUI option to view the local IP address on your system.

You can also use another article to change IP address on Ubuntu 22.04 desktop and server editions.

Choose one of the below methods to check the current IP address on a Ubuntu system.

Method 1: Checking IP Address via Command Line on Ubuntu 22.04

The Ubuntu desktop users Press CTRL+ALT+T to open the terminal and the server user connects to the system over SSH.

Once you get the terminal access, execute the ip addr show or its short version ip a command to view all the configured IPv3 addresses on network intefaces.

ip a 

You will see all the assigned ipv4 addresses on network interfaces.

The above output shows that the 192.168.1.212 IP with 24 netmark is configured on the system

Method 2: Checking IP Address in Ubuntu 22.04 Desktop

To follow this method, you must have a desktop environment on your Ubuntu system. Now,

1. Log in to the Ubuntu desktop system and open settings as shown on the below screen.

   

2. In the left sidebar click on the Network tab. After that click icon to open the setting for your systems network interface as shown on the below screen.

   

3. A new dialog box will appear with the details of all IPv4 addresses configured on the network interfaces.

   

Wrap Up

In this tutorial, you have learned to find the currently configured IP address on a Ubuntu system. Hope this tutorial provides you with the right instruction and is helpful for you.

The post How to Check IPv4 Address on Ubuntu 22.04 appeared first on TecAdmin.

Ubuntu 20.04 LTS (Focal Fossa) desktop provides an attractive GUI interface to work with it. You can either use the command prompt to check the current IP address on your system or use a GUI option to view the local IP address on your system.

Follow this tutorial to setup a new IP address on Ubuntu 20.04 desktop system.

Method 1 – Ubuntu 20.04 Check IP via GUI

Login to your Ubuntu Desktop system. Then open settings windows on your Ubuntu Desktop machine as showing in the below screenshot.

In the left sidebar click on the Network tab. After that click icon to open setting for your systems network interface as shown in the below screen.

Here is the IP address of your Ubuntu desktop system. It also show you the default network route and dns servers details.

You can also view the IP address via the command line. Use method 2 to view IP.

Method 2 – Ubuntu 20.04 Check IP via CLI

Press CTRL + ALT + T to launch the terminal on Ubuntu desktop system. Then run the following command to view current IP addresses configured on your system.

ip addr show

The post How to Check IP Address on Ubuntu 20.04 (Desktop) appeared first on TecAdmin.

CentOS 8 is the latest available Linux operating system from the CentOS team. The desktop provides an attractive GUI for working with it. You can either use the command prompt to check the current IP address on your system or use a GUI option to view the local IP address on your system.

Follow this tutorial to configure new IP on CentOS 8 desktop system.

Method 1 – Check IP via Command (CentOS 8)

Open a command terminal by pressing CTRL + ALT + T on your CentOS system. Now type following IP command to view current IP addresses configured on your system.

ip addr show

Method 2 – Check IP via GUI (CentOS 8)

For this option, you must have Desktop installed on your CentOS 8 system. Now, login to your CentOS Desktop system and open settings windows on your machine as showing in the below screen.

In the left sidebar click on the Network tab. After that click icon to open setting for your systems network interface as shown in the below screen.

Here is the IP address of your Ubuntu desktop system.

The post How to Check IP Address on CentOS 8 appeared first on TecAdmin.

As of today, The CentOS 8 Linux operating system is the latest available version of CentOS. The desktop provides an attractive GUI for working with it. You can easily change or set a static IP address on your Desktop system.

Step 1 – Open Network Settings

Login to your CentOS 8 Desktop system. After that open settings windows on your CentOS Desktop machine as showing in the below screen.

In the left sidebar click on the Network tab. After that click icon to open setting for your systems network interface as shown in the below screen.

This window will show you the current IP address configured on your system. Now select the IPv4 tab.

Step 2 – Setup Static IP on CentOS 8

Under the IPv4 Method select the “Manual” option.

Now go to the Addresses section and set your IP Address, Netmask, and Gateway.

You can also set remote DNS IP addresses. If you don’t know what to set here use 8.8.8.8 and 8.8.4.4 as shown in the above screenshot.

Then click the Apply button to save changes.

Step 3 – View Current IPs

Open a terminal on your CentOS 8 Linux system. Now type following IP command to view all IP addresses configured on your system.

ip addr show

In case the new IP is not showing, simply enable/disable networking on your system and check IP again.

The post How to Configure Static IP Address on CentOS 8 appeared first on TecAdmin.

Fedora desktop provides an attractive GUI for working with it. You can either use the command prompt to check the current IP address on your system or use a GUI option to view local IP address on your system.

Follow this tutorial to configure new static IP on a Fedora desktop system.

Method 1 – Fedora Check IP via GUI

Login to your Fedora Desktop system. After that open settings windows on your Fedora Desktop machine as showing in the below screen.

In left sidebar click on Network tab. After that click icon to open setting for your systems network interface as shown in below screen.

Under the details tab, You will see the IP address of your Fedora desktop system. You will also see the default route and DNS configured on this screen.

Method 2 – Fedora Check IP via CLI

Press CTRL + ALT + T to launch the terminal on your Fedora Desktop system. Then use ip command to view current IP addresses configured on your Fedora system.

ip addr show

The post How to Check IP Address on Fedora Desktop appeared first on TecAdmin.

We will discuss 2 methods for configuring static IP addresses on Fedora using GUI and terminal.

Method 1: Configuring Static IPv4 Address on Fedora with GUI

The Fedora Desktop editions provide a graphical user interface for managing the system configuration. You can quickly configure the network interfaces using GUI. Follow the below steps to configure a static IP address on Fedora Desktop systems.

Open Settings:

• Log in to the Fedora desktop system with a privileged account.
• Search and open system Settings on your system

.



Open Network Settings:

• Select the Network tab in the left sidebar
• You will see the Wired section, Click the gear icon as shown below screenshot



IPv4 Settings:

• You will see the Details tab, here you can find the current system IP details
• Go to the IPv4 section



Set a new IP address:

• In the IPv4 Method select “Manual” option.
• In the Addresses section, set the new IP address, Netmask, and the Gateway.
• In the DNS section, set the IP address of your DNS server. In the below screenshot, I have used 8.8.8.8 (Google public DNS server) and 192.168.1.2 (local DNS server)
• Click the Apply button at top-right corner



Disable and Enable Networking:

Now, disable the networking and enable it again to apply the changes immediately.



All done

Congratulations you have successfully configured a static IP address on the Fedora desktop system.

Method 2: Configuring Static IPv4 Address on Fedora with CLI

The fedora provides nmcli command-line tool for managing NetworkManager. In this method, we will help you to configure the static IP address on Fedora system via command line.

1. First check the current network settings and identify the interface name:

   sudo nmcli 
   

   

2. Set the static IP address to ‘Wired connection 1’. The below command uses folloiwng settings. Here:
   • Connection Name: ‘Wired connection 1’
   • Interface Name: eth0
   • IP Address & Netmask: 192.168.1.210/24
   • Gateway Address: 192.168.1.2

   sudo nmcli con modify 'Wired connection 1' ifname eth0 ipv4.method manual ipv4.addresses 192.168.1.210/24 gw4 192.168.1.2 
   

3. If required, you can also update the DNS server settings.

   sudo nmcli con mod 'Wired connection 1' ipv4.dns 8.8.8.8,8.8.4.4 
   

4. Down and Up the network connection.

   sudo nmcli con down 'Wired connection 1' &&  sudo nmcli con up 'Wired connection 1' 
   

5. Again check the IP address of your system.

   ip a 
   

   

How to Check IP Address on Fedora

Press CTRL + ALT + T to launch the terminal on your Fedora system. Now type the following IP command to view all IP addresses configured on your system.

ip addr show 

Conclusion

This tutorial describes 2 methods for configuring static IP addresses on the Fedora system using a graphical user interface and a command line interface.

The post How to Configure Static IP Address on Fedora appeared first on TecAdmin.

What is an IP Address?

A Internet Protocol address (IP address) is the numerical label assigned to each hardware devices connected to a computer network that uses the Internet Protocol to identify the devices. In general terms, it is an identity of any devices. An IP address allows a device to communicate with other devices over an IP-based network like the LAN or Internet.

• Read: How to Flush/Clear DNS Cache on Windows?

How to Check Windows IP Address

Launch the Windows command prompt by typing cmd on run window.

Then use ipconfig command on Windows system command prompt. This will show you the details of all network interfaces configured on your Windows system.

c:\> ipconfig 

Sample output:

Windows IP Configuration

Ethernet adapter Ethernet:

   Connection-specific DNS Suffix  . :
   Link-local IPv6 Address . . . . . : fe80::9121:66bc:8eb9:a58f%3
   IPv4 Address. . . . . . . . . . . : 192.168.1.5
   Subnet Mask . . . . . . . . . . . : 255.255.255.0
   Default Gateway . . . . . . . . . : 192.168.1.1

Tunnel adapter isatap.{BCC1ECE9-D9A3-4AC4-95CC-9F51D28E8AD6}:

   Media State . . . . . . . . . . . : Media disconnected
   Connection-specific DNS Suffix  . :

As per the above output, this system has IP address 192.168.1.5 on Ethernet adapter. The default gateway is set to 192.168.1.1. The Gateway is a network device (eg: router) in Local area network directly connected to the internet.

You can also view the detailed information of the network interfaces by specifying /all command line parameters with ipconfig command. For example:

c:\> ipconfig /all 

Sample output:

Windows IP Configuration

   Host Name . . . . . . . . . . . . : TecAdmin-PC
   Primary Dns Suffix  . . . . . . . :
   Node Type . . . . . . . . . . . . : Hybrid
   IP Routing Enabled. . . . . . . . : No
   WINS Proxy Enabled. . . . . . . . : No

Ethernet adapter Ethernet:

   Connection-specific DNS Suffix  . :
   Description . . . . . . . . . . . : Realtek PCIe GBE Family Controller
   Physical Address. . . . . . . . . : D4-3D-7E-B6-24-22
   DHCP Enabled. . . . . . . . . . . : No
   Autoconfiguration Enabled . . . . : Yes
   Link-local IPv6 Address . . . . . : fe80::9121:66bc:8eb9:a58f%3(Preferred)
   IPv4 Address. . . . . . . . . . . : 192.168.1.5(Preferred)
   Subnet Mask . . . . . . . . . . . : 255.255.255.0
   Default Gateway . . . . . . . . . : 192.168.1.1
   DHCPv6 IAID . . . . . . . . . . . : 64241022
   DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-22-41-AD-6D-D4-3D-7E-B6-24-22

   DNS Servers . . . . . . . . . . . : 8.8.8.8
                                       192.168.1.1
   NetBIOS over Tcpip. . . . . . . . : Enabled

Tunnel adapter isatap.{BCC1ECE9-D9A3-4AC4-95CC-9F51D28E8AD6}:

   Media State . . . . . . . . . . . : Media disconnected
   Connection-specific DNS Suffix  . :
   Description . . . . . . . . . . . : Microsoft ISATAP Adapter
   Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
   DHCP Enabled. . . . . . . . . . . : No
   Autoconfiguration Enabled . . . . : Yes

The post How To Check IP Address on Windows via Command Prompt appeared first on TecAdmin.

Ubuntu 18.04 systems are using netplan instead of older static interfaces. The desktop provides an attractive GUI for working with it. You can easily change or set a static IP address on your Ubuntu system.

For the server edition, you can follow this tutorial to configure IP address on Ubuntu using the command line.

Step 1 – Open Network Settings

Login to your Ubuntu Desktop system. After that open settings windows on your Ubuntu Desktop machine as showing in the below screen.

In the left sidebar click on the Network tab. After that click icon to open setting for your systems network interface as shown in the below screen.

This window will show you the current IP address configured on your system. Now select the IPv4 tab.

Step 2 – Setup Static IP on Ubuntu 18.04

Under the IPv4 Method select the “Manual” option.

Now go to the Addresses section and set your IP Address, Netmask, and Gateway.

You can also set remote DNS IP addresses. If you don’t know what to set here use 8.8.8.8 and 8.8.4.4 as shown in below screenshot.

Step 3 – View Current IPs

Press CTRL + ALT + T to launch the terminal on your Ubuntu system. Now type following IP command to view all IP addresses configured on your system.

ip addr show

The post How to Configure Static IP Address on Ubuntu 18.04 (Desktop) appeared first on TecAdmin.

Ubuntu 18.04 desktop provides an attractive GUI for working with it. You can either use the command prompt to check the current IP address on your system or use a GUI option to view the local IP address on your system.

Follow this tutorial to configure new IP on Ubuntu 18.04 desktop system.

Method 1 – Ubuntu 18.04 Check IP via GUI

Login to your Ubuntu Desktop system. After that open settings windows on your Ubuntu Desktop machine as shown in the below screen.

In the left sidebar click on the Network tab. After that click icon to open the setting for your systems network interface as shown in the below screen.

Here is the IP address of your Ubuntu desktop system.

Method 2 – Ubuntu 18.04 Check IP via CLI

Press CTRL + ALT + T to launch the terminal on your Ubuntu system. Now type the following IP command to view the current IP addresses configured on your system.

ip addr show

The post How to Check IP Address on Ubuntu 18.04 (Desktop) appeared first on TecAdmin.