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Mastering Static IP Address Configuration on Ubuntu 1804: Your Comprehensive Guide

Setting Up a

Static IP Address on Ubuntu 18.04: A Comprehensive Guide

Do you want to configure your Ubuntu device to use a static IP address? If so, you’ve come to the right place.

In this article, we’ll cover everything you need to know about setting up a static IP address on Ubuntu 18.04.When you connect your device to a network, it is assigned an IP address. In most cases, this IP address is assigned dynamically using the

DHCP protocol.

However, in some situations, you may want to use a static IP address. This is especially true if you are setting up a media server, or if you need to forward ports to a specific device on your network.

There are two different ways to configure a static IP address on Ubuntu 18.04. You can either configure it using

DHCP, or you can set a manual IP address for your device.

Let’s look at each of these options in more detail.

Configuring

Static IP Address using

DHCP

One way to configure a static IP address on your Ubuntu device is by making use of a feature known as

DHCP reservation.

DHCP reservation allows you to reserve a specific IP address for your device using its MAC address.

This way, your device will always be assigned the same IP address whenever it connects to the network. To set up a

DHCP reservation for your device, you will need to access your router’s configuration page.

The exact steps for doing this will depend on the type of router you are using. Most routers have a web-based interface that you can access by typing its IP address into your web browser.

Once you are logged into your router’s configuration page, look for the

DHCP reservation section. Here, you can assign a static IP address for your device using its MAC address.

Make sure to choose an IP address that is within the range of your network. This way, your device will be able to communicate with other devices on the network.

Netplan – Configuring

Static IP Address on Ubuntu Server

If you are running an Ubuntu server, you can configure a static IP address using the netplan tool.

Netplan is a YAML-based network configuration utility that is used to configure networks on Ubuntu systems.

When using netplan to configure your static IP address, you will need to specify the network interface name as well as the IP address, subnet mask, gateway, and DNS servers that you want to use. This information can be found in your router’s configuration page.

To get started, you can use the ip link command to display the predictable network interface names for your device. These interface names are based on the MAC address of your device, making it easy to identify the correct interface.

Once you know the name of your network interface, you can create a YAML file in the /etc/netplan directory that specifies the configuration details for your network. To apply these changes, simply run the netplan apply command.

Netplan – Configuring

Static IP Address on Ubuntu Desktop

If you are using Ubuntu Desktop, you can configure a static IP address using the GNOME network configuration settings. To access these settings, click on the network icon in the Activities screen and select “Settings”.

In the settings window, click on the network tab and select your network connection. Here, you can choose the IPV4 Method as “Manual” and enter the IP address, subnet mask, gateway, and DNS servers that you want to use.

Network Configuration Options

Now that we’ve covered the different ways to configure a static IP address on Ubuntu, let’s take a look at some of the other network configuration options available.

DHCP

Dynamic Host Configuration Protocol (

DHCP) is a network protocol that assigns IP addresses dynamically to devices on a network.

DHCP is commonly used in home and office networks.

When using

DHCP, your device will be assigned an IP address automatically whenever it connects to the network. This IP address might change over time, which can make it difficult to connect to your device reliably.

However,

DHCP is a convenient option that requires little configuration.

Static IP Address

A static IP address is an IP address that is manually set for a device on a network. This IP address will not change unless it is manually reconfigured.

A static IP address is helpful when you need to forward ports to a specific device on the network. However, it requires more configuration than

DHCP.

Netplan

Netplan is a network configuration utility that is used to configure networks on Ubuntu systems.

Netplan allows for more advanced network configurations than

DHCP or static IP addresses.

It uses YAML syntax to specify network interfaces, IP addresses, and other configuration parameters.

Netplan works with both NetworkManager and Systemd-networkd, two network management utilities used in Ubuntu. This makes it a flexible option that can be used in a variety of network configurations.

Conclusion

In conclusion, configuring a static IP address on your Ubuntu device is possible using either

DHCP or manual configuration.

DHCP is a convenient option that requires little configuration, while manual configuration allows for more advanced network configurations.

Netplan is a useful tool for configuring complex networks on Ubuntu systems. By following the instructions outlined above, you should be able to configure your Ubuntu device to use a static IP address with ease.

3)

Configuring

Static IP Address using

DHCP Reservation

When you connect a device to a network, it is typically assigned an IP address automatically using Dynamic Host Configuration Protocol (

DHCP). While this is a convenient option, the assigned IP address may change over time which can make it difficult to locate the device on the network.

To avoid this, you can use

DHCP Reservation to assign a static IP address to your device.

DHCP Reservation allows you to reserve a specific IP address for your device using its Media Access Control (MAC) address. A MAC address is a unique identifier assigned to each physical network device.

By specifying a static IP address using the device’s MAC address, you can ensure that the device always has the same IP address when it connects to the network. This makes it easier to locate and manage the device on the network, particularly if you are using the device as a media server.

To configure

DHCP Reservation on your network, you will need to access your router’s configuration page. The steps for doing this differ depending on the type of router you are using.

Consult the vendor documentation for specific instructions on how to access your router’s configuration page. Once you have logged into your router’s configuration page, look for the

DHCP Reservation section.

Here, you can specify the MAC address of your device and the IP address you want to assign to it. Make sure to choose an IP address that is within the range of your network.

After configuring

DHCP Reservation on your router, your device will always be assigned the same IP address when it connects to the network. If you need to locate or connect to the device, you can use this IP address to connect to it.

4)

Netplan Configuration

Netplan is a YAML-based network configuration utility that is used to configure networks on Ubuntu systems. It allows you to configure complex network configurations, including assigning static IP addresses, VLANs, and bridges.

In this section, we’ll take a closer look at some of the key components of

Netplan configuration.

YAML Syntax

Netplan configuration files use YAML syntax, a human-readable data serialization language. YAML files consist of a series of key-value pairs organized into ordered lists and maps.

It’s important to pay close attention to indentation in YAML code, as it is used to determine the structure of the file. Improper indentation can lead to configuration errors.

Network Renderer

Netplan works with two network management utilities, NetworkManager and Systemd-networkd, which are used to manage network interfaces. NetworkManager is a front-end utility that provides a graphical user interface (GUI) for configuring network interfaces.

Systemd-networkd is a back-end renderer that handles low-level network interface configuration. When configuring

Netplan, you will need to select one of these network renderers.

Ethernet Interface

Network configuration in

Netplan is organized around network interfaces. In particular, Ethernet interfaces are commonly used to create and manage network connections.

You can configure Ethernet interfaces using a range of options, including assigning a static IP address, configuring VLANs and bridges, and setting up

DHCP clients. Configuring a

Static IP Address

To configure a static IP address on Ubuntu using

Netplan, you will need to create a YAML file in the /etc/netplan directory that specifies the network interface and its configuration parameters.

The configuration file should include details such as IP address, subnet mask, gateway address, and DNS server addresses. Here is an example of a basic

Netplan configuration file:

“`

network:

version: 2

renderer: networkd

ethernets:

enp0s3:

dhcp4: no

addresses: [192.168.1.100/24]

gateway4: 192.168.1.1

nameservers:

addresses: [8.8.8.8, 8.8.4.4]

“`

In this example, the YAML configuration file specifies the network renderer as networkd, and assigns a static IP address of 192.168.1.100 to the Ethernet interface enp0s3.

To apply the changes made to the configuration file, you will need to run the following command in the Terminal:

“`

sudo netplan apply

“`

This command will apply the changes to the network configuration, and assign the static IP address to the device.

Conclusion

Configuring static IP addresses using

DHCP Reservation or

Netplan can help improve network stability and ensure that devices are always accessible on the network. Both methods require some level of configuration, but can offer benefits for specific use cases such as media servers or port-forwarded devices.

While

Netplan configuration files can be more complex, YAML syntax makes it clear and easy to read and write even for those new to network configuration.

5) Configuring Static IP on Ubuntu Desktop

Ubuntu Desktop comes with a user-friendly graphical interface that allows users to configure network settings easily. In this section, we’ll take a closer look at how to configure a static IP address on Ubuntu Desktop using the GNOME network configuration settings.

GNOME Network Configuration Settings

To configure a static IP address on Ubuntu Desktop, we first need to access the GNOME network configuration settings. This can be done by clicking on the network icon in the top-right corner of the screen.

The network icon looks like a circular icon with two curved lines and a dot in the middle of it. Once clicked, a dropdown menu will appear with a list of available network connections.

Choose the one you want to configure and click on the gear icon located next to the network name. This will open the networking settings window.

In the networking settings window, select the network connection you want to modify and click on the “Settings” button. This will open the network settings dialog for the selected connection.

Manual IP Configuration

To assign a static IP address to the selected network connection, select the “IPv4” tab, and then under “IPv4 Method”, select “Manual”. This will allow you to enter the IP address, subnet netmask, gateway address, and DNS server addresses manually.

– IP address: Enter the desired IP address for your device. Make sure that the IP address you choose is not already in use on the network.

– Netmask: In the subnet mask field, enter the subnet mask for your network. Subnet masks are used to divide network IP address blocks into smaller segments.

– Gateway: The gateway is the IP address of the device on your network that is used to manage traffic between your device and devices on other networks. – DNS: Enter the DNS server IP address that your device will use to resolve web addresses.

After entering all required information, click on the “Apply” button to save the changes. You may be prompted to enter your admin password.

Verification

To verify that the network connection now has the configured static IP address assigned to it, you can use the Terminal to display the assigned IP address. Open up the Terminal and enter the following command:

“`

ip addr show

“`

This command will display a list of the network interfaces on your device and their assigned IP addresses. Look for the network interface that you just configured and verify that it has the correct static IP address assigned to it.

By configuring a static IP address on your Ubuntu Desktop device, you can ensure that it always has the same IP address assigned to it. This can be useful for connecting to services running on your device from other devices on the network.

In conclusion, configuring a static IP address on Ubuntu 18.04 is essential for maintaining a reliable and easily accessible network connection. Whether through

DHCP Reservation or

Netplan configuration, having a static IP address ensures that your device consistently receives the same IP address, making it easier to locate and manage on the network.

Using the GNOME network configuration settings on Ubuntu Desktop, users can easily set a static IP address using the manual configuration method. Verifying the assigned IP address through the Terminal provides reassurance that the configuration was successful.

By understanding and implementing these techniques, users can optimize their network settings and enjoy a more stable and manageable network experience. Remember, a static IP address is the key to hassle-free networking.

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