Software & AppsOperating SystemLinux

How To Restart the Networking Service in Ubuntu?

Ubuntu 14

In the world of Linux, Ubuntu stands out due to its user-friendly interface and robust performance. However, like any other operating system, there are times when network services may need to be restarted. This article will guide you on how to restart the networking service in Ubuntu.

Quick Answer

To restart the networking service in Ubuntu, you can use different methods depending on your system setup. For Ubuntu desktop versions, you can simply disable and enable networking through the network icon in the top menu bar. For Ubuntu servers, you can use commands like sudo systemctl restart NetworkManager.service, sudo ifdown --exclude=lo -a && sudo ifup --exclude=lo -a, sudo ifconfig eth0 down && sudo ifconfig eth0 up, sudo systemctl restart systemd-networkd, or sudo service network-manager restart.

Understanding Networking Service in Ubuntu

Networking service in Ubuntu is managed by several tools such as NetworkManager, ifupdown, ifconfig, systemd-networkd, and the service command. These tools allow you to control your network settings and services. Restarting the networking service can help resolve connection issues and apply new network configurations.

Restarting Networking Service Using NetworkManager

NetworkManager is the default network management tool for Ubuntu desktop versions. It provides a graphical interface for network settings.

For Desktops

  1. Click on the network icon located in the top menu bar.
  2. Disable the networking by clicking on the ‘Enable Networking’ option to uncheck it.
  3. Enable it again by clicking on the same option.

This process will effectively restart the networking service.

For Servers

In Ubuntu servers, you can restart the NetworkManager service by using the following command:

sudo systemctl restart NetworkManager.service

The systemctl command is used to control the systemd system and service manager. restart is the option used to stop and then start a service. NetworkManager.service is the service that we want to restart.

Restarting Networking Service Using ifupdown

For servers, ifupdown can be used to control network interfaces. Use the following commands to restart the network interfaces:

sudo ifdown --exclude=lo -a && sudo ifup --exclude=lo -a

Here, ifdown disables a network interface, and ifup enables a network interface. The --exclude=lo option is used to exclude the loopback interface from being restarted. -a is used to restart all interfaces.

Restarting Networking Service Using ifconfig

You can also use the ifconfig command to restart a specific network interface. Replace “eth0” with your interface name:

sudo ifconfig eth0 down && sudo ifconfig eth0 up

In this command, ifconfig is used to configure a network interface. eth0 is the name of the network interface that you want to restart. down and up are used to disable and enable the network interface, respectively.

Restarting Networking Service Using systemd-networkd

You can use the following command to restart the systemd-networkd service:

sudo systemctl restart systemd-networkd

The systemd-networkd service is a system service that manages networks. It detects and configures network devices as they appear, as well as creating virtual network devices.

Restarting Networking Service Using the service command

Lastly, you can use the service command to restart the network-manager service:

sudo service network-manager restart

The service command runs a System V init script in as predictable an environment as possible, removing most environment variables and with the current working directory set to /.

Conclusion

Restarting the networking service in Ubuntu can be achieved in multiple ways. Depending on your system setup and the version of Ubuntu you are using, some methods may work better than others. Always remember to use the sudo command carefully, as it provides administrative privileges.

For more information on networking in Ubuntu, visit the official Ubuntu documentation.

What is the default network management tool in Ubuntu desktop versions?

The default network management tool in Ubuntu desktop versions is NetworkManager.

How can I restart the networking service using NetworkManager in Ubuntu desktops?

To restart the networking service using NetworkManager in Ubuntu desktops, click on the network icon in the top menu bar, disable networking by unchecking the ‘Enable Networking’ option, and then enable it again by checking the same option.

How can I restart the NetworkManager service in Ubuntu servers?

You can restart the NetworkManager service in Ubuntu servers by using the command sudo systemctl restart NetworkManager.service.

What is ifupdown and how can it be used to restart network interfaces in Ubuntu servers?

ifupdown is a tool used to control network interfaces in Ubuntu servers. To restart network interfaces using ifupdown, you can use the command sudo ifdown --exclude=lo -a && sudo ifup --exclude=lo -a. This command disables all network interfaces except the loopback interface and then enables them again.

How can I restart a specific network interface using ifconfig?

To restart a specific network interface using ifconfig, you can use the command sudo ifconfig [interface_name] down && sudo ifconfig [interface_name] up. Replace [interface_name] with the name of the network interface you want to restart.

What is systemd-networkd and how can I restart its service in Ubuntu?

systemd-networkd is a system service that manages networks in Ubuntu. You can restart its service by using the command sudo systemctl restart systemd-networkd.

How can I restart the network-manager service using the service command?

To restart the network-manager service using the service command, you can use the command sudo service network-manager restart.

Where can I find more information on networking in Ubuntu?

For more information on networking in Ubuntu, you can visit the official Ubuntu documentation at Ubuntu documentation.

Leave a Comment

Your email address will not be published. Required fields are marked *