How to Check the network interface of your Linux system with ethtool – Guide

The NS ethtool Linux utilities allow you to view and change some of the network driver and interface card settings, especially for wired devices. This includes speed, whether the interface uses auto-negotiation, whether it should run in half-duplex or full-duplex mode, and other settings. Ethtool also provides an easy way to view or troubleshoot your network interface.

ethtool -l ethtool -g

ethtool -l This command prints out the current network adapter information.

ethtool -v ethtool (1.4.2-1ubuntu1) Copyright (C) 2014-2018, The Debian Project

This utility can control the settings of your Apple device by running a command similar to the following: NS -NS Means “help”. You’ll notice that you’re seeing a 10-page syntax like the one shown here.

show settings

To view the network interface settings on enp0s25, type: ethtool enp0s25. ..

This interface is working. The output also shows that link modes are supported and auto-negotiation is enabled. The speed (100 Mbps) and the interface running at full duplex are both shown.

netstat -an | grep Ethernet This will show you the network connections and their status.

Network Interface Statistics

The output has been split into two columns for easier viewing of settings. The first column is for the network interface, and the second column is for the status of that network interface. The network interface in the first column is currently active, while the network interface in the second column is not currently active.

This is a good sign.

sudo E -NS Test ..

The company is running a full set of tests, but this may disrupt normal operation. ..

change settings

You must use sudo to change network interface or run as root. Additionally, changes are not retained over reboots unless you also change settings in the configuration file for a specific Linux distribution. For some changes you will also need to disable the ifdown interface AND backup ifup so you need to work in the system console.

Final note

How to Check the network interface of your Linux system with ethtool If you’re using a Linux system, it’s important to be able to check the network interface. This can be done by using ethtool, a tool that’s included with many distributions. ethtool can be used to list all the interfaces on a system, or it can be used to test whether a specific interface is working correctly. To use ethtool, you first need to install it. If you’re using Debian or Ubuntu, this can be done by running apt-get install ethtool . If you’re using Fedora or CentOS, you’ll need to install libeth0 . Once these are installed, you can start ethtool by running sudoethtool . Once Ethtool is started, it will provide a variety of options for testing the network connection. You can use these options to test whether the network connection is working correctly, or if there are any problems. Some of these options include: ping -c 3 ping -t 3 wget -qO- http://www.debian.org/security/2015/dsa-3291.html | grep “inet addr” | awk ‘{print $2}’