Lunix Diagnostic Tools

 

Linux Diagnostic Tools

End-users can use many diagnostic tools in the command line interface within the Linux Operating System. Namely, the following:

1.      Ip

2.      Ethtool

3.      Ss

4.      Iwconfig

5.      Nmcli

6.      Brctl

7.      Nmtui

The ip command is used to view or edit routing, devices, and tunnels. It is similar to the if command but with more available functions. End-users/admins can also use the Ip command to configure network interface parameters, assign a network interface address, and modifying and configuring ip addresses and routes.

The ethtool command can display and modify Ethernet adapter settings. Some settings include network card speed, duplex mode, wake on LAN, and auto –negotiation. The ethtool can also be used to troubleshoot Ethernet card issues.

The ss command is similar to the netstat command but shows more information. It displays the status of TCP, UDP, DCCP, PACKET, RAW, and Unix domain sockets. The information you receive is very detailed on how the Linux system communicates and connects with networks, services, and other machines.

The iwconfig command is similar to the ifconfig command. It is used to set and view the network interface parameters such as SSID and frequency.

The nmcli command is used to control the NetworkManager. It can also display the status of network devices, edit, create, activate\/deactivate, and delete network connections

The brctl command is used to create and manage Ethernet bridge. It is most commonly used to combine multiple Ethernet networks on servers as one logical network. You can also add, delete, and display existing Ethernet bridges.

The nmtui command is the alternative to the nmcli command. It allows you to configure network interfaces using a graphical display.