How to see Network card in Linux?

How to See Network Card in Linux

Introduction

In this article, we will guide you through the process of identifying and viewing your network card in Linux. Linux is a popular operating system that is widely used for various tasks, including network administration, file management, and system configuration. Understanding how to view your network card is an essential skill for any Linux user, as it allows you to troubleshoot and optimize your network setup.

Step 1: Open the Network Manager

To view your network card in Linux, you need to open the Network Manager. The Network Manager is a graphical user interface (GUI) that allows you to manage your network connections, including your network card. To open the Network Manager, follow these steps:

• Open the System Settings application.
• Click on Network.
• Select Network Manager from the list of available options.

Step 2: View Network Cards

Once the Network Manager is open, you can view your network cards by clicking on the Network tab. This tab displays a list of all available network connections, including your network card.

• Network Card: This is the network card that you want to view.
• Network Connection: This is the connection that is currently active.
• Network Interface: This is the interface that is currently connected to the network.

Step 3: View Network Card Details

To view more detailed information about your network card, you can click on the Network Card tab. This will display a list of all available network cards, including their MAC addresses, IP addresses, and other details.

• MAC Address: This is the unique address assigned to your network card.
• IP Address: This is the IP address assigned to your network card.
• Subnet Mask: This is the subnet mask that is used to divide the IP address into smaller segments.
• Default Gateway: This is the default gateway that is used to connect to the internet.

Step 4: View Network Card Configuration

To view the configuration of your network card, you can click on the Network Card tab and then select the Configuration option. This will display a list of all available network card configurations, including their settings and options.

• IP Address: This is the IP address that is assigned to your network card.
• Subnet Mask: This is the subnet mask that is used to divide the IP address into smaller segments.
• Default Gateway: This is the default gateway that is used to connect to the internet.
• DHCP Server: This is the DHCP server that is used to assign IP addresses to devices on your network.

Step 5: Use the Network Manager to Add or Remove Network Cards

To add or remove a network card, you can use the Network Manager. To add a new network card, follow these steps:

• Click on the Network tab.
• Click on the Add button.
• Select Network Card from the list of available options.
• Enter the MAC address and IP address of the network card.
• Click on the Add button.

To remove a network card, follow these steps:

• Click on the Network tab.
• Select the network card that you want to remove.
• Click on the Remove button.

Step 6: Use the Command Line to View Network Cards

To view network cards using the command line, you can use the following command:

nmcli d wifi

This command will display a list of all available wireless networks, including their MAC addresses, IP addresses, and other details.

• MAC Address: This is the unique address assigned to your wireless network card.
• IP Address: This is the IP address assigned to your wireless network card.
• Subnet Mask: This is the subnet mask that is used to divide the IP address into smaller segments.
• Default Gateway: This is the default gateway that is used to connect to the internet.

Conclusion

In this article, we have covered the steps to view your network card in Linux. By following these steps, you can easily identify and view your network card, including its MAC address, IP address, subnet mask, and default gateway. Additionally, you can use the Network Manager and the command line to add or remove network cards, and to view detailed information about your network card. By understanding how to view your network card, you can troubleshoot and optimize your network setup, and ensure that your network is running smoothly.

Table: Network Card Information

Field	Description
MAC Address	Unique address assigned to the network card
IP Address	IP address assigned to the network card
Subnet Mask	Subnet mask used to divide the IP address into smaller segments
Default Gateway	Default gateway used to connect to the internet
DHCP Server	DHCP server used to assign IP addresses to devices on the network

Tips and Tricks

• To view network cards in a specific network, use the nmcli d wifi command with the –network option.
• To add a new network card, use the nmcli d wifi command with the –add option.
• To remove a network card, use the nmcli d wifi command with the –remove option.
• To view detailed information about a network card, use the nmcli d wifi command with the –details option.