Software & AppsOperating SystemLinux

How To Check VPN Connection Status from Command Line

Ubuntu 9

Virtual Private Networks (VPN) are a critical tool in maintaining data security and privacy. When using a VPN, it’s essential to know whether your VPN connection is active or not. In this article, we’ll explore how to check the status of a VPN connection from the command line in Linux using the nmcli command.

Quick Answer

To check the VPN connection status from the command line in Linux, you can use the nmcli command. There are several methods you can use, such as checking all connections, checking active connections, or checking specific connections. By using the appropriate nmcli commands, you can easily determine whether your VPN connection is active or not.

Introduction to nmcli

nmcli is a command-line tool for controlling NetworkManager and reporting network status. It can be utilized to create, display, edit, delete, activate, and deactivate network connections, as well as control and display network device status.

Checking VPN Connection Status

There are several ways to check the status of a VPN connection using nmcli. Here are some of the most common methods:

Method 1: Checking All Connections

To check the status of all connections, including VPN, use the following command:

nmcli con

This command lists all the connections that NetworkManager is aware of. To filter this list to show only VPN connections, you can use the grep command:

nmcli con | grep -i vpn

The grep command searches the output of the nmcli con command for lines containing the word “vpn”. The -i option makes the search case-insensitive.

Method 2: Checking Active Connections

If you only want to see active connections, you can use the --active option:

nmcli con show --active

This command lists only the connections that are currently active. Again, to filter this list to show only VPN connections, you can use the grep command:

nmcli con show --active | grep -i vpn

Method 3: Checking Specific Connections

If you know the name of your VPN connection, you can check its status directly using the status command:

nmcli con status id your-vpn-connection-name

Replace your-vpn-connection-name with the name of your VPN connection. If the connection is active, this command will display detailed information about it. If it’s not active, it will display an error message.

Please note that the specific commands and options may vary depending on your Linux distribution and version of nmcli. For more information, you can consult the nmcli documentation or use the --help option:

nmcli --help

Conclusion

Checking the status of a VPN connection from the command line is a straightforward process once you know the right nmcli commands. It’s an essential skill for any system administrator or anyone who needs to ensure their VPN is functioning correctly. With the commands and methods outlined in this article, you’ll be able to quickly and easily check your VPN connection status whenever you need to.

Can I check the status of a VPN connection using `nmcli` on Windows?

No, nmcli is a command-line tool for controlling NetworkManager, which is primarily used on Linux-based systems. On Windows, you can check the status of a VPN connection using the netsh command or by checking the network settings in the system tray.

How can I install `nmcli` on my Linux system?

nmcli is typically included in the NetworkManager package, which should already be installed on most Linux distributions. If it’s not installed, you can install it using your package manager. For example, on Ubuntu-based systems, you can use the following command to install NetworkManager:

sudo apt-get install network-manager
Can I check the status of a VPN connection using graphical tools instead of the command line?

Yes, many Linux distributions provide graphical network management tools that allow you to check the status of VPN connections. These tools are often available in the system settings or network settings menu. Additionally, some VPN clients may have their own graphical interfaces for checking connection status.

How can I activate or deactivate a VPN connection using `nmcli`?

To activate a VPN connection using nmcli, you can use the following command:

nmcli con up id your-vpn-connection-name

Replace your-vpn-connection-name with the name of your VPN connection. To deactivate a VPN connection, you can use the down command instead:

nmcli con down id your-vpn-connection-name
Can `nmcli` be used to configure VPN connections?

Yes, nmcli can be used to create, edit, and delete network connections, including VPN connections. You can use commands like add, edit, and delete to manage your VPN connections. For more information on how to configure VPN connections with nmcli, you can refer to the nmcli documentation or use the --help option.

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