Installing and Connecting to NordLayer VPN Client on Linux (2023-09-10)

This guide details the process of installing the NordLayer VPN client on a Linux operating system, with specific attention to the version available around September 10, 2023, and subsequently connecting to a virtual network. The NordLayer client facilitates secure access to private networks for businesses, enabling remote employees to connect to company resources as if they were physically present in the office. This document will cover necessary prerequisites, installation steps for common Linux distributions, and the connection process. It is crucial to obtain the correct installation package and any necessary credentials from your organization’s IT administrator.

Prerequisites for NordLayer VPN Client Installation on Linux

Before commencing the installation, ensure your Linux system meets the following requirements. The NordLayer client is generally compatible with most modern Linux distributions. Verify that your system has a stable internet connection, as the installation process involves downloading packages from repositories. Ensure you have administrative privileges (root access or sudo permissions) on your Linux machine. These are essential for installing software packages and configuring system-level network settings. Familiarize yourself with your Linux distribution’s package manager, as the installation commands will vary accordingly. Common package managers include apt for Debian/Ubuntu-based systems, dnf or yum for Fedora/CentOS/RHEL-based systems, and pacman for Arch Linux. Lastly, obtain the correct NordLayer client installer or repository details from your IT department. This might be a .deb file, a .rpm file, a specific repository URL, or a script provided by your administrator. Without these specific files or configurations, installation will not be possible.

Installation of NordLayer VPN Client on Debian/Ubuntu-based Systems

For users of Debian, Ubuntu, Linux Mint, or other distributions based on these, the installation typically involves adding the NordLayer repository and then installing the client package using apt. First, you will need to add the NordLayer repository to your system. This is often done by downloading a .deb file containing the repository configuration and then installing it. Open a terminal and navigate to the directory where you downloaded the .deb file (e.g., ~/Downloads). Execute the following command to install the repository package:

sudo dpkg -i nordlayer-repo_*.deb

Replace nordlayer-repo_*.deb with the actual filename of the downloaded repository configuration file. After the repository is added, you need to update your package list to include the new repository:

sudo apt update

Now you can install the NordLayer VPN client. The package name might vary slightly, but it’s typically nordlayer. Execute the following command:

sudo apt install nordlayer

This command will download and install the latest available version of the NordLayer client from the newly added repository. During the installation, you might be prompted to confirm package installations and dependencies. Review any prompts carefully and proceed. Once the installation completes, the NordLayer client should be ready for configuration and connection.

Installation of NordLayer VPN Client on Fedora/CentOS/RHEL-based Systems

For users of Fedora, CentOS, Rocky Linux, AlmaLinux, or Red Hat Enterprise Linux, the installation process typically involves downloading a .rpm package for the client or adding a repository. If your IT department provides a .rpm file, navigate to the download directory in your terminal and install it using dnf (for newer Fedora/RHEL-based systems) or yum (for older CentOS/RHEL-based systems).

Using dnf:

sudo dnf install nordlayer-*.rpm

Using yum:

sudo yum install nordlayer-*.rpm

Replace nordlayer-*.rpm with the actual filename of the downloaded RPM package.

Alternatively, your administrator might provide instructions to add a specific repository. This usually involves creating a .repo file in /etc/yum.repos.d/ or /etc/dnf/ with the necessary configuration details. For example, you might create a file named nordlayer.repo with content similar to this (the exact URL and keys will be provided by your administrator):

[nordlayer]
name=NordLayer Repository
baseurl=https://download.nordlayer.com/linux/rpm/
enabled=1
gpgcheck=1
gpgkey=https://download.nordlayer.com/linux/rpm/RPM-GPG-KEY-nordlayer

After creating or adding the repository file, you would update your package list and install the client:

sudo dnf update  # or sudo yum update
sudo dnf install nordlayer # or sudo yum install nordlayer

The commands for updating and installing are similar to the Debian/Ubuntu process, but they utilize the RPM package management tools.

Installation of NordLayer VPN Client on Arch Linux and Derivatives

Arch Linux and its derivatives like Manjaro use the pacman package manager. While NordLayer may not have official repositories directly integrated into Arch’s main repositories, it’s common for such clients to be available through the Arch User Repository (AUR). You will need an AUR helper like yay or paru to install packages from the AUR. If you don’t have an AUR helper installed, you’ll need to install one first.

Assuming you have yay installed, you can search for the NordLayer package and install it with:

yay -S nordlayer

This command will search for nordlayer in the AUR, download the PKGBUILD file, and then build and install the package. You will be prompted to review the PKGBUILD file and any dependencies. It’s a good practice to inspect the PKGBUILD for security before proceeding with the build. The process might take some time depending on your system’s performance and internet speed.

Initial Configuration and Login

Once the NordLayer client is installed on your chosen Linux distribution, the next step is to configure it with your network credentials and connect to your organization’s virtual network. The exact command to launch the NordLayer client application might vary. It is often launched from the terminal using nordlayer-ui for a graphical interface or nordlayer for a command-line interface. Consult your IT administrator for the precise command or if a desktop shortcut has been created.

Upon the first launch, you will likely be presented with a login screen or prompted for your credentials in the terminal. You will need to enter the username and password provided by your IT department. These are typically your corporate login credentials. Some organizations may use single sign-on (SSO) or multi-factor authentication (MFA), which might involve additional steps or redirects to an authentication portal. Follow the on-screen instructions or your administrator’s guidance for these scenarios.

Connecting to Your Virtual Network

After successfully logging in, you will need to select or connect to your organization’s specific virtual network. NordLayer allows businesses to create and manage multiple virtual networks. Your IT administrator will have configured your account to have access to the relevant network. The NordLayer client interface will usually display a list of available networks or a prominent "Connect" button that will automatically connect you to your primary assigned network.

If multiple networks are available, you may need to select the correct one from a dropdown menu or a list before initiating the connection. Click the "Connect" button. The client will then attempt to establish a secure VPN tunnel between your Linux machine and your company’s network infrastructure. You will typically see a status indicator (e.g., a changing icon, a message) in the client interface showing the connection progress and its success. A successful connection means your device is now part of your organization’s private network, allowing you to access internal resources like file servers, internal websites, and applications.

Verifying the VPN Connection

To ensure the VPN connection is functioning correctly, it’s advisable to verify your IP address and test access to internal resources. You can check your public IP address by visiting a website like whatismyipaddress.com before and after connecting to the VPN. When connected to the NordLayer VPN, your public IP address should change to one associated with your company’s network. More importantly, try accessing an internal resource that is only accessible within your company’s network. This could be an internal web application, a shared network drive, or an internal server. If you can access these resources, your VPN connection is successfully established and routed correctly.

Troubleshooting connection issues often involves checking your internet connection, verifying your login credentials, ensuring the NordLayer client is up-to-date, and confirming that your firewall is not blocking VPN traffic. Your IT administrator is the best resource for resolving persistent connection problems. They can check server-side configurations, user permissions, and network policies that might be affecting your connection. The specific version of the NordLayer client relevant to the September 10, 2023 timeframe suggests adhering to any deployment guidelines provided by your organization for that specific period, as updates can sometimes introduce compatibility changes.