7 Easy Steps to Enable SSH in NSX-T Manager for Enhanced Security

Introduction: An Intriguing Story on Secure Shell and NSX-T Manager

Once upon a time in a high-security data center, an administrator was trying to find the best way to manage his virtualized network infrastructure securely and efficiently. He discovered VMware’s NSX-T and was amazed by its robust features and capabilities. However, he quickly realized that to unlock the full potential of NSX-T Manager, he needed to enable SSH for better access and control. But how could he do that? A quest ensued, leading him through countless hours of research and experimentation before finally uncovering the secrets of how to enable SSH in NSX-T Manager. Join us on this journey, as we unravel the mysteries of NSX-T and Secure Shell together!

Understanding NSX-T Manager and Secure Shell (SSH)

Before diving into enabling SSH in the NSX-T Manager, let’s take a moment to understand the technologies at play. NSX-T Manager is a robust network management solution developed by VMware that enables organizations to manage their virtualized networks with ease. It offers features like micro-segmentation, load balancing, and network automation, making it ideal for managing complex multi-cloud environments.

On the other hand, Secure Shell (SSH) is a cryptographic network protocol that allows secure remote access to network devices, servers, and systems. By enabling SSH on the NSX-T Manager, administrators can gain more secure access to the platform for advanced network management tasks and streamline operations.

Why Enabling SSH in NSX-T Manager is Necessary

Now that you have an understanding of NSX-T Manager and SSH, you might be asking, “Why is it necessary to enable SSH in NSX-T Manager?” The answer is quite simple. By default, NSX-T Manager does not have SSH enabled, which means you are limited in terms of remote management capabilities. By enabling SSH, you can:

1. Gain secure remote access to the NSX-T Manager platform
2. Easily perform advanced management tasks
3. Automate operations via remote scripting and tools

Now that we have covered the importance of enabling SSH in NSX-T Manager, let’s discuss the steps required to accomplish this task.

How to Enable SSH in NSX-T Manager: Step-by-Step Guide

Following are the detailed steps to enable Secure Shell in NSX-T Manager:

*Note: The steps outlined below are applicable to NSX-T Manager version 2.5 and later.*

Step 1: Access the NSX-T Manager CLI

To begin, you need to access the NSX-T Manager Command Line Interface (CLI). You can do this by:

1. Logging into the NSX-T Manager virtual appliance using the VM Console in your hypervisor (e.g., VMware ESXi or vSphere)
2. Entering your username (default is “admin”) and password when prompted

Step 2: Set the CLI Modes

Once you have accessed the NSX-T Manager CLI, set it to *privileged* mode by entering the following command:


Next, set the mode to *configure* by entering the following command:

configure terminal

Step 3: Enable SSH Service

With the CLI now in configure mode, enable the SSH service with the following command:

service ssh start

You should see a confirmation message indicating that the SSH service has been started successfully.

Step 4: Configure the SSH Service

After enabling the SSH service, proceed to configure it by executing the following commands:

ssh allow-host

Replace “ with the IP address of the remote system you wish to allow SSH access from. This is an important security measure, as it restricts SSH access to only the specified IP addresses.

You can also configure the SSH port by executing the following command:

ssh port

Replace “ with the desired port number for the SSH service. By default, SSH uses port 22, but you can change it for security purposes or to avoid conflicts with other services.

Step 5: Save and Exit

Once you have configured the SSH service, save your changes with the following command:


Finally, exit the configure mode by entering the following command:


You have now successfully enabled SSH in NSX-T Manager!

Conclusion: Unlocking the Power of Secure Shell and NSX-T Manager

By following the steps outlined in this guide, you should now have a clear understanding of how to enable SSH in NSX-T Manager. As a result, you have unlocked the ability to perform advanced network management tasks, automate operations, and secure remote access to your virtualized network infrastructure. Remember the administrator from our story in the introduction? You’ve now joined him in becoming an expert on enabling SSH in NSX-T Manager, and your journey to mastering secure network management is well underway!

How to SSH on Windows 10 (natively)

YouTube video

This web UI for Ansible is so damn useful!

YouTube video

How to NOT Harden SSH

YouTube video

How do you enable SSH in the NSX V Manager?

To enable SSH in the NSX V Manager, follow these steps:

1. Log in to the NSX V Manager web interface using your administrator credentials.

2. Click on the Manage tab located at the top of the page.

3. Navigate to the Settings section and select General.

4. Scroll down to the SSH section.

5. Toggle the Enable SSH checkbox to turn on the SSH service.

6. Click Save to apply the changes.

Now, the SSH service is enabled on the NSX V Manager, allowing you to access it remotely via any standard SSH client.

Remember that enabling SSH access can increase the security risk, so ensure that only authorized users have access to the NSX V Manager and use strong authentication methods for added security.

How can I deactivate SSH in the NSX manager?

To deactivate SSH in the NSX Manager, follow these steps:

1. Log in to the NSX Manager using your web browser.

2. Click on the System tab on the top menu.

3. In the left sidebar menu, go to Appliance > Settings > Security Settings.

4. In the Security Settings window, you will see an option labeled SSH Service.

5. Click on the toggle switch next to the SSH Service to turn it off. The switch will change from green (enabled) to gray (disabled).

6. Press the Save button at the bottom of the page to save your changes.

By completing these steps, you have successfully deactivated SSH in the NSX Manager.

How can one activate SSH within VMware?

To activate SSH within VMware, follow these steps:

1. Access the VMware ESXi or vSphere Hypervisor console: First, log into your VMware ESXi or vSphere Hypervisor machine using either a remote console like iDRAC, iLO, or directly connecting a monitor and keyboard.

2. Press F2 to customize the system: Once you are in the console, press F2. This will prompt you to enter your username (usually “root”) and password, which you set during the initial installation of the hypervisor.

3. Navigate to the “Troubleshooting Options” menu: After successfully logging in, use the arrow keys to navigate to the “Troubleshooting Options” menu and press Enter.

4. Select “Enable SSH”: Within the “Troubleshooting Options” menu, choose the “Enable SSH” option and press Enter. This will activate the Secure Shell service on your VMware host, allowing remote access via the SSH protocol.

5. Configure firewall settings (optional): If necessary, modify your firewall settings to allow incoming SSH connections. This process may vary depending on your environment’s network security configuration.

6. Verify SSH is enabled: To check that SSH is enabled, return to the main VMware console screen. You should see an indication that SSH is enabled in the lower-right corner of the display.

Now, you can connect to your VMware host using an SSH client (such as PuTTY or OpenSSH) and manage your virtual machines remotely.

Remember to follow your organization’s security policies and disable SSH when it’s not needed to minimize potential security risks.

How can I activate SSH on an NSX Edge?

To activate SSH on an NSX Edge, follow these steps:

1. Login to the vSphere Web Client.

2. Navigate to the Networking & Security section.

3. In the left pane, click on NSX Edges to display the list of NSX Edge instances.

4. Select the specific NSX Edge on which you want to activate SSH.

5. Click on the Actions drop-down menu and choose Settings and then System Configuration.

6. In the System Configuration window, click on the Edit button in the top-right corner.

7. Within the Edit Configuration window, locate the SSH Status section.

8. Change the SSH status from Disabled to Enabled by selecting the appropriate option in the drop-down box.

9. Click on the Save button to apply the changes.

10. Now, the SSH service is activated on the selected NSX Edge instance.

Remember that for security reasons, it’s recommended to only enable SSH when necessary and disable it once you have completed your tasks.

What are the prerequisites and requirements to enable SSH in NSX-T Manager in the context of {topic}?

In the context of Secure Shell (SSH), the prerequisites and requirements to enable SSH in NSX-T Manager are as follows:

1. NSX-T Manager: Ensure you have a running instance of NSX-T Manager.

2. Access to NSX-T Manager CLI: You must have access to the Command Line Interface (CLI) of the NSX-T Manager, either through direct console access or a terminal emulator like PuTTY.

3. User Privileges: You need to have administrator privileges on the NSX-T Manager to make configuration changes related to SSH.

4. SSH Service: Make sure the SSH service is enabled on the NSX-T Manager appliance.

To enable SSH on your NSX-T Manager, follow these steps:

1. Access the NSX-T Manager CLI using console access or a terminal emulator like PuTTY.

2. Log in with your NSX-T Manager administrator credentials.

3. Enter the command `get service ssh` to verify the current status of the SSH service.

4. If the SSH service is disabled, enable it by entering the command `set service ssh start`.

5. To ensure the SSH service starts automatically when the NSX-T Manager boots up, enter the command `set service ssh enable-on-boot`.

After completing these steps, SSH will be enabled on your NSX-T Manager, allowing secure remote access for managing and configuring the system.

Can you provide a step-by-step guide on how to enable SSH in NSX-T Manager in the context of {topic}?

In this step-by-step guide, we will explain how to enable SSH in NSX-T Manager. This is an essential task whenever you need to access the NSX-T Manager via a Secure Shell (SSH) connection.

Step 1: Log in to the NSX-T Manager
To start, you need to log in to the NSX-T Manager’s user interface using your preferred web browser. Enter the following URL format:


Step 2: Access the system settings
Once logged in, go to the main navigation menu on the left side of the screen. Click on the ‘System’ tab to access the system settings.

Step 3: Navigate to the Appliances tab
Now, click on the ‘Appliances’ tab located near the top of the page. This tab displays information about your installed NSX-T appliances, including the NSX-T Manager.

Step 4: Select the NSX-T Manager appliance
Find the NSX-T Manager appliance in the list and click on the three dots icon located on the right side of its row. From the dropdown menu, choose ‘Settings’ to access the appliance settings.

Step 5: Enable SSH access
Locate the ‘SSH Access’ section on the settings page. Change the toggle button from “Disabled” to “Enabled” to allow SSH connections to the NSX-T Manager appliance.

Step 6: Save the changes
After enabling SSH access, click on the ‘Save’ button to apply the changes. A confirmation message should appear, stating that the settings have been successfully saved.

Step 7: Verify and use SSH access
To ensure that SSH is enabled, you can use an SSH client such as PuTTY or the built-in SSH command line tool on your local system. Connect to the NSX-T Manager appliance using its IP address or FQDN:

ssh @

Enter your password when prompted, and if the connection is successful, you should now be able to access the NSX-T Manager via SSH.

In conclusion, by following this step-by-step guide, you have successfully enabled SSH in the NSX-T Manager appliance. This capability allows for secure remote management of the appliance through a command-line interface.

What security best practices should be followed when enabling SSH in NSX-T Manager in the context of {topic}?

When enabling SSH in NSX-T Manager, it is important to follow security best practices to ensure that your system remains secure. In the context of Secure Shell (SSH), consider implementing the following recommendations:

1. Use strong authentication methods: It is crucial to use strong authentication methods like public key authentication or certificates instead of relying solely on password-based authentication.

2. Restrict access to the SSH service: Limit the users and devices that can access the NSX-T Manager’s SSH service by setting up access control lists (ACLs) or firewall rules.

3. Disable root logins: It is a good practice to disable SSH logins for the root user. Instead, create a separate user account with administrative privileges and use sudo to execute commands that require elevated rights.

4. Enable Secure Shell (SSH) protocol version 2: Ensure you are using the latest version of the Secure Shell (SSH) protocol, which is version 2, to avoid potential security vulnerabilities.

5. Use strong encryption algorithms: Configuring SSH to use strong encryption algorithms, such as AES-256, can help in protecting the data transmitted over the SSH connection.

6. Regularly update software: Regularly update your NSX-T Manager and your SSH implementation to stay ahead of potential security vulnerabilities and to patch any known issues.

7. Monitor and audit SSH activity: Continuously monitor and audit SSH activity in NSX-T Manager to detect unusual patterns or unauthorized access attempts. Investigate these incidents to determine if they represent potential security threats and take appropriate action.

8. Disable unused features: To reduce the attack surface, turn off any unnecessary features in your SSH implementation, such as TCP forwarding, X11 forwarding, or agent forwarding.

9. Implement SSH key rotation and management: Regularly rotate and manage SSH keys to limit unauthorized access, especially in cases where keys may have been compromised.

By following these security best practices when enabling SSH in NSX-T Manager, you can significantly reduce the risk of security breaches and protect your system from potential threats.

How can one troubleshoot common issues that may arise when enabling SSH in NSX-T Manager in the context of {topic}?

When troubleshooting common issues that may arise when enabling SSH in NSX-T Manager, it’s important to consider the following key points:

1. Check if SSH is enabled: Ensure that SSH has been enabled properly in the NSX-T Manager settings. You can verify this by logging into the NSX-T Manager via the GUI and navigating to “System” > “Settings” > “CLI Access settings” to enable or confirm that SSH access is allowed.

2. Confirm correct SSH credentials: Make sure you are using the correct SSH credentials (username and password) for the NSX-T Manager. The default username is usually “admin.” If you have changed the password, ensure you are using the updated password.

3. Check SSH service status: Validate that the SSH service is running on the NSX-T Manager by logging into the NSX-T Manager CLI-console using the console interface and running the following command:
get service ssh

4. Verify network connectivity: Confirm there are no network-related issues preventing an SSH connection to the NSX-T Manager. This could include firewalls blocking the port (typically 22), incorrect routing, or other networking problems.

5. Inspect SSH logs: Review the SSH logs on the NSX-T Manager to identify any errors related to SSH connections. You can access these logs by logging into the NSX-T Manager CLI-console and running the following command:
show log system ssh-server.log

6. Confirm NSX-T Manager appliance status: Make sure the NSX-T Manager appliance is healthy and running as expected. You can check this by examining the status of various components within the NSX-T Manager via the GUI or CLI.

7. Test SSH connectivity: Try connecting to NSX-T Manager using an SSH client like PuTTY or OpenSSH. Ensure that the client is properly configured with the correct port, hostname or IP address, and authentication details.

By considering these key points and following the appropriate processes, you should be able to identify and resolve many common issues related to enabling SSH on NSX-T Manager in the context of Secure Shell.

Are there any differences in enabling SSH in NSX-T Manager depending on the deployment type or environment in the context of {topic}?

In the context of secure shell (SSH), there are some differences in enabling SSH in NSX-T Manager depending on the deployment type or environment. Here are the key points highlighted using :

1. NSX-T Manager on a VM: Enabling SSH in NSX-T Manager when it is deployed as a virtual machine (VM) can be done by logging into the NSX-T Manager’s web interface, navigating to System > Appliance Management, and toggling the SSH service status switch.

2. NSX-T Manager on a Physical Appliance: In case NSX-T Manager is deployed on a physical appliance, you will need to access the appliance console directly or through a remote console like iDRAC/iLO, log in, and then enable SSH via the command-line interface (CLI) by executing the command: set service ssh enable.

3. Multi-node Cluster Deployment: When deploying NSX-T Manager in a multi-node cluster, you must enable SSH for each node individually by following the steps mentioned above for the respective deployment type.

4. Different Environments: The process of enabling SSH on NSX-T Manager may slightly vary across different environments, such as VMware Cloud on AWS, Azure VMware Solutions, or Google Cloud VMware Engine. However, the core concept remains similar – you’ll need to access the manager’s interface and enable the SSH service.

Remember to ensure that the necessary firewall rules are in place to allow SSH traffic between your client and the NSX-T Manager for seamless connectivity.