VMware Enable SSH: A Step-by-Step Guide for ESX Hosts

Enable SSH on your ESX hosts to grant secure remote access to your virtual machines and host. VMware provides several methods to enable SSH, depending on your ESX version and the desired level of access. This guide covers the different approaches for ESX versions 4.0.0 and newer, as well as some important considerations when enabling SSH.

Enable SSH Permanently (ESX Versions 8 and Newer)

To enable SSH permanently on an ESX host running version 8 or newer, follow these steps:

1. Log in to the ESX host via the web console.

2. Select “Host” from the top menu bar.

3. Click “Actions” and then select “Services.”

4. Find “Secure Shell (SSH)” in the list of services and click the “Enable” button next to it.

5. Confirm the action by clicking “OK.”

Enable SSH Permanently (ESX Versions 6.5 and Newer)

For ESX versions 6.5 and newer, you can enable SSH permanently using the vCenter Web client or directly on the ESX host. Here are both methods:

Method 1 (vCenter Web Client):

1. Log in to the vCenter Web client and navigate to the “Hosts and Datacenters” view.

2. Select the ESX host you want to enable SSH for.

3. Click “Configure” and then select “Services.”

4. Locate “SSH” in the list of services and click the “Edit” button next to it.

5. Set the “Start-up Policy” to “Start and stop with the host” and click “OK.”

Method 2 (Directly on ESX Host):

1. Log in to the ESX host via the web console.

2. Select “Host” from the top menu bar.

3. Click “Actions” and then select “Services.”

4. Find “Secure Shell (SSH)” in the list of services and click the “Enable” button next to it.

5. Confirm the action by clicking “OK.”

Enable SSH Remotely (ESX Versions 5 and Newer)

To enable SSH remotely on an ESX host running version 5 or newer, follow these steps:

Method 1 (vCenter Web Client):

1. Log in to the vCenter Web client and navigate to the “Hosts and Datacenters” view.

2. Select the ESX host you want to enable SSH for.

3. Click “Configure” and then select “Security Profile.”

4. Scroll down to “Services” and locate “SSH.”

5. Click the “Edit” button next to it and set the “Start-up Policy” to “Start and stop with the host.”

6. Click “OK.”

Method 2 (Directly on ESX Host):

1. Log in to the ESX host via the web console.

2. Select “Host” from the top menu bar.

3. Click “Actions” and then select “Services.”

4. Find “Secure Shell (SSH)” in the list of services and click the “Enable” button next to it.

5. Confirm the action by clicking “OK.”

Important Considerations When Enabling SSH

1. Be aware that enabling SSH on your ESX hosts may expose your host to potential security risks, so exercise caution when enabling SSH, especially in production environments.

2. Ensure you have a strong root password for the ESX host, as this will be used for SSH access.

3. If you’re using version 4.0.0 or older, you may need to enable SSH locally from the console using troubleshooting options.

4. Keep in mind that enabling SSH permanently will display a warning message on the host summary page.

5. To suppress this warning message in version 6.5 and newer, you can follow the steps outlined in the “Enable SSH Permanently” section above.

Conclusion

In conclusion, enabling SSH on your ESX hosts provides secure remote access to your virtual machines and host. VMware offers several methods to enable SSH, depending on your ESX version and desired level of access. Remember to exercise caution when enabling SSH, especially in production environments, and ensure you have a strong root password for the ESX host.