> ## Documentation Index > Fetch the complete documentation index at: https://docs.preprod.world/llms.txt > Use this file to discover all available pages before exploring further. # Connect to a Virtual Machine via the Gcore customer portal The [VNC console](https://en.wikipedia.org/wiki/Virtual_Network_Computing) in the [Gcore Customer Portal](https://portal.gcore.com) provides browser-based access to a Virtual Machine (VM) without requiring internet access on the VM — useful for troubleshooting connectivity issues. Both Windows and Linux VMs are supported. Connecting to a Linux Virtual Machine via the Customer Portal requires a [password](/cloud/virtual-instances/customize-initial-setup-for-your-instance#set-a-password-for-an-instance) set during VM creation. Without one, use [SSH keys](/cloud/virtual-instances/connect/connect-via-ssh) instead. On Windows VMs, the password is set in the **Access** field during VM creation — the **User data** field cannot be used for passwords on Windows. Enter that password at the login screen. To connect to a Virtual Machine: 1\. In the Customer Portal, navigate to **Cloud** > **Virtual Instances**. 2\. Find the VM to access and click its name to open it. Virtual Instances list in the Gcore Customer Portal 3\. Next to the VM's IP address, select the **Access to Console** link. The VNC console will open. VM overview with IP address, Access to Console button, and SSH login link 4\. In the top-right corner of the screen, click **Send CtrlAltDel**. 5\. Enter the password set during VM creation. The username for all Windows VMs is `Admin`. Windows login screen The VM connection is established. Windows desktop after connecting to the VM Linux VMs without a configured password cannot connect via the Customer Portal — use SSH keys instead. For VMs in a private subnet only, the [Dynamic Host Configuration Protocol](/cloud/virtual-instances/create-an-instance#enable-DHCP) must be enabled in the subnet settings for password-based login to work. To connect to a Virtual Machine: 1\. In the Customer Portal, navigate to **Cloud** > **Virtual Instances**. 2\. Find the VM to access and click its name to open it. Virtual Instances list in the Gcore Customer Portal 3\. Next to the VM's IP address, select the **Access to Console** link. The VNC console will open. VM overview with IP address, Access to Console button, and SSH login link 4\. Log in using the following credentials: * **username** : Shown next to the **Access to Console** button in the format `[username]@[ip-address]` — typically the OS name, for example `ubuntu`. The VNC terminal displays this as `login:`. * **password** : The password set in the **User data** field under **Additional options** during instance creation. Ubuntu terminal displaying the VNC login prompt If a password was set during VM creation but is no longer known: connect to the VM via SSH and run `sudo cat /var/lib/cloud/instance/user-data.txt`. The password appears in the line: `password: [password]`. If a hash was used, the hash appears instead of a readable value. The Virtual Machine connection is established. Ubuntu terminal displaying successful connection to an instance