Knowledgebase

If you've lost access to the root password on a Linux server and can't log in through VNC, you can reset the root password using a recovery method. Here are the steps you should follow:

Step 1: Reboot into Recovery Mode

1. Stop or Reboot the Server:
   • Shut down or reboot your server through the hosting provider's control panel. In some cases, you may need to request technical support for access to the recovery console.

Step 2: Connect to the Recovery Console

1. Use a VNC Client:
   • Connect to the recovery console provided by your hosting provider using a VNC client. This may require a special link or instructions from the service provider.

Step 3: Mount the Root Filesystem

1. Mount the Filesystem:
   • Once connected to the recovery console, mount the root filesystem. Typically, this can be done with the following command (the device name might differ):
     bash

     Копировать код

     mount /dev/sda1 /mnt

Step 4: Change Root Directory

1. Change Root Directory:
   • Use the chroot command to change the root directory to the mounted filesystem:
     bash

     Копировать код

     chroot /mnt

Step 5: Reset the Root Password

1. Use the passwd Command:
   • Reset the root password using the following command:
     bash

     Копировать код

     passwd root
   • The system will prompt you to enter a new password twice. Enter and confirm the new password.

Step 6: Reboot the Server

1. Exit and Reboot:
   • Exit the recovery mode and reboot the server to apply the new root credentials:
     bash

     Копировать код

     exit reboot

Notes

• Ensure you use this method only if there is no other way to regain access to the server.
• After successfully resetting the password, update your security settings and ensure the new password is secure.
• These steps may vary depending on your hosting provider and server configuration. If you encounter difficulties or have questions, contact your service provider’s technical support or consult a qualified system administrator.