Reset Azure VM Password or SSH Key: Methods

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Forgetting your VM password or losing your SSH key can be stressful, but Azure provides multiple ways to recover access. Below are three methods to reset your credentials.

1. Using Azure Portal (Help Section)

Navigate to your VM in the Azure Portal:

  • Go to Help > Reset password (for Windows) or Reset SSH (for Linux).
  • Follow the prompts to set a new password or SSH key.

2. Using Run Command (PowerShell/Bash)

For Windows:

net user <username> <newpassword> 

For Linux:

sudo passwd <username> 

3. Using Serial Console (Advanced Troubleshooting)

If you still have partial access, use the Serial Console under Support + troubleshooting in the Azure Portal.

You Should Know:

Windows VM Password Reset (PowerShell)

 Check user accounts 
net user

Reset password 
net user admin NewP@ssw0rd!

Force password change on next login 
net user admin /logonpasswordchg:yes 

Linux VM SSH Key Reset (Bash)

 Reset SSH key for a user 
sudo su - 
mkdir -p /home/<user>/.ssh 
echo "ssh-rsa <your_public_key>" > /home/<user>/.ssh/authorized_keys 
chmod 700 /home/<user>/.ssh 
chmod 600 /home/<user>/.ssh/authorized_keys 
chown -R <user>:<user> /home/<user>/.ssh 

Emergency Access via Azure CLI

az vm user update \ 
--resource-group <RG-Name> \ 
--name <VM-Name> \ 
--username <admin-user> \ 
--password <NewP@ssw0rd!> 

What Undercode Say

Losing access to a VM is common, but Azure’s built-in recovery options make it manageable. Always:
– Document credentials securely.
– Use SSH keys instead of passwords where possible.
– Enable Azure Backup for critical VMs.

For Linux admins, mastering chmod, chown, and `sudo` is crucial. Windows admins should know `net user` and PowerShell Remoting.

Expected Output:

  • Azure Portal Reset: Quick GUI-based solution.
  • Run Command: Script-based automation.
  • Serial Console: Last-resort direct access.

Relevant Links:

References:

Reported By: Wanderson Silva – Hackers Feeds
Extra Hub: Undercode MoN
Basic Verification: Pass ✅

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