Change Your Lost Webmin Password
At some point you will find yourself locked out of your Webmin console and in need to change the password for your user. Here's how:First, SSH/Telnet to the box in question.
You will need to know where Webmin is installed and the path to the script we will be using.
> whereis webmin
should print something like:
webmin: /etc/webmin
Then enter:
> locate changepass.pl
... and you should see something like this:
/usr/local/webmin-1.090/changepass.pl
Now just use the correct paths and add this at the end:
[username] [new password]
The entire thing together looks like this:
/usr/local/webmin-1.090/changepass.pl /etc/webmin [username] [new password]
Of course the user you specify will need to be a valid user in the Webmin config. This will not work for creating new Webmin users.