How to change your GSI Linux (Kerberos) password
For the impatient
- Obtain a Linux command line (eg. on a
- You will be prompted for your current Kerberos password and for your new password (twice)
Step 1: Access to the command line ...
- If you are working on any GSI Linux machine (hostname begins with
lx...) with a graphical user interface you only have to open a command line window (terminal), e.g.
konsole for KDE or
xterm. The corresponding button in the KDE panel looks like a monitor, simply click on this icon.
- If you are working with Windows you'll have to open a session to a Linux machine via ssh using a Secure Shell Client. The following screenshots show the usage of
putty: To start a connection you'll have to enter
lx-pool.gsi.de as the 'Host Name', then click on the button
Open. In the console window you can enter your Linux account name and your actual (i.e. old) UNIX/Linux password below). If you are connecting to a ssh server for the first time you'll have to accept its ssh key. To ensure that the target belongs to the host group
lx-pool.gsi.de you may compare its fingerprint with the value on this page, then click
OK or any corresponding button of your Windows client. For Linux clients you'll have to type
yes and hit
Step 2: Change your password on a Linux-machine
Use the command passwd
. There will be no visual feedback when typing the password to prevent eavesdropping.
Please take note of the current password rules
Watch out for errors. If you fail to fulfill the password rules, an error will be printed to tell you what went wrong, otherwise a message of success will be printed.
Dont forget to close the command line session after finishing your work. You can logout by typing
Q: I've forgotten my old UNIX/Linux password, how can I reset it?
A: Please contact the UserHelpDesk
(SB3 1.247, -2515).
Q: My proposed new password isn't accepted, why that?
A: You have to fulfil the password-rules stated in Step 2
Q: How can I create a "strong" password?
A: Use a password manager. Have a look at the information on passwords
on the web site of GSI..