How to choose a good password
A practical approach for choosing a new passwords is to
ssh login.coli.uni-saarland.de apg -a0 -MNLC -t -m10 -x10
Passwords generated this way will take on average approximately 64 years to be broken by a 8xTitan-X GPU cluster node.
Linux / MacOS
To change your password please log in with SecureShell (ssh) to 'login.coli.uni-saarland.de' and enter the command 'yppasswd'.
ssh login.coli.uni-saarland.de passwd
Windows
Press CTRL-Alt-Del and select "Change Password". Windows passwords are independent from Linux / MacOS / Mail passwords.
Email / Web Server
Your email password is the same as your Linux / MacOS password.
More information on passwords
A password should be
- kept secret
- changed on a regular basis
- not be easy to guess by others (like your Matrikelnummer or 'klausi1' for instance)
A very good way to create hard to guess passwords (or passphrases) is to employ the "diceware" method using real world, physical dice. In short, roll a dice 5 times, look up a word which correlates to the result from a list of words, repeat until you have 6 words. A more detailled description incluing ord list for many languages can be found here: