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| = 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. |
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| yppasswd | passwd |
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| = Email = | = Email / Web Server = |
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| = How to choose a good password = | = More information on passwords = |
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| To choose a password which is not easy to guess, use a non predictable combination of upper/lower case letters along with numbers and special characters. To help you create a safe password log in via ssh to login.coli.uni-saarland.de (using your old password) and start 'apg' {{{ ssh login.coli.uni-saarland.de apg -a0 -MNLC -m8 -x8 }}} You may choose any of the suggestions, if you like you can modify them a little. |
A very good way to create hard to guess, yet easy to remember passwords (or passphrases) is to employ the "diceware" method using real world, physical dice. In short * roll a dice 5 times, * look up the word which corresponds to the result using an existing list of words, * repeat until you have 6 words * 30 dice rolls in total) A more detailled description including word lists for many languages can be found here: |
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| More tips on secure passwords can be found here: http://www.microsoft.com/protect/fraud/passwords/create.aspx | http://world.std.com/~reinhold/diceware.html |
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, yet easy to remember passwords (or passphrases) is to employ the "diceware" method using real world, physical dice. In short
- roll a dice 5 times,
- look up the word which corresponds to the result using an existing list of words,
- repeat until you have 6 words
- 30 dice rolls in total)
A more detailled description including word lists for many languages can be found here: