|
Size: 1149
Comment:
|
Size: 1316
Comment:
|
| Deletions are marked like this. | Additions are marked like this. |
| Line 1: | Line 1: |
| = 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. |
|
| Line 5: | Line 16: |
| yppasswd | passwd |
| Line 10: | Line 21: |
| = Email = | = Email / Web Server = |
| Line 13: | Line 24: |
| = How to choose a good password = | = More information on passwords = |
| Line 19: | Line 31: |
| 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 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: |
| Line 26: | Line 35: |
| 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 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: