Put a whatever password in the usual/etc/shadow. Usually a weak but easy to remember one.
When this password is accepted, put the user to a strong quarantine jail with a sh environment that can only be used to enter a second layer passphrase or any other custom authentication method.
The second layer authentication can be a long but easy to remember phrase, enforced using a simple custom shell script. I myself am using interactive methods which is even stronger: even if my ssh line is cracked, the password is not leaked.
Take a look at WIMS. It allows you to use most major OS math softwares without battling with the syntaxes, via a user-friendly web interface.
Many features are not directly offered by the individual software packages, OS or not. In particular the capability of generating sophisticated random exercises that can be used for open-question examinations.
More is to come but our experience shows that the existing tools are quite sufficient for freshmen needs in math computation.
WIMS can be accessed eith as a website, or as a local installation.
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Put a whatever password in the usual /etc/shadow. Usually a weak but easy to remember one.
When this password is accepted, put the user to a strong quarantine jail with a sh environment that can only be used to enter a second layer passphrase or any other custom authentication method.
The second layer authentication can be a long but easy to remember phrase, enforced using a simple custom shell script. I myself am using interactive methods which is even stronger: even if my ssh line is cracked, the password is not leaked.
Many features are not directly offered by the individual software packages, OS or not. In particular the capability of generating sophisticated random exercises that can be used for open-question examinations.
More is to come but our experience shows that the existing tools are quite sufficient for freshmen needs in math computation.
WIMS can be accessed eith as a website, or as a local installation.