using mod auth_mysql with apache for authentication

[Rajeev Prasad]

Hello,

currently i have  mod auth_mysql configured and running as plaintext password:

1. how can i generate crypt_des passwords to store in database?
2. how can i get a user log out once the browser tab is  closed. seems i have to
close the browser and reopen, then only i am presented login box.
3. what password options are available for AuthMySQL_Encryption_Types to use under
ubuntu?

thanks a lot.

Rajeev