help problems about vsftp
I am a novice, recently successfully configged a vsftp server in the redhat linux 9. Now I want to add several new functions could you please tell me how to actualize them?
1. How to make special customs login vsFTP at appointed time, and other customs can visit my vsFTP server any time?
2. How to make different document different privilege? My linux has 5 users, each user has his own 2 document, one is read only, the other can be write and read.
3. Is there any latent danger? If somebody knows other's user name, they try password take pains, one day thay can get true password. which log can I see that somebody has tried password time to time ??
thank you for helping me!