How to password protect a programme?

Hello, is there any way to password protect a programme? For example, if I wanted to password protect FTP, how could I do that?


thankyou.

 

Password protect from? Starting up?
Mrk

 

Yes, so for example if I click on FTP to start it up, it will ask for a password first before it loads,

thankyou.

 

Not sure what the context is, but password-protecting an application won't do anything that encryption or access control couldn't do better, IMO.

 

That can be achieved in Windows using a standard user account and parental controls... don't know if something similar can be done in Linux.

 

Thankyou, any suggestions on how to set up access control and encryption?

thankyou.