Date: Wed, 07 Oct 1998 19:26:15 -0400 From: Malartre <malartre@aei.ca> To: freebsd-questions@FreeBSD.ORG Subject: What's the difference between su and exec login? Message-ID: <361BF897.C5060064@aei.ca>
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I am currently working on a project wich try to do windows/macos transition to unix easy. But I cannot get the difference betweem "su" and exec login. Here is what I know When I su, I keep my original ID. Also, I can su without being in the wheel group, with the restriction of not su-ing to root (ie, not in the correct group to su root error) When I exit, I exit to my previous account. exec login simply exit the shell and ask me if I want to login. Here is what I writed: ********** In FreeBSD, there are 3 kind of users: root, elvis-user and super-user root is the only admin user. He can do everything, even crash/destroy the system. Don't give the root password to anyone, including people who want to hum say -fix- one of your problem on irc. elvis-user are those kind of simple user who don't have the power to do anything harmfull to the system. Elvis will be our exemple of user in all the screenshot I will show you. (ie. no untrusted user should be allowed on your system, since some are enough evil to be harmfull has a user) super-user are those user you really trust (usually only yourself). Those user are the same type has the elvis-user family but have the advantage to be in the wheel group and to execute the su (Super User) program. The su program allow the super-user to become another user of any kind (another super-user, a simple user or the root user) has long has he has the required password for the user he want to be. A super-user has all the restriction of the user, so he is also harmless has long has he don't know the root password. ********* There is many error in that text. -- [Malartre][malartre@aei.ca][http://www.aei.ca/~malartre/] To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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