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- Newsgroups: comp.unix.questions
- Path: sparky!uunet!uchdcc!erodrigu
- From: erodrigu@dcc.uchile.cl (Eduardo Rodriguez)
- Subject: Re: Funny mail !
- Originator: erodrigu@tortel
- Sender: usenet@dcc.uchile.cl (Network News)
- Message-ID: <1993Jan12.215253.10506@dcc.uchile.cl>
- Date: Tue, 12 Jan 1993 21:52:53 GMT
- References: <1993Jan7.092343.20412@newsserver.rrzn.uni-hannover.de> <C0HqIE.Inn@ucunix.san.uc.edu> <1993Jan7.174812.6883@leland.Stanford.EDU> <1993Jan11.213957.1660@kopachuk.uucp>
- Nntp-Posting-Host: tortel.dcc.uchile.cl
- Organization: Universidad de Chile, Depto. de Ciencias de la Computacion
- Lines: 30
-
-
- In article <1993Jan11.213957.1660@kopachuk.uucp>, dcb@kopachuk.uucp (David Breneman) writes:
- > In article <1993Jan7.174812.6883@leland.Stanford.EDU> dkeisen@leland.Stanford.EDU (Dave Eisen) writes:
- > >
- > >It is a problem. On many systems, when a user deletes the last
- > >piece of mail in his mailbox, the mail program unlinks the user's
- > >entry in /usr/spool/mail. This, of course, is a disastrous
- > ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
- > >misfeature of these mail programs, but unfortunately, that is
- > ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
- > >how mail works on these systems. /usr/spool/mail should not be
- > >world writeable.
- > >
- >
- > Why?
-
- Because you can set the sticky bit on the directory /usr/spool/mail
- (or /var/spool/mail). When this bit is set on a directory, it means
- that users may not delete or rename other users' files in this
- directory. Then you can have each user mailbox secure, and never
- deleted or changed (or created by other user with no permission
- for the properly owner).
-
- edo...
-
- //// Fortuna mia la de ```\ . Eduardo Rodriguez .
- c-OO concurrir aqui, por OO-c . erodrigu@dcc.uchile.cl .
- \ virtud de la palabra. / . Dpto Cs de la Computacion .
- - *bow* - . Universidad de Chile .
-