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- Path: sparky!uunet!gatech!rutgers!princeton!ernie.Princeton.EDU!news
- From: serge@dadofsam (Serge J. Goldstein)
- Newsgroups: comp.sys.next.sysadmin
- Subject: Re: re: Mail.app not reading /usr/spool/mail directory...
- Message-ID: <1992Jul31.142321.9321@Princeton.EDU>
- Date: 31 Jul 92 14:23:21 GMT
- References: <1992Jul27.213307.351@fnbc.com>
- Sender: news@Princeton.EDU (USENET News System)
- Organization: Princeton University
- Lines: 28
- Originator: news@ernie.Princeton.EDU
- Nntp-Posting-Host: dadofsam.princeton.edu
-
- In article <1992Jul27.213307.351@fnbc.com> lemson@fnbc.com (David Lemson)
- writes:
- > In article <1992Jul24.133416.2867@bmw.mayo.edu> brunkhorst@mayo.edu (Geoff
- > Brunkhorst) writes:
- > > I ran into this last week after blindly believing COPS which
- > > told me write access to that directory is considered a security risk
- > > (It probably is, but...)
- >
- > It's not a risk as long as the sticky bit (that final 't' in the
- > permissions on the listing given by ls -lg) is set. /tmp should be the
- > same way. (mode 1777 for you octal fans)
- > drwxrwxrwt 3 root wheel 1024 Jul 27 15:56 mail
- > --
- > David Lemson (312) 732-4741
- > FNBC Sys Admin (Summer) UIUC NeXT Campus Consultant(rest of the time)
- > E-mail to: lemson@fnbc.com NeXTMail accepted
- I also ran into the problem of not making /usr/spool/mail world-writeable.
- What bothered me about this is that Mail did not issue any error messages
- anywhere --- not to the console, not to an Alert panel, not to
- /usr/adm/messages, nowhere. Here is a premiere application that tries to write
- to a directory, fails, aborts the requested function, and says nothing at all.
- A very poor show. Also, adding the sticky bit will certainly prevent users
- from removing files (other than theirs) from the directory, but it will not
- prevent users from adding files to the directory ... in essence, what you've
- done is told your users "forget quotas, if you need disk space, just write to
- /usr/spool/mail".
- --
- Serge J. Goldstein
-