Re: [gentoo-user] mail in $HOME/.maildir, why ??? (cont.)

2005-08-30 Thread Jarry

Q: How can I prohibit users from changing mail-path in their
$HOME/.procmailrc back to $HOME/.maildir?


Dont know if you can stop that.


Strange. It seems to me to be a sort of security problem,
if someone can so easily circumvent userquota settings...


After logging there I get either message No mail, or
You have new mail. But I do not get any similar message on my
Gentoo box. Why? Can I somehow activate it?


Not with maildirs you dont.


It seems to me maildir does not have only advantages  :-(

Jarry

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Re: [gentoo-user] mail in $HOME/.maildir, why ??? (cont.)

2005-08-30 Thread A. Khattri
On Tue, 30 Aug 2005, Jarry wrote:

 Strange. It seems to me to be a sort of security problem,
 if someone can so easily circumvent userquota settings...

Not if you have quotas on /home

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Re: [gentoo-user] mail in $HOME/.maildir, why ??? (cont.)

2005-08-30 Thread Jarry

A. Khattri wrote:


Strange. It seems to me to be a sort of security problem,
if someone can so easily circumvent userquota settings...


Not if you have quotas on /home


Yes I do have quotas both on /home and /var. But if user can redirect
its mails from /var (where userquota is 100MB, mail is supposed to be
there) to /home (where userquota is 5GB and where user files are
supposed to be, but not mails), then it really is a security problem
for me...

Jarry
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Re: [gentoo-user] mail in $HOME/.maildir, why ??? (cont.)

2005-08-30 Thread Ron Bickers
On Mon August 29 2005 04:19 pm, A. Khattri wrote:

  And last question: I have access to one Debian box (which uses mbox
  format). After logging there I get either message No mail, or
  You have new mail. But I do not get any similar message on my
  Gentoo box. Why? Can I somehow activate it?

 Not with maildirs you dont.

I'm not so sure this is true.  I've been using Maildirs for 8 years and I get 
these messages on my Fedora Core machines, but I haven't bothered seeing why 
I don't on Gentoo.

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Re: [gentoo-user] mail in $HOME/.maildir, why ??? (cont.)

2005-08-30 Thread Walter Dnes
On Mon, Aug 29, 2005 at 08:42:38PM +0200, Jarry wrote

  If you have a problem with users having access to certain email, then
don't let them access that email at all.  That is the only way.

 Neil Bothwick wrote:
 
 Q: How can I prohibit users from changing mail-path in their
 $HOME/.procmailrc back to $HOME/.maildir? That way they could
 circumvent my /var userqouta settings (100MB) and use /home
 settings (5GB)...

  I believe that procmail is paranoid about any .procmailrc not having
correct ownership and permissions.  So if you chown it to root,
procmail may ignore it when processing email for the user.  You might
want to look at setting up .procmailrc properly in the user's name,
and then chattr +i on it.  That should lock it down.

  Having said that... what's to prevent a user from saving copies of his
email to a directory in his own account?  I repeat what I said at the
start of this message... if you have a problem with users having access
to certain email, then don't let them access that email at all.  That is
the only way.

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Walter Dnes [EMAIL PROTECTED]
My musings on technology and security at http://tech_sec.blog.ca
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Re: [gentoo-user] mail in $HOME/.maildir, why ??? (cont.)

2005-08-29 Thread Jarry

Neil Bothwick wrote:


MAILDIR=/var/spool/mail
DEFAULT=$MAILDIR/$LOGNAME/
at the top of /etc/procmailrc


OK, I tried. My /etc/procmailrc is:
DEFAULT=/var/spool/mail/$LOGNAME/ # that is the same

Mail is still in maildir format but at least in /var/spool/mail.

Q: How can I prohibit users from changing mail-path in their
$HOME/.procmailrc back to $HOME/.maildir? That way they could
circumvent my /var userqouta settings (100MB) and use /home
settings (5GB)...

One more problem: I can not force elm to read it. If I start elm
with option -f /var/spool/mail/$LOGNAME, it complains that it is
directory. When I try elm -f /var/spool/mail/$LOGNAME/new, the same.
It seems to me, that elm simply can not read maildir format at all.
I tried another command-line mailer, mail: the same problem...
Which command-line mail-reader supports maildir format?

And last question: I have access to one Debian box (which uses mbox
format). After logging there I get either message No mail, or
You have new mail. But I do not get any similar message on my
Gentoo box. Why? Can I somehow activate it?

Jarry
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Re: [gentoo-user] mail in $HOME/.maildir, why ??? (cont.)

2005-08-29 Thread A. Khattri
On Mon, 29 Aug 2005, Jarry wrote:

 Q: How can I prohibit users from changing mail-path in their
 $HOME/.procmailrc back to $HOME/.maildir? That way they could
 circumvent my /var userqouta settings (100MB) and use /home
 settings (5GB)...

Dont know if you can stop that.

 One more problem: I can not force elm to read it. If I start elm
 with option -f /var/spool/mail/$LOGNAME, it complains that it is
 directory. When I try elm -f /var/spool/mail/$LOGNAME/new, the same.
 It seems to me, that elm simply can not read maildir format at all.
 I tried another command-line mailer, mail: the same problem...
 Which command-line mail-reader supports maildir format?

Hey, welcome to the 21st century (noone use elm and mail anymore ;-)

You probably need to setup an IMAP server and then configure Pine and/or
mutt to use IMAP (mutt actually supports maildir but some people might
want to use Pine instead). I would remove elm entirely.

 And last question: I have access to one Debian box (which uses mbox
 format). After logging there I get either message No mail, or
 You have new mail. But I do not get any similar message on my
 Gentoo box. Why? Can I somehow activate it?

Not with maildirs you dont.


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Re: [gentoo-user] mail in $HOME/.maildir, why ??? (cont.)

2005-08-29 Thread Neil Bothwick
On Mon, 29 Aug 2005 20:42:38 +0200, Jarry wrote:

  MAILDIR=/var/spool/mail
  DEFAULT=$MAILDIR/$LOGNAME/
  at the top of /etc/procmailrc
 
 OK, I tried. My /etc/procmailrc is:
 DEFAULT=/var/spool/mail/$LOGNAME/ # that is the same
 
 Mail is still in maildir format but at least in /var/spool/mail.

Rhat's correct, as others have said, maildir has many benefits. If you
want delivery to a single file, remove the trailing slash.

 Q: How can I prohibit users from changing mail-path in their
 $HOME/.procmailrc back to $HOME/.maildir? That way they could
 circumvent my /var userqouta settings (100MB) and use /home
 settings (5GB)...

Set the ownership of all .maildir directories to root:root and chmod 700?
It wouldn't stop them changing it, but they'd soon change it back :)


-- 
Neil Bothwick

Joystick: (n.) a device essential for performing business tasks and
training exercises esp. favored by pilots, tank commanders, riverboat
  gamblers, and medieval warlords.


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Re: [gentoo-user] mail in $HOME/.maildir, why ??? (cont.)

2005-08-29 Thread Jean Magnan de Bornier
Le 29 août à 20:42:38 Jarry [EMAIL PROTECTED] écrit notamment:

| OK, I tried. My /etc/procmailrc is:
| DEFAULT=/var/spool/mail/$LOGNAME/ # that is the same

| Mail is still in maildir format but at least in /var/spool/mail.

 DEFAULT=/var/spool/mail/$LOGNAME (no slash at the end) should give you
 mbox format if you really like it (you might be the only one around here :-))

cheers,
-- 
  Jean Magnan de Bornier |Cours Victor Hugo
  e-mots: jean at bornier.net|13980 Alleins   France
  T 08 70 39 34 03   |P 06 09 17 35 87

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