Re: New!!!: Base-passwd 2.0
On Wed, 22 Jan 1997, Philippe Troin wrote:
>
> On Wed, 22 Jan 1997 21:49:31 +0200 Lars Wirzenius (liw@iki.fi) wrote:
>
> > Philippe Troin:
> > > Is there a debian standard way of [ locking /etc/passwd and friends ] ?
>
> On Wed, 22 Jan 1997 21:49:31 +0200 Lars Wirzenius (liw@iki.fi) wrote:
> > I don't think so, at the moment. It should be doable, however. We
> > have a locking policy for mailboxes. I'm sure we can have one for
> > /etc/passwd.
>
> Let's do it the same way that we lock the mailboxes then ?
> If I remember right, it consists in:
> 1) Create a dummy file in the same directory
> 2) Hardlink it to the local file (/etc/passwd.lock and /etc/group.lock, possibly /etc/shadow.lock)
> 3) Change your stuff...
> 4) Unlink the tmpfile and the dummy file.
>
> And the only other known program to change the passwords is adduser, right ?
> So enabling passwd and al locking should be straightforward...
> About reading, if one reads a corrupted entry while the file is changing, this shouldn't cause too much hassle (bad login)...
I believe that FHS reguires lock files to go into /var/lock.
Is there any reason not to follow their lead?
--- Jean Pierre
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