Oops. Sorry Mark. I forgot that you said sftp, which is part of OpenSSH.
I'm using vsftp, which does not require a login shell. Probably why it's
considered "very secure". ;) I expect that if vsftp is in a debian repo,
you could use that instead of sftp. vsftpd is stock in the RHEL repos.
On 12/29/2011 08:04 AM, Mark Phillips wrote:
> Eric,
>
> The Debian equivalent to /sbin/nologin appears to be /bin/false. When I
> tried that, I could not sftp or ssh or gain access to the machine in
> anyway. I am not sure if there is another Debian shell that allows sftp
> but not ssh.
>
> Thanks!
>
> Mark
>
> On Wed, Dec 28, 2011 at 9:54 PM, Eric Shubert <ejs@shubes.net
> <mailto:ejs@shubes.net>> wrote:
>
> That should be ok.
>
> Be sure you have your ftp server configured such that they cannot
> access folders above/across their home folder. File permissions may
> handle this, but probably will not (many things are world readable).
>
> Also, be sure that they cannot login to a command prompt by setting
> their login shell to /sbin/nologin (might vary with distro). This is
> commonly done for service accounts (apache, etc).
>
>
> On 12/28/2011 03:38 PM, Mark Phillips wrote:
>
> Thanks to everyone for their suggestions. Based on some constraints,
> your advice, some googling, I arrived at this set-up, but I am
> not sure
> how secure it is.
>
> 1. The web creation software (iWeb on a Mac) only supports ftp
> and sftp
> to upload a site.
> 2. iWeb does not support the use of "versions" for the web pages. By
> that I mean iWeb is strictly one way - create a site and publish
> it. It
> cannot import an iWeb site, it has to start at the beginning.
> One can
> create a site and publish it, then edit the site, and publish
> again, but
> it cannot import or use a previous version of the site as a starting
> point. (I mention this because Eric suggested using git, which
> sounded
> like a great idea, but alas
>
> I have this setup, but I could use some advice on how to make it
> more
> secure....
>
> 1. User account fred
> 2. fred's home is /var/www/domain/fred
> 3. /var/www/domain/fred has owner:group fred:fred
> 4. Document root is /var/www/domain/fred
>
> Thanks,
>
> Mark
>
> On Wed, Dec 28, 2011 at 10:26 AM, Eric Shubert <ejs@shubes.net
> <mailto:ejs@shubes.net>
> <mailto:ejs@shubes.net <mailto:ejs@shubes.net>>> wrote:
>
> On 12/27/2011 10:46 PM, Mark Phillips wrote:
>
> I need to give a user access to my web server via sftp
> to upload web
> site changes. What is the best way to do this? I have
> several other
> sites on the same server, so I want to prevent them or
> anyone
> else who
> gains access to their account from being able to make
> changes to
> those
> sites or other parts of the server.
>
> Thanks,
>
> Mark
>
>
> I use vsftp, which can be configured to allow users access
> only to
> their web site's tree. sftp might be able to do the same.
>
> Then, create their user such that their home directory is
> their web
> site's directory, and they cannot log in to the system (only
> vsftp)
> with an /etc/passwd entry like this:
>
> vsftpuser:x:511:511::/var/____vhosts/domain.com/docs:/sbin/____nologin <http://domain.com/docs:/sbin/__nologin>
> <http://domain.com/docs:/sbin/__nologin
> <http://domain.com/docs:/sbin/nologin>>
>
>
> Files in their web site are owned by their user, with read
> permissions for 'other' (o+r), which allows apache (or nginx) to
> read them.
>
> --
> -Eric 'shubes'
>
>
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> --
> -Eric 'shubes'
>
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--
-Eric 'shubes'
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