Date: Mon, 20 Dec 2004 14:23:02 -0700 From: Brett Glass <brett@lariat.org> To: freebsd-security@freebsd.org Subject: chroot-ing users coming in via SSH and/or SFTP? Message-ID: <6.2.0.14.2.20041220142255.06260ca0@localhost>
next in thread | raw e-mail | index | archive | help
A client wants me to set up a mechanism whereby his customers can drop files securely into directories on his FreeBSD server; he also wants them to be able to retrieve files if needed. The server is already running OpenSSH, and he himself is using Windows clients (TeraTerm and WinSCP) to access it, so the logical thing to do seems to be to have his clients send and receive files via SFTP or SCP. The users depositing files on the server shouldn't be allowed to see what one another are doing or to grope around on the system, so it'd be a good idea to chroot them into home directories, as is commonly done with FTP. However, OpenSSH (or at least FreeBSD's version of it) doesn't seem to have a mechanism that allows users doing SSH, SCP, or SFTP to be chroot-ed into a specific directory. What is the most effective and elegant way to do this? I've seen some crude patches that allow you to put a /. in the home directory specified in /etc/passwd, but these are specific to versions of the "portable" OpenSSH and none of the diffs seem to match FreeBSD's files exactly. --Brett
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?6.2.0.14.2.20041220142255.06260ca0>