10 Oct
2014
10 Oct
'14
10:01 p.m.
On Fri, 10 Oct 2014 15:51:29 -0400
Ivica Ico Bukvic <ico(a)vt.edu> wrote:
So, what I did so far is change /etc/ssh/sshd_config
so that sftp
chroots said user's home dir, and prevents access via ssh. I also
created a sftponly group and added the user to it. I adjusted home dir
permissions and created a subfolder "submissions" where users can submit
their projects. Finally, I added umask to strip permissions from
uploaded files.
So, the /etc/ssh/sshd_config has the following entry
Match Group sftponly
ChrootDirectory /home/%u
ForceCommand internal-sftp -u 0222
X11Forwarding no
AllowTcpForwarding no
What's your subsystem line look like? You can force the umask there with
the -u directive. Example:
Subsystem sftp /usr/libexec/openssh/sftp-server -u 0002
If your sftp-server does not support -u then you can get the same effect
with this:
Subsystem sftp /bin/sh -c 'umask 0002; /usr/lib/openssh/sftp-server'
--
======================================================================
Joe Hartley - UNIX/network Consultant - jh(a)brainiac.com
Without deviation from the norm, "progress" is not possible. - FZappa