SFTP only + Chroot2015/11/28

	Configure SFTP only + Chroot. Some users who are applied this settings can access only with SFTP and access to the permitted directories.
[1]	For example, Set /home as the Chroot directory.

# create a group for SFTP

dlp:~ #

groupadd sftp_users

# for example, apply to a user "suse" for SFTP only

dlp:~ #

usermod -G sftp_users suse

dlp:~ #

vi /etc/ssh/sshd_config

# line 135: comment out and add a line like below

Subsystem sftp /usr/lib64/ssh/sftp-server

Subsystem sftp internal-sftp

# add follows to the end

Match Group sftp_users
X11Forwarding no
AllowTcpForwarding no
ChrootDirectory /home
ForceCommand internal-sftp

dlp:~ #

/etc/init.d/sshd restart

[2]	Try to access with a user to verify settings.

suse@rx7:~>

ssh suse@10.0.0.30

password:
This service allows sftp connections only.
Connection to 10.0.0.30 closed.

# denied normally

suse@rx7:~>

sftp suse@10.0.0.30

Connecting to 10.0.0.30...
password:
sftp>

ls -l

drwxr-xr-x    7 suse     100           169 Nov 21 22:35 suse
drwxr-xr-x    7 cent     100           169 Nov 21 22:35 cent

sftp>

pwd

Remote working directory: /
sftp>

exit

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