OpenSSH : SFTP only + Chroot2023/06/14 |
Configure SFTP only + Chroot.
Some users who are applied this setting can access only with SFTP and also applied chroot directory. |
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[1] | For example, Set [/home] as the Chroot directory. |
# apply to a user [bookworm] for SFTP only as an example root@dlp:~# usermod -aG sftp_users bookworm
root@dlp:~#
vi /etc/ssh/sshd_config # line 115 : comment out and add a line like below # Subsystem sftp /usr/lib/openssh/sftp-serverSubsystem sftp internal-sftp
# add to the end Match Group sftp_users X11Forwarding no AllowTcpForwarding no ChrootDirectory /home ForceCommand internal-sftp systemctl restart ssh
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[2] | Try to access with a user and verify the settings. |
bookworm@node01:~$ ssh bookworm@dlp.srv.world
bookworm@dlp.srv.world's password:
This service allows sftp connections only.
Connection to dlp.srv.world closed. # denied as settings
bookworm@node01:~$ sftp bookworm@dlp.srv.world bookworm@dlp.srv.world's password: Connected to dlp.srv.world. sftp> |
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