OpenSSH : SFTP only + Chroot2024/10/31 |
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. |
[root@dlp ~]#
vi /etc/ssh/sshd_config # line 123 : comment out and add a line #Subsystem sftp /usr/libexec/openssh/sftp-server Subsystem sftp internal-sftp # add to last line
Match Group sftp_users
X11Forwarding no AllowTcpForwarding no ChrootDirectory /home ForceCommand internal-sftp systemctl restart sshd |
[2] | Verify working with a user set SFTP only setting. |
[fedora@node01 ~]$ ssh dlp.srv.world
Enter passphrase for key '/home/fedora/.ssh/id_ed25519':
This service allows sftp connections only.
Connection to dlp.srv.world closed. # denied normally
[fedora@node01 ~]$ sftp dlp.srv.world Enter passphrase for key '/home/fedora/.ssh/id_ed25519': Connected to dlp.srv.world. sftp> ls -l drwx------ ? 1000 1000 144 Oct 31 11:16 fedora drwx------ ? 1001 1002 83 Oct 31 10:24 redhat sftp> pwd Remote working directory: / sftp> exit |
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