I am trying to create a new secondary user that has access to SFTP files and SSH access to a specific directory.
I have the SFTP work, but when I try to login via SSH, I get the following error: Write failed: Broken pipe
The root user uses a public/private key, but I want the secondary user to use a password.
Here is what I have so far:
useradd test
passwd test
usermod -G www-data test
usermod -d /usr/share/nginx/html test
chown test:www-data /usr/share/nginx/html
As for additions to my sshd_config:
AllowUsers test
Match User test
ChrootDirectory /usr/share/nginx/html
PasswordAuthentication yes
X11Forwarding no
AllowTcpForwarding no
ForceCommand internal-sftp
All I have left todo is to get the test user to be able access the CLI in their home directory to run composer and artisan commands.
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I executed
useradd test
passwd test
usermod -G www-data test
usermod -d /usr/share/nginx/html test
chown test:www-data /usr/share/nginx/html/*
sshd_config:
AllowUsers test
Match User test
ChrootDirectory /usr/share/nginx/html
PasswordAuthentication yes
X11Forwarding no
AllowTcpForwarding no
sudo systemctl restart ssh
And the new user still can navigate to any folder outside /usr/share/nginx/html
By adding ForceCommand internal-sftp you block any access the user would have to any form of CLI, shell or terminal session. In fact, you’ll even ban SCP usage in favor of only sFTP.
If your run sftp test@xxx.xxx.xxx.xxx you will currently be able to list files and navigate the chroot jail and depending on permissions, read or read and write.
Does your user need a direct she’ll or is sFTP sufficient?
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