FTP (vsftpd) can't see mounted SMB drives
 

Hello,

On Almalinux 8 if I mount a drive (from another server) and if a client connects to Almalinux via FTP (vsftpd) the mounted folder not visible in FTP client.
I checked the permissions and I tried with root user too.

This is how I mount the SMB drive:
//192.168.1.2/share-folder /root/remote-folder cifs username=remoteuser,password=12345678,iocharset=utf8,file_mode=0777,dir_mode=0777

What is missed?

Thank You

Only root has permissions to access files within its home directory i.e. /root. root should never be able to login via ftp. If a directory is outside of the local_root directory you would need to use the cd command to change directories.

But it depends on how you configured vsftpd? Are you using chroot_local_users? How did you configure local_root?

I allowed root to use the FTP (because I thought I have a permission problem), but root can't see mounted folder too via FTP so if I login via ssh there are the test files and the mounted folder too in root's home and I can cd into it, if I login into server with root via FTP I can see only the test files, but not the mounted folder, and if I unmount the folder, I can see the mountpoint folder via FTP, if I remount the folder is goes away again.

I have seen that kind of thing work, but not using the software available today.
In general you cannot reshare a remote share with any success: if it ever works it will not be dependable.
Likewise, running a service on one box to provide access to data on another box is iffy. Can you not run an vsftp service on the box that actually owns that storage and data? THAT would work and be more dependable.

It does not happen me but it might depend on how vsftp configured? I don't see anything specific to a remote share in vsftp.conf. There is a deny_file, hide_files directives and chroot_jail but I have not tried anything to see if that would happen. Users should not be allowed to access /root anyway.