[gelöst] Shared Directories FTP-Server

snaewe schrieb:

Ich nehme mal an, der PureFTPd läuft in einer 'chroot' Umgebung.
Das, was er als '/' sieht ist also eigentlich '/srv/ftp'.
Ich denke, da wirst du mit Symlinks nicht weit kommen.

Stefan

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* Shared directories and chroot.

-> I have a directory, say /var/incoming, that I want to be shared by every
user. But I want my users to be chrooted. So /var/incoming should be visible
in 'joe' and 'john' accounts, but those are chrooted. So, how to have the
content of /var/incoming visible in these accounts?

Making a symbolic link won't work, because when you are chrooted, it means
that everything outside a base directory (your user's home directory) won't
be reachable, even though a symbolic link.

But all modern operating systems can mount local directories to several
locations. To have an exact duplicate of your /var/incoming directory
available in /home/john/incoming and /home/joe/incoming, use one of these
commands:

* Linux : mount --bind /var/incoming /home/john/incoming
mount --bind /var/incoming /home/joe/incoming

* Solaris : mount -F lofs /var/incoming /home/john/incoming
mount -F lofs /var/incoming /home/joe/incoming

* BSD : mount_null /var/incoming /home/john/incoming
mount_null /var/incoming /home/joe/incoming

Warning: FreeBSD's mount_null is broken and causes kernel crashes with all
FreeBSD systems prior to release 4.4 .

Another alternative is to compile Pure-FTPd with --with-virtualchroot as a
./configure option. With virtual chroot, symbolic links pointing outside a
chroot jail *are* followed.

Binary packages are compiled with this feature turned on.

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