04-01-2020
VSFTPD sees old mount --bind
Hi guys,
Our company sells a product that has two servers than run in a pair--for the part I explain below the two systems run independently.
On both servers I did the following. I used the mount --bind command. to allow the FTP user to see the contents of another directory. I found an easier to way to accomplish what I wanted. Removing the mount -- bind, rysnc was used in the crontab to constantly mirror the two directories. My manger did not like that. He said I should use the user on the system to access the directory that has the files the client wants. Rysnc's were removed from the crontabs. On the second server everything works great using FTP and SFTP--client can get into the correct home directory and sees the right files.
However on the first server the client is getting into what is the /var/ftp directory. WinSCP lists the home directory properly in the header but the listing is incorrect--it shows the files of /var/ftp. However when I check the home directory on the first sever the directory listing is correct. Home directory is correct, shell is set to /bin/bash in the /etc/passwd file. Permissions are the same on both (Before they were different but I fixed that but the problem stayed.)
I am stumped. Any ideas what I should be looking for? I did not chroot anything either and like I said, the second server works fine. What would make winscp list the contents of /var/ftp?
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FTPFS(4) Kernel Interfaces Manual FTPFS(4)
NAME
ftpfs - file transfer protocol (FTP) file system
SYNOPSIS
ftpfs [ -/dq ] [ -m mountpoint ] [ -a password ] system
DESCRIPTION
Ftpfs dials the TCP file transfer protocol (FTP) port, 21, on system and mounts itself (see bind(2)) on mountpoint (default /n/ftp) to pro-
vide access to files on the remote machine. If required by the remote machine, ftpfs will prompt for a user name and password. The user
names ftp and anonymous conventionally offer guest/read-only access to machines. Anonymous FTP may be called without user interaction by
using the -a option and specifying the password.
By default the file seen at the mount point is the user's remote home directory. The option -/ forces the mount point to correspond to the
remote root.
To avoid seeing startup messages from the server use option -q. To see all messages from the server use option -d.
To terminate the connection, unmount (see bind(1)) the mount point.
EXAMPLE
You want anonymous FTP access to the system export.lcs.mit.edu. The first import(4) command is only necessary if your machine does not
have access to the desired system, but another, called gateway in this example, does.
import gateway /net
ftpfs -a yourname@yourmachine export.lcs.mit.edu
SOURCE
/sys/src/cmd/ftpfs
SEE ALSO
bind(2)
BUGS
Symbolic links on remote Unix systems will always have mode 0777 and a length of 8.
After connecting to a TOPS-20 system, the mount point will contain only one directory, usually /n/ftp/PS:<ANONYMOUS>. However, walking to
any valid directory on that machine will succeed and cause that directory entry to appear under the mount point.
Ftpfs caches files and directories. A directory will fall from the cache after 5 quiescent minutes or if the local user changes the direc-
tory by writing or removing a file. Otherwise, remote changes to the directory that occur after the directory has been cached might not be
immediately visible.
There is no way to issue the appropriate commands to handle special synthetic FTP file types such as directories that automatically return
a tar of their contents.
FTPFS(4)