Solved

ftp configuration

Posted on 2011-02-28
9
309 Views
Last Modified: 2012-05-11
Hello experts,
             I have a doubt regarding ftp. I installed and setup vsftpd on linux. I want to configure such a way that have 3 users A,B and C. They have home directories. Have a folder in / named A and inside it two folders B and C. A can ftp access to A,B and C. But B and C have access to their own B and C folder only. How to setup ftp access like this. Thanks in advance.
0
Comment
Question by:jacobbbc
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
9 Comments
 
LVL 3

Expert Comment

by:Gpramodkumar
ID: 34996133
If you are settingup the ftp share in windows then it is similar as providing sharing and security permissions for A on A,B,C folders and B 's access to folder B and C's access to folder C.
0
 

Author Comment

by:jacobbbc
ID: 34996212
@Gpramodkumar: my os is linux....
0
 
LVL 35

Expert Comment

by:torimar
ID: 34996423
The usual setup is to chroot ftp users to their home directories. For security reasons, this is highly recommended.

If you want users to be able to access files somewhere else in the directory tree, the trick I know of is to mount these folders with the '-bind' command. The trick is described here:
http://roglev.info/?p=41
http://www.ducea.com/2006/07/27/allowing-ftp-access-to-files-outside-the-home-directory-chroot/

In your case, you would have to create 3 different mountpoints, one for each ftp user, and you would also have to add them to the /etc/fstab file.
0
Ransomware-A Revenue Bonanza for Service Providers

Ransomware – malware that gets on your customers’ computers, encrypts their data, and extorts a hefty ransom for the decryption keys – is a surging new threat.  The purpose of this eBook is to educate the reader about ransomware attacks.

 
LVL 2

Accepted Solution

by:
maxalarie earned 500 total points
ID: 35003932
I guess you could create  your direcotries  and chamge the home folders of A,B and C.

/A would be the home folder of A
/A/B home folder of user B
/A/C home folder of user C
that way, A  have an access to to B and C stuff.

Open vsftpd configuration file - /etc/vsftpd/vsftpd.conf
check the option : chroot_local_user=YES


0
 

Author Comment

by:jacobbbc
ID: 35003992
@torimar: Is it not possible without mounting?
0
 

Author Comment

by:jacobbbc
ID: 35003997
@maxalarie: The folder A is not user A's home folder.
0
 
LVL 35

Expert Comment

by:torimar
ID: 35006483
>> "@torimar: Is it not possible without mounting?"

There are three conceivable ways of dealing with this issue:

1. Not to chroot your users and give them access to the complete filesystem:-> a security disaster, impossible.
2. To set the user's home folders to be identical with their FTP root folders, as suggested by maxalarie above:-> not practical for you.
3. The mount/bind trick.

I personally do not know of any other way, and an online research did not yield one either.
Have you tested the mount/bind trick? It means just typing one line in the terminal. If you find it working, it means only three more lines in the fstab. That's less work to do than in many other configuration tasks on Linux...
0
 
LVL 2

Expert Comment

by:ind_selva
ID: 35015324
change user's home directory.
#usermod -d /A a
#usermod -d /A/B b
#usermod -d /A/C c
0
 
LVL 6

Expert Comment

by:mohansahu
ID: 35016084
Hi,

For changing the user home directory in to a specified path ,need to modify in vsftpd.conf file & add the below line to end of  vsftpd.conf file.

pam_service_name=vsftpd
userlist_enable=YES
tcp_wrappers=YES
local_root=/named
anon_root=/named


Cheers,
MS


~

0

Featured Post

Back Up Your Microsoft Windows Server®

Back up all your Microsoft Windows Server – on-premises, in remote locations, in private and hybrid clouds. Your entire Windows Server will be backed up in one easy step with patented, block-level disk imaging. We achieve RTOs (recovery time objectives) as low as 15 seconds.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

This is the error message I got (CODE) Error caused by incompatible libmp3lame 3.98-2 with ffmpeg I've googled this error message and found out sometimes it attaches this note "can be treated with downgrade libmp3lame to version 3.97 or 3.98" …
Network Interface Card (NIC) bonding, also known as link aggregation, NIC teaming and trunking, is an important concept to understand and implement in any environment where high availability is of concern. Using this feature, a server administrator …
Learn several ways to interact with files and get file information from the bash shell. ls lists the contents of a directory: Using the -a flag displays hidden files: Using the -l flag formats the output in a long list: The file command gives us mor…
How to Install VMware Tools in Red Hat Enterprise Linux 6.4 (RHEL 6.4) Step-by-Step Tutorial

733 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question