Why Vsftp Can Do It, But Openssh Sftp Cannot ? (chroot)

Is there an sftp package that can be used which is more flexible then the ssh internal ftp server. I have been tasked with providing an /srv/ftp/ directory which includes

mount -bind other_directory1 /srv/ftp/d1
mount -bind other_driectory2 /srv/ftp/q2

...etc

Since sftp via ssh demands that all directories be owned by root I have a problem. The 'other directories' are owned by different sets of groups. We have engineers who will have carte blanche access. I have another group 'manufacturing' who will need to be chrooted to /var/ftp/. They will need to see directories underneath /var/ftp/ and nothing else. We don't want them to be able to cd to any other part of the system. Manufacturing does not have any account on the machine. My last group sales has an account on the server. I have been able to chroot them to there home folder where they also have the same mount --binded directories. Management would like sales to be able to ftp as well as sftp with read only access to the sub directories under their home directory. It is allowable to have them sftp to /srv/ftp/ and ftp to /home/sale/. I would suppose that this may mean that I use a different tool to implement sftp rather then use ssh. Here are my setup files for ssh

Port 22
Protocol 2
HostKey /etc/ssh/ssh_host_rsa_key
HostKey /etc/ssh/ssh_host_dsa_key
HostKey /etc/ssh/ssh_host_ecdsa_key
UsePrivilegeSeparation yes
KeyRegenerationInterval 3600
ServerKeyBits 1024
SyslogFacility AUTH
LogLevel INFO
LoginGraceTime 120
PermitRootLogin yes
StrictModes yes
UseDNS no
RSAAuthentication yes
PubkeyAuthentication yes
IgnoreRhosts yes
RhostsRSAAuthentication no
HostbasedAuthentication no
PermitEmptyPasswords no
ChallengeResponseAuthentication no
GSSAPIAuthentication yes
X11Forwarding yes
X11DisplayOffset 10
PrintMotd no
PrintLastLog yes
TCPKeepAlive yes
UseLogin yes
Banner /etc/issue.net
AcceptEnv LANG LC_*
Subsystem sftp /usr/lib/openssh/sftp-server
UsePAM no

Match group ftpgroup
ChrootDirectory /srv/ftp
X11Forwarding no
AllowTcpForwarding no
ForceCommand /usr/lib/openssh/sftp-server
PasswordAuthentication yes

I have set up a SFTP which I can connect to, go to the right directory and read/write files to.

The full path is home/sftpuser/SFTP/Customer
The user "sftpuser" I am connecting with is in the group "ftpusers" which has read/write access.

That works fine.

Here is my sshd_config:
Code:

Match Group ftpusers ChrootDirectory /home/%u/
 ForceCommand internal-sftp
  AllowAgentForwarding no
  AllowTcpForwarding no
  X11Forwarding no

However, I made a samba share of the folder Customer, when I go to the IP adress on a Windows machine "\\10.0.0.1\" I can see the folder Customer, when entering it requests user/pass and afterwards gives an error: you have not the right permissions.

In Webmin:
Customer /home/sftpuser/SFTP/Customer Read/write to everyone

My smb.conf:
Code:

[global]
    syslog = 0
    log file = /var/log/samba/log.%m
    read raw = no
    write raw = no
    passdb backend = tdbsam
    workgroup = DOMAIN
    usershare allow guests = yes
    socket options = TCP_NODELAY
    pam password change = yes
    passwd program = /usr/bin/passwd %u
    unix password sync = yes
    obey pam restrictions = yes
    passwd chat = *Enter\snew\s*\spassword:* %n\n *Retype\snew\s*\spassword:* %n\n *password\supdated\ssuccessfully* .
    server role = standalone server
    server string = %h server (Samba, Ubuntu)
    max log size = 1000
    map to guest = bad user
    panic action = /usr/share/samba/panic-action %d
    dns proxy = no



[Customer]
    force create mode = 755
    browsable = yes
    public = yes
    path = /home/sftpuser/SFTP/Customer
    force directory mode = 755
    writeable = yes
    valid users = @ftpusers
    force group = ftpusers
    write list = @ftpusers

I have been struggling for 3 days and am totally out of ideas.

LS -L for the folder:
Code:

total 4
drwxrwx---+ 2 sftpuser ftpusers 4096 Apr  9 11:35 Customer

Dear Members,

I am trying to configure sftp on my Server (Redhat). But I am facing following issue.

Link used: https://www.linode.com/docs/tools-re...ian-and-ubuntu

These are the parameters added to /etc/ssh/sshd_config file :

Quote:
Match group filetransfer
ChrootDirectory %h
X11Forwarding no
AllowTcpForwarding no
ForceCommand internal-sftp
Permission home Directories are as follows :

Quote:
ls -ld /home/test1/
drwxr-xr-x 7 root root 4096 May 14 09:49 /home/test1/

ls -l /home/test1/
total 12
drwxr-xr-x 2 root root 4096 May 14 09:49 docs
drwxr-xr-x 2 root root 4096 May 13 11:43 nitish
drwxr-xr-x 2 root root 4096 May 14 09:49 public_html

Debug Command : sftp -vvv test1@Ipaddress

Code:

debug1: Next authentication method: password
test1@IP-address's password:
debug3: packet_send2: adding 64 (len 53 padlen 11 extra_pad 64)
debug2: we sent a password packet, wait for reply
debug3: Wrote 144 bytes for a total of 1421
debug1: Authentication succeeded (password).
debug2: fd 4 setting O_NONBLOCK
debug3: fd 5 is O_NONBLOCK
debug1: channel 0: new [client-session]
debug3: ssh_session2_open: channel_new: 0
debug2: channel 0: send open
debug1: Requesting no-more-sessions@openssh.com
debug1: Entering interactive session.
debug3: Wrote 128 bytes for a total of 1549
debug3: Wrote -1 bytes for a total of 1549
Write failed: Broken pipe
Couldn't read packet: Connection reset by peer

I need the user can't access/see the other directories other than it's own directory

Waiting for your response.

Thank you

Redhat-Keeda

Hi. When I ran #useradd -m -s /bin/bash -G áudio,lp,video, wheel,scanner -U user
#passwd user

I forgot to have the /home mounted (shame on me)

so now there is not a /home/user (directory) so user cannot start the X

how can I fix it?

thank you!

Hi everyone,

I am currently a user of crouton under chromeOS. It worked "pretty" well for about two months but does not work anymore. When I open it, linux start normally but suddenly stop and give me this message:

Quote:
The following installation problem was detected
while trying to start KDE:

No write access to $HOME directory (/home/paul).

KDE is unable to start.
I already try this Code:

sudo chown -R group:user /home/user

But I can not remember group and user name.

Thanks a lot

I have created a new user with "useradd" than changed the password with "passwd" (logged in as an administrator). After that I tried to login as the new user but couldn't. Error message was: "call to lnusertemp failed (temporary directories full?). Check your installation".

I currently use Debian 8.

I checked the home directory and couldn't find a new created folder for the new user (wasn't supposed to be done automatically by useradd?) and I checked the etc/password and there was the new user name inside it though.

What should I do? I really need to have more than one user on this computer...

First time post so I hope it's not too long winded!

I've just installed Centos v7.1 and created an additional user.

First putty session I logged in with root and got the public fingerprint message and clicked Yes to accept.

However I noted when I logged in with the user other I did not get the prompt and my home directory didn't have a .ssh directory.

OK, so I created a .ssh (chmod 700) directory within /etc/skel and created a new user. Logged in with that account and still no prompt, although I do now have a .ssh directory generated.

I've tried deleting the known_hosts files in the root's .ssh directory and restarting the sshd daemon but it's not working.

How do I get it to prompt with original public key again?

Thanks for reading.

hi-

Today I switched my linux username and changed to /home/newname. I am doing this because it is not secure to broadcast your username to the world.

At this link:

http://askubuntu.com/questions/34074...ge-my-username

I am wondering if there is a way to do it a little better for me.

Quote:
You can either keep a symlink for backward compatibility, e g ln -s /home/newname /home/oldname or you can change the file contents with sed -i.bak 's/*oldname*/*newname*/g' *list of files* It creates a backup for each file with a .bak extension.
I tried to do a symlink.

It is not working exactly the way I had hoped. I may not understand it.

When I do the command ls -l I had to make an alias command with awk to parse out the user when i display it. That isn't a big deal but I noticed the oldname and newname are in the printout before filtering it with awk.

Also, my old home directory (the one that matches my /home/oldname is not deleted).

I can log in and the desktop looks fine. I indeed have a new /home/newname.

At one point can I delete the /home/oldname.

Is it okay that ls -l is picking up both usernames (new and old) in separate columns?

I wanted to bounce this off a more experienced user to see if there are some minor adjustments I can do to improve not having 2 home directories and if it is okay for ls -l to display both the old and new user name.

thanks!

mtdew3q

I can't believe I wrote a looong message and it logged me out when I tried to submit it.

So anyway, in short lines:

- I have a network of sites where all sites share same "images" folder
- I have created /home/_images/entities and symlinked it from all websites
- It works great with Apache, when I open /images/ on any of the sites I get list of images and can view them

The problem is suPHP which changes process ID of the PHP script to the file owner ID, so when I load site1.com, all scripts are executed as user1 (and files/folders created with those scripts belong to user1:user1). When I load site2.com, all scripts are executed as user2 (and files/folders created with those scripts belong to user2:user2). All these users do NOT belong to the same group, and I wouldn't like to change that as it is cPanel/WHM server so I'm afraid I'll screw something up if I change (primary?) group of all users.

Therefore I need to set it up in such way that all newly created folders and files under /home/_images/entities (owned by root) have read/write permissions for everyone.

Here's the command I used:

Code:

setfacl -Rdm o::rwx /home/_images/entities

To check it:
Code:

root@server1 [~]# getfacl /home/_images/entities/
getfacl: Removing leading '/' from absolute path names
# file: home/_images/entities/
# owner: root
# group: root
user::rwx
group::rwx
other::rwx
default:user::rwx
default:group::rwx
default:other::rwx

This looks fine, however when I try upload an image via site1.com it looks like this:

Code:

root@server1 [/home/_images/entities]# ls -l
total 24
drwxrwxrwx+ 5 root    root    4096 Jan 14 06:25 ./
drwxrwxrwx  5 root    root    4096 Jan 12 13:08 ../
drwxrwxr-x+ 3 user1   user1   4096 Jan 14 06:25 1/

And in folder "1" is the image (and thumbs folder):

Code:

root@server1 [/home/_images/entities/1]# ls -l
total 236
drwxrwxr-x+ 3 user1   user1     4096 Jan 14 06:25 ./
drwxrwxrwx+ 5 root    root      4096 Jan 14 06:25 ../
-rw-rw-rw-  1 user1   user1   225569 Jan 14 06:25 689048f221ab7c556f4d482a9d92b2d6.jpg
drwxrwxr-x+ 2 user1   user1   4096 Jan 14 06:25 thumbs/

My questions:

1) Why newly created folders do not have "write" permissions for everyone else [not user and/or group]? If I upload first image from site1.com, then I can't upload other images from any other site, while all sites can display them.

2) What is the + at the end of permissions list? (drwxrwxr-x+)

3) Why newly created files have only "rw" permissions for user, group AND everyone else, and not execute permissions? I don't actually need execute flag set here, but from my command you can see I've set "o::rwx" so it should be there (or not?)

Actually the real problem is #1 - other users can't write to this folder so users can't upload images from other sites nor other sites can create (missing) thumbnails.

In my RHEL 6 sever space issue so i am mounted new user
home directory to my nas storage with cifs rw permission

but when user using ftp getting error 550 create directory operation failed

vsftpd user home directory mounted with cifs rw permission but getting error 550 create directory operation failed