You can restrict their access to files in UNIX by using UNIX file access restrictions.
Create a 'shared' group and put user1 and user2 in it, but not user3. Then change the ownership of the directory, and restrict file access from other users, but allow the group.
That way, people in the 'shared' group can write to it, or the folder's own owner, but not anyone else.
As for how to get to the files with FTP, the obvious way would be to change their home directories, but if they use shell logins too, that's not so good... You can check if they belong to the 'shared' group and force them into that folder like this:
Hello,
I've been tasked with migrating users from one linux server to another new linux server. This is how I was thinking of doing it:
1.) Open up an NFS connection between the two servers, cp -Rp /home/ to the new server and then append the old /etc/group & /etc/passwd to the existing... (2 Replies)
hiya all,
I have Fedora core 3 installed - as a server - onto an old PC.
Root u/n and psw lets me in
However, all the other accounts no longer worked.
They use to work until yesterday...
I now get the error at the login screen:
"AUTHENTICATIONFAILED"
I hope this is a common... (12 Replies)
Hi, all.
Could some one help me please with one problem?
In one process (on aix) I should run some remote scripts on other server via rexec.
Some scripts should be run on server1 under useridA, and some scripts should be run on the same server under useridB.
I specified in .netrc... (10 Replies)
Guys,
Need your help coz my server runs in local time GMT +8, but when client use ftp and login, the resulting timestamp seen in each file is in UTC format. We need to set that the time should be the same as GMT +8 when in ftp session.
I am using RHEL 5.3.
root@]# ll
total 1740... (2 Replies)
I am running a fedora core 13 server and I am having trouble with sftp. My users can connect to the server using SSH both using public key and password authentication. For some reason they are not able to connect using sftp.
I'l not sure what's going on. I ran sshd in debug mode and here's... (6 Replies)
I am in the process of doing testing on a backup script that will backup everyones home directories. When I run a "who" I can see the users that are logged on. How can I send these users, let say an instant message other then email to alert them that I am about ready to kick of a test backup? I... (3 Replies)
I am new to shell scripting. I urgently need a script on a backup server that will ping the main server to check if the server is up. If the main server is down- the script should transfer the IP of the main server to the backup server. Once the main server is up again the backup server will... (7 Replies)
Hi friends could you please share me the script to create more users in one server except newusers, is there any option to change secondary group and how to print passwd and changing the age all these things how can i edit in newsers.. please help me (0 Replies)
Discussion started by: indiankrish
0 Replies
LEARN ABOUT BSD
chown
CHOWN(2) System Calls Manual CHOWN(2)NAME
chown - change owner and group of a file
SYNOPSIS
chown(path, owner, group)
char *path;
int owner, group;
fchown(fd, owner, group)
int fd, owner, group;
DESCRIPTION
The file that is named by path or referenced by fd has its owner and group changed as specified. Only the super-user may change the owner
of the file, because if users were able to give files away, they could defeat the file-space accounting procedures. The owner of the file
may change the group to a group of which he is a member.
On some systems, chown clears the set-user-id and set-group-id bits on the file to prevent accidental creation of set-user-id and set-
group-id programs.
Fchown is particularly useful when used in conjunction with the file locking primitives (see flock(2)).
One of the owner or group id's may be left unchanged by specifying it as -1.
If the final component of path is a symbolic link, the ownership and group of the symbolic link is changed, not the ownership and group of
the file or directory to which it points.
RETURN VALUE
Zero is returned if the operation was successful; -1 is returned if an error occurs, with a more specific error code being placed in the
global variable errno.
ERRORS
Chown will fail and the file will be unchanged if:
[ENOTDIR] A component of the path prefix is not a directory.
[EINVAL] The pathname contains a character with the high-order bit set.
[ENAMETOOLONG] A component of a pathname exceeded 255 characters, or an entire path name exceeded 1023 characters.
[ENOENT] The named file does not exist.
[EACCES] Search permission is denied for a component of the path prefix.
[ELOOP] Too many symbolic links were encountered in translating the pathname.
[EPERM] The effective user ID is not the super-user.
[EROFS] The named file resides on a read-only file system.
[EFAULT] Path points outside the process's allocated address space.
[EIO] An I/O error occurred while reading from or writing to the file system.
Fchown will fail if:
[EBADF] Fd does not refer to a valid descriptor.
[EINVAL] Fd refers to a socket, not a file.
[EPERM] The effective user ID is not the super-user.
[EROFS] The named file resides on a read-only file system.
[EIO] An I/O error occurred while reading from or writing to the file system.
SEE ALSO chown(8), chgrp(1), chmod(2), flock(2)4th Berkeley Distribution May 22, 1986 CHOWN(2)