My problem is, if I set "false" shell to my user, that is working with FTP, but If a user has false shell, when the user try to logon for example via SSH, the SSH connection should be kill/close, but the SSH session is will be "defunct".
FTP connection works as well, but what about the SSH?
And this defunct processes cannot kill with kill-9 command, just if I kill the defunct parent sshd process.
Quote:
Originally Posted by zaxxon
If you don't give the user a shell, the ftp login for that user will not work. At least not on a AIX 5.3 or Debian Lenny box.
If you want to enable login via ftp and deny it for ssh/scp/sftp, let him have his shell, but add in /etc/ssh/sshd_config something like:
When I ps -ef I see about 3 or 4 <DEFUNCT> things - what are these, and what causes them? Are they a concern? How can I fix them?
Thanks,
Michael (4 Replies)
how can i assure that daemon process which is being run as init child,can be removed immediately from system when it goes defunct or to avoid daemon process becoming defunt? (5 Replies)
http://c.fsdn.com/fm/screenshots/70112_thumb.png Cloud User Shell (cush) is a multi-call executable bringing RESTful cloud control to the command line, combining many useful cloud computing utilities into a single executable. It follows the Unix philosophy of writing components that work together,... (0 Replies)
Hi,
Can any one help me to get rid of defunct process on UNIX IBM AIX box. These processes started when the system was rebooted almost after 1 1/2 years. Once one defunct process is created then all the user ids get infected and in turn creates numerous defunct processes. We have tried... (6 Replies)
hello everybody!
Is there any way to identify if a process is defunct or if it is still running? (in C).
for example: by using a signal such as SIGCHLD?
thanx in advance (1 Reply)
My system is running solaris zones and oracle dbs in all the zones .. and now i find more then 4500 defunct processes in ps output. Can anyone know about this how to kill these
# ps -ef | grep defunct | wc -l
4899
And when i do ptree on one of the pid it shows most of the defunct... (3 Replies)
HiI had a tool fail recently, on analysis I found it was cleaning up orphaned directories that had been created by specific processes that had died for some reason, thus failing to clean up after themselves.The directories were of the form /dir.pid. The tool would look to see if any instances of... (2 Replies)
for example, if we specify,#!/usr/bin/ksh then the script will be executed in korn shell.
If we don't specify that line, the script will be executed using the default shell.
So, how we can identify the default shell for the current user?
Will it be in .profile file ?
Thanks (13 Replies)
I would like to replicate the functionality of chsh (or passwd -e) by awk.
This is what I got so far, but I think there should be an easier way to search and replace field $7 only for lines beginning with user_name:
awk -v user_name="$user_name" -v new_shell="$new_shell" -F: '$1 == user_name {... (2 Replies)
Discussion started by: nomad84
2 Replies
LEARN ABOUT CENTOS
ftpusers
FTPUSERS(5) Linux Programmer's Manual FTPUSERS(5)NAME
ftpusers - list of users that may not log in via the FTP daemon
DESCRIPTION
The text file ftpusers contains a list of users that may not log in using the File Transfer Protocol (FTP) server daemon. This file is
used not merely for system administration purposes but for improving security within a TCP/IP networked environment. It will typically
contain a list of the users that either have no business using ftp or have too many privileges to be allowed to log in through the FTP
server daemon. Such users usually include root, daemon, bin, uucp, and news. If your FTP server daemon doesn't use ftpusers then it is
suggested that you read its documentation to find out how to block access for certain users. Washington University FTP server Daemon
(wuftpd) and Professional FTP Daemon (proftpd) are known to make use of ftpusers.
Format
The format of ftpusers is very simple. There is one account name (or username) per line. Lines starting with a # are ignored.
FILES
/etc/ftpusers
SEE ALSO passwd(5), proftpd(8), wuftpd(8)COLOPHON
This page is part of release 3.53 of the Linux man-pages project. A description of the project, and information about reporting bugs, can
be found at http://www.kernel.org/doc/man-pages/.
Linux 2000-08-27 FTPUSERS(5)
08-27-2010
