Most systems don't honor setuid/setgid on scripts. My Linux system at home doesn't, and I don't believe HP-UX or AIX do either.
However, Solaris does honor setuid scripts. A setuid script will open an unclosable security hole on most systems. Solaris has the fd file system and uses it to close that particular hole.
I too think that sudo is right way to go here; so I have been reluctant to mention another option. But now that I'm here... Let's say that we have three users whose processes need to be killed:
moe (uid=1025)
larry (uid=1026)
curly (uid=1027)
And we want shemp (uid=1028) to be able to kill processes owned only by moe, larry, and curly. We create a group called "killers" with a gid of, say, 1500; and we make shemp a member of that group. Now, we
Now /usr/local/killcmds has a private kill command for each killable user. It is setuid to the target and it can be executed only by members of the killers group. These kill commands are enough, but I would also develop a script as a front end that invokes the correct kill command. I have not tested this, but I believe that it will work.
Hi All,
How can i give permission for a specific user ( eg. admin ) ?
I tried with chmod admin+r prog.sh
which doesnt work.
Is there any way i can specify a user's name and give the permission?
Thanks in advance.
Saneesh Joseph. (1 Reply)
I have some of programs in unix system which are to started with one_user say "xxxx".
I have sudo permission if i start these programs with sudo it shows root permission. But i want these programs permession should be "xxxx".
I tried "su user_name -c Program_name"
but it is not... (3 Replies)
Hi all,
I created testuser. by following command.
/usr/sbin/adduser -n test -d /disk05/collections/GET/testdata/
and then set its password by following command.
passwd testuser
When I login to system by testuser, it enters everything is ok.
The problem is how to set permission to this... (3 Replies)
Is there any possible way to give permission to a user to a file whose not a member of that group. Also the permission of the file shouls be given only to that USER but not all OTHERS.
Thanks in Advance for ur replies/suggestions... (5 Replies)
I have problem giving user access to his public_html directory.
While when I am logged as root I can access my files by going to
www.myserver.com/file.htmlwhere file.html is actually on this path...
var/www/file.htmlBut when user tries to access his file.html on this path....
~user/file.html it... (10 Replies)
I have a script that do read data for Munin Graph.
My problem is that it have some reading problems, and I do not know how to fix it.
script traf.sh (its not the complete script)#!/bin/sh
PORT="80"
NETDEVICE="eth0"
IPTRAFlogdir="/var/log/iptraf"
... (8 Replies)
Hi,
I'm newbie to unix.
There is a directory, say Testing/ under /home/user1.
I have created a user by the name check.
I was looking for a way to give the above user read & execute access only to this directory Testing/ while for other remaining files,directories,etc this user... (2 Replies)
Hi folks,
I am trying to grant the access like below items using the setfacl command, but i couldn't achieve as what I required. any other possibility.
username : testing
Readonly access in /form_dl/system/prd/logs
Write only access in /form_dl/system/prd/deploy
No access to other... (0 Replies)
Hi All,
We have a scenario in production where we want only one user from a group to modify the file. The file is not set to write permission for application manager.
-r--r--r-- 1 amgr u00 15661716 Aug 30 00:06 DCI.dat
So here amgr will have permission to edit the file. We want a... (10 Replies)
Discussion started by: arunkumar_mca
10 Replies
LEARN ABOUT PHP
setuid
SETUID(1) General Commands Manual SETUID(1)NAME
setuid - run a command with a different uid.
SYNOPSIS
setuid username|uid command [ args ]
DESCRIPTION
Setuid changes user id, then executes the specified command. Unlike some versions of su(1), this program doesn't ever ask for a password
when executed with effective uid=root. This program doesn't change the environment; it only changes the uid and then uses execvp() to find
the command in the path, and execute it. (If the command is a script, execvp() passes the command name to /bin/sh for processing.)
For example,
setuid some_user $SHELL
can be used to start a shell running as another user.
Setuid is useful inside scripts that are being run by a setuid-root user -- such as a script invoked with super, so that the script can
execute some commands using the uid of the original user, instead of root. This allows unsafe commands (such as editors and pagers) to be
used in a non-root mode inside a super script. For example, an operator with permission to modify a certain protected_file could use a
super command that simply does:
cp protected_file temp_file
setuid $ORIG_USER ${EDITOR:-/bin/vi} temp_file
cp temp_file protected_file
(Note: don't use this example directly. If the temp_file can somehow be replaced by another user, as might be the case if it's kept in a
temporary directory, there will be a race condition in the time between editing the temporary file and copying it back to the protected
file.)
AUTHOR
Will Deich
local SETUID(1)