|
|
Sponsored Content
Operating Systems
AIX
More than 1 UID 0
Post 302550332 by naveedaix on Thursday 25th of August 2011 10:45:19 AM
08-25-2011
|
|
10 More Discussions You Might Find Interesting
1. AIX
Currently, I have about 7 servers and the uid for a given person is different on each server. I want to make the uid's the same for a given username on each server. I know how to change the uid via smit, but when I do the previous uid number shows up as the owner for the files of that username.... (4 Replies)
Discussion started by: mcateriny
4 Replies
2. UNIX for Dummies Questions & Answers
Is it possible given a uid to determine information about the person with the uid? An example would be simple information regarding what group and the name of the person associated with that uid. It seems there is probably an easy staring me in the face but i cant seem to find it... (3 Replies)
Discussion started by: dreaming1
3 Replies
3. AIX
Hello
I want to find out how I can make sure in AIX that the UIDs cannot be reused Until after 6 Months after the user has left.
Thanks,
Noori (4 Replies)
Discussion started by: noori
4 Replies
4. Shell Programming and Scripting
How do i go about getting the uid of the user and verify ?
if
then
echo "You are not a superuser, please login as a superuser"
exit1;
fi
the above code doesn't work. can some guru please help me.
1. how to get the uid of the user ? i know by typing id but how to... (7 Replies)
Discussion started by: filthymonk
7 Replies
5. Shell Programming and Scripting
Hi Guys,
I'd like to ask your advice on the following, I've written this script to terminate a given process by name:
#!/bin/bash
echo 'Please enter the process you wish to terminate'
read process
pid=$(pidof $process)
kill -9 $pid
echo $2
to make it safer I want it to reject the... (4 Replies)
Discussion started by: Lora Graham
4 Replies
6. Shell Programming and Scripting
i need a script to process a password file and based on the UIDs in the password file, generate the new UID that is 1 greater than the highest uid.
i have some script logic but i dont really understand it. any help?
#!/usr/bin/perl
##########################################
#... (3 Replies)
Discussion started by: livewire06
3 Replies
7. Shell Programming and Scripting
is tty command opens a process in the system if yes then why process got the userid????? (5 Replies)
Discussion started by: Mac91
5 Replies
8. UNIX for Dummies Questions & Answers
Hi folks!
I need you help to discover what's the impact of a duplicated UID in an operating system. What's the meaning when someone put in different users the same UID? (3 Replies)
Discussion started by: phcostabh
3 Replies
9. Solaris
Hi,
I want to change user id gefadm ,uid=0(root) gid=0(root) to uid=16649(isaadmin) gid=16284(dstage),
how can i change this uid ,gid one value to another value.
Please provide the steps how can i change , uid=0(root) gid=0(root) to uid=16649(isaadmin) gid=16284(dstage).
Thanks in advance for... (2 Replies)
Discussion started by: sridhardwh
2 Replies
10. Solaris
Hi All,
I have to give permission to one of the groups called as "ABC" as like the permissions of the group "UNIXADM".
Could you please some one help on this issue ? (3 Replies)
Discussion started by: ramareddi16
3 Replies
LEARN ABOUT CENTOS
setuid
SETUID(2) Linux Programmer's Manual SETUID(2) NAME
setuid - set user identity SYNOPSIS
#include <sys/types.h> #include <unistd.h> int setuid(uid_t uid); DESCRIPTION
setuid() sets the effective user ID of the calling process. If the effective UID of the caller is root, the real UID and saved set-user-ID are also set. Under Linux, setuid() is implemented like the POSIX version with the _POSIX_SAVED_IDS feature. This allows a set-user-ID (other than root) program to drop all of its user privileges, do some un-privileged work, and then reengage the original effective user ID in a secure man- ner. If the user is root or the program is set-user-ID-root, special care must be taken. The setuid() function checks the effective user ID of the caller and if it is the superuser, all process-related user ID's are set to uid. After this has occurred, it is impossible for the program to regain root privileges. Thus, a set-user-ID-root program wishing to temporarily drop root privileges, assume the identity of an unprivileged user, and then regain root privileges afterward cannot use setuid(). You can accomplish this with seteuid(2). RETURN VALUE
On success, zero is returned. On error, -1 is returned, and errno is set appropriately. ERRORS
EAGAIN The uid does not match the current uid and uid brings process over its RLIMIT_NPROC resource limit. EPERM The user is not privileged (Linux: does not have the CAP_SETUID capability) and uid does not match the real UID or saved set-user-ID of the calling process. CONFORMING TO
SVr4, POSIX.1-2001. Not quite compatible with the 4.4BSD call, which sets all of the real, saved, and effective user IDs. NOTES
Linux has the concept of the file system user ID, normally equal to the effective user ID. The setuid() call also sets the file system user ID of the calling process. See setfsuid(2). If uid is different from the old effective UID, the process will be forbidden from leaving core dumps. The original Linux setuid() system call supported only 16-bit user IDs. Subsequently, Linux 2.4 added setuid32() supporting 32-bit IDs. The glibc setuid() wrapper function transparently deals with the variation across kernel versions. SEE ALSO
getuid(2), seteuid(2), setfsuid(2), setreuid(2), capabilities(7), credentials(7) 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 2010-11-22 SETUID(2)