10-23-2009
10 More Discussions You Might Find Interesting
1. UNIX for Dummies Questions & Answers
Help me please,
I wanna know if it's possible to define in windows the option when somebody starts a telnetsession to a unix machine it automatically logs in with the username and password of this user. Or if there is a possibility to set the username and password to an Icon on the users... (3 Replies)
Discussion started by: Herwin
3 Replies
2. UNIX for Advanced & Expert Users
Having a problem on AIX 4.3.3 with the following error when more than 2 users try and sign onto the server.
3004-312 All available login sessions are in use.
???? (1 Reply)
Discussion started by: Docboyeee
1 Replies
3. UNIX for Advanced & Expert Users
Hi All,
I've login to Unix using login name guest and I'm working on it,
I need another session to run some script hence tried to login
but password invalid it says here my question is :
Since I'm in working in one session can I set the password without knowing old password? is there any... (1 Reply)
Discussion started by: krishna
1 Replies
4. UNIX for Dummies Questions & Answers
Im having a problem using unix program client ReflectionX. as soon as i login to one session i type to change to any directory or type something but the problem is that what i type in is not what you get. ie i type:
$cd ~/alejo (to change HOME DIRECTORY - alejo subdirectory
but when i type it... (2 Replies)
Discussion started by: alexcol
2 Replies
5. Shell Programming and Scripting
Hi,
I'm currently working on a perl website, and I would need a system where a few users can login into the administration side of the site. about 5-10 users maximum, all pretty simple.
I was thinking of using an .htaccess file and a seperate admin folder on the server. I'm wondering if there... (2 Replies)
Discussion started by: LNC
2 Replies
6. Solaris
I am not able to login in gnome session and java session in Sun solaris 9& 10 respectively through xmanager as a nis user, I am able to login in common desktop , but gnome session its not allowing , when I have given login credentials, its coming back to login screen, what shoul I do to allow nis... (0 Replies)
Discussion started by: durgaprasadr13
0 Replies
7. Shell Programming and Scripting
Besides 'who am i' and 'tty' what commands could be used to determine if a session is interactive as compared to a web process or cron process. Any command should work with the common unix variants. (3 Replies)
Discussion started by: jgt
3 Replies
8. UNIX for Dummies Questions & Answers
When using Oracle, we have an option to turn spool on, which records that transactions and output to a file. Any such options on UNIX, where I can get everything I have on my screen into a file? That would be helpful in documenting the OS level changes that I perform manually.
regards
Roshni (1 Reply)
Discussion started by: RoshniMehta
1 Replies
9. Shell Programming and Scripting
Hi
I need to track what commands run in login session in solaris whether it is root or any normal users in bash shell.
My actual requirement is that when a user (nomal/root) login into the system, whatever commands he run, it should log into file on specified path . I don't require command... (4 Replies)
Discussion started by: hb00
4 Replies
10. UNIX for Advanced & Expert Users
Hi,
How can I find out the login and logout time of the old UNIX session/user?. (2 Replies)
Discussion started by: sharif
2 Replies
LEARN ABOUT LINUX
setegid
SETEUID(2) Linux Programmer's Manual SETEUID(2)
NAME
seteuid, setegid - set effective user or group ID
SYNOPSIS
#include <sys/types.h>
#include <unistd.h>
int seteuid(uid_t euid);
int setegid(gid_t egid);
Feature Test Macro Requirements for glibc (see feature_test_macros(7)):
seteuid(), setegid():
_BSD_SOURCE || _POSIX_C_SOURCE >= 200112L || _XOPEN_SOURCE >= 600
DESCRIPTION
seteuid() sets the effective user ID of the calling process. Unprivileged user processes may only set the effective user ID to the real
user ID, the effective user ID or the saved set-user-ID.
Precisely the same holds for setegid() with "group" instead of "user".
RETURN VALUE
On success, zero is returned. On error, -1 is returned, and errno is set appropriately.
ERRORS
EPERM The calling process is not privileged (Linux: does not have the CAP_SETUID capability in the case of seteuid(), or the CAP_SETGID
capability in the case of setegid()) and euid (respectively, egid) is not the real user (group) ID, the effective user (group) ID,
or the saved set-user-ID (saved set-group-ID).
CONFORMING TO
4.3BSD, POSIX.1-2001.
NOTES
Setting the effective user (group) ID to the saved set-user-ID (saved set-group-ID) is possible since Linux 1.1.37 (1.1.38). On an arbi-
trary system one should check _POSIX_SAVED_IDS.
Under libc4, libc5 and glibc 2.0 seteuid(euid) is equivalent to setreuid(-1, euid) and hence may change the saved set-user-ID. Under glibc
2.1 and later it is equivalent to setresuid(-1, euid, -1) and hence does not change the saved set-user-ID. Similar remarks hold for sete-
gid().
According to POSIX.1, seteuid() (setegid()) need not permit euid (egid) to be the same value as the current effective user (group) ID, and
some implementations do not permit this.
SEE ALSO
geteuid(2), setresuid(2), setreuid(2), setuid(2), capabilities(7), credentials(7)
COLOPHON
This page is part of release 3.27 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 2009-10-17 SETEUID(2)