Change the privileges needed to run a program

 
Thread Tools Search this Thread
Operating Systems Linux Debian Change the privileges needed to run a program
# 1  
Old 11-17-2010
Change the privileges needed to run a program

Hi everyone, I have an issue with a project of mine. I have to run a program on a terminal which requires to be logged in as su to have it run it. Given that I'm having problem to use expect to give the password I'd like to change the privilege of that program from SU to normal user ( I have the SU password, the problem is that it's going to be a standalone machine with everything automated).

Sorry for my English, I'm not a native speaker

Thanks for your help
# 2  
Old 11-17-2010
Hi,
have you tried ssh keys?
# 3  
Old 11-17-2010
I use ssh keys to connect to the terminal, but once there i need to launch a program as SU, the thing that I wan to do right now is change the privileges needed to run that program from SU to normal users
# 4  
Old 11-17-2010
Ok. try that:

Code:
@maya# ssh root@yourhostname ssh anotheruser@yourhostname $PATH/hello_world.sh
    Hola we
@maya#

# 5  
Old 11-17-2010
Is it something like chmod 644 rwx?

---------- Post updated at 08:37 PM ---------- Previous update was at 08:35 PM ----------

Thanks for everything I found the answer I was looking for: chmod 777
# 6  
Old 11-17-2010
That is a bad solution, cos' everyone can execute the program. your cuestion was about switch user to execute a program.

good look.
# 7  
Old 11-17-2010
This is not quite right.

You need setuid - the program has to belong to root or whoever you su to.
Assume your file is named "myfile" someuser is whover you su to - could be root
Code:
su - someuser
chown someuser:somegroup myfile
chmod 4711 myfile

This will work ONLY if the filesystem where you have "myfile", will allow setuid. The chmod 4711 command sets setuid, and sets permissions to 711. to do a setgid try chmod 2711 [filename]. You do this if having group permissions lets the program run correctly.

Note: setuid programs unless written REALLY well are a security risk.
Login or Register to Ask a Question

Previous Thread | Next Thread

10 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

Can you gain root privileges if the suid program does not belong to root?

I had a question in my test which asked where suppose user B has a program with 's' bit set. Can user A run this program and gain root privileges in any way? I suppose not as the suid program run with privileges of owner and this program will run with B's privileges and not root. (1 Reply)
Discussion started by: syncmaster
1 Replies

2. UNIX for Dummies Questions & Answers

Command run with admin privileges

Hi all, I want to run a single command (gdm-restart) which has admin privileges as normal user. I have done these below steps so for. 1. cp -p /usr/sbin/gdm-restart /usr/bin 2. chmod o+w /usr/bin 3. chown user /usr/bin. But still not success. So kindly please let me know whether there is... (3 Replies)
Discussion started by: mastansaheb
3 Replies

3. Homework & Coursework Questions

C++ Environment needed on Solaris,Program lifecycle

Hello, I would like to build some sample C++ application on Solaris SunOS 5.8 Generic Virtual sun4v sparc. so I would like to know what are the compilation utilities and runtime utilities I need to get in my machine and will any one explain me the detaied life cycle of program like what... (1 Reply)
Discussion started by: Revathi R
1 Replies

4. Programming

Wrapper for unix program - urgent help needed

Hello all , i need some help asap i have a program that keeps killing the machine when i did google searches and 2 days later i ran strace it seems the programm keeps making a system call to gettimeofday to i guess increment a counter ? gettimeofday({1347986584, 464904}, NULL) = 0... (6 Replies)
Discussion started by: NetworkLearning
6 Replies

5. Shell Programming and Scripting

How to use dir_colors to change color of files with executable privileges

I'm extremely new to UNIX/Linux so apologies if I screw up the terminology. I'm trying to figure out how to change the color of file names in BASH. For the most part I've got it working out but executable files are giving me some trouble. I'd like a certain file type (*.inp) to be a... (4 Replies)
Discussion started by: Caerus
4 Replies

6. UNIX for Dummies Questions & Answers

Help needed to run simple java program in linux

Hi guys , This is the first time i m running java application inside linux. i have installed jdk-6u20-linux-i586-rpm.bin jre-6u20-linux-i586-rpm.bin in my linux machine. and set JAVA_HOME and JRE_HOME variables respectively. # echo $JAVA_HOME /usr/java/jdk1.6.0_20/ # echo $JRE_HOME... (6 Replies)
Discussion started by: pinga123
6 Replies

7. Shell Programming and Scripting

Change file privileges automatically

Hi, Is it possible to write and run a shell script for specific directory( Apache/htdocs) that changes root privilege read/write to chmod 755 when a program uploads a file (word,PPT,XSL,..) to that directory Thanks, Mk (3 Replies)
Discussion started by: mkohan
3 Replies

8. Programming

Help needed regarding c program

Hi, Currently, i have an application that does logging of messages into a text file and i record the timing for the messages in a format. However, i need to log the messages up to millisec level and the struct tm i am using now only support up to sec, is there any other way to get millisec? ... (2 Replies)
Discussion started by: dwgi32
2 Replies

9. Programming

Wierd C program. Help Needed

Hi, Please see this: When i make a declaration as: char *i, j, *k; and then do sprintf( k, "print.sh %s", i ); the program works fine. But when i change the declaration to: char *i, *k; and then do sprintf( k, "print.sh %s", i ); I get a segmentation fault at the 'sprintf'... (16 Replies)
Discussion started by: karthikb23
16 Replies

10. UNIX for Advanced & Expert Users

Can't use sendmail ( Program mode requires special privileges)

I just updated sendmail to the newest version and got into this trouble. Somehow only can root can use sendmail while the other users will simply get "SMTP went away" when using pine or "can not chdir(/var/spool/mqueue/): Permission denied Program mode requires special privileges, e.g., root... (1 Reply)
Discussion started by: Micz
1 Replies
Login or Register to Ask a Question