I need to edit the system time as a not-root user. I am carrying out the following actions in my program.
1. Read the User Id of the process. User_ID= getuid() 2. Printing Capabilities(Permitted, Efffective, Inheritable)of the process 3. Setting UID = 0, using setuid(0) 4. Calling the prctl(), function to keep capabilities 5.Switching the UID from root to User_ID of the process 6. What we have now is a process with root capabilities as a non root user 7. On printing Permitted, Effective, Inheritable capabilities, I get the following --> Permitted = 0xfffffeff = Effective Inheritable = 0x0; with UID = 1001; 8. I then try and set the system time with --> system("date -s 10:00"); 9. I get an error: date: cannot set date: Operation not permitted 10. I am unable to understand as to why I cannot set the time even thought the capability bit CAP_SYS_TIME in the Permitted and Effective sets are SET.
Accidentally I changed the ownership of all the directories under / to my own instead of root:root. Now I am unable to use sudo and many bad things are happening. Is there a way to revert the changes or change the permissions again to root:root or make sudo work ?
Is It possible to change a process running in root-user to non-root-user by setting suid / uid / euid / gid etc... I so please instruct how, when and wat to set in order to change a process running in root-user to non-root user
I've checked out a subversion project with source c++ files in netbeans 6.8 on Red Hat 5.5. My machine has a dual boot with windows xp and RHEL 5.5 so I checked out the project on a folder called winshare which is a shared drive/partition (E: under xp) allowing both operating systems to access the contents. I've Fedora as virtual machine on xp and wanted to be able to work on the source seamlessly whether using fedora or RHEL.
Problem is that Netbeans is able to build the source just fine but I can't seem to run the generated executable. It has -rw-rw---- permission and the owner is the same user logged in (let's say user1) but no matter what I do, whether I change permissions as user1 or root issuing command chmod 777 -R /dir/where/file/is does not have any effect whatsoever on the executable as well as any .cpp or .h files (nothing that I need exectue permissions on .cpp but just to make a point).
Im trying to run this program and they say I should not run it as root but as a diff user. how to change from root to dif.user. I am using linux CentOS 5.5. Is it a terminal command? How do i create a diff user and log in as it?
For a user on a Linux host, I need to make everything inaccessible besides his home directory. I have heard that this is usually done by changing the root directory for the user (and setting it to the user's home directory), however I couldn't find the way to do it.
I thought about the chroot command, but it seems it just runs the specified command, considering the specified directory as the root directory. So it seems chroot is not what i need. So my question is: what is the command which changes the user's root directory?
I want full permissions for all computers in my house, without having to get up and go to the other room and change permissions for the file, folder, drive, directory, computer, etc., then go back to the other room again.
I just created a partition, as THIS user, THIS machine, rebooted, and cannot create a folder on the partition I just created. UGH. No more of this stuff... I guess at the very least, I'll still have to log onto each machine for this?
I'm very new to Linux, i'm running Ubuntu and i'm trying to install a program. In the instructions it says "Check that you ARE NOT root, never run similar tools as root! just change file permissions". How do i check if i'm root or what am I supposed to do here?
after a fresh install of fedora 13 I was expecting a few niggles and here's one, I've googled and read man chmod and chown and there seems to be plenty of conflicting advice, oh yeah the problem, I installed a package called get_iplayer (allows downloading of bbc iplayer content) via yum, only thing is I can only run it as root whereas in f12 I could as a normal user. It's probably the simplest command to change permissions, also I can't find any info on what the different numbers mean (775 777 etc)
how to use permissions. I ran into a weird problem in which I am unable to change permissions as root. I have a file I've been testing commands on, and somewhere along the line I think I gave it zero permissions. Now I'd like to restore some permissions, but can't. Here's what I'm looking at:
Code: jeremy@jeremy-laptop:~/test$ ls -l total 16 -rw-r--r-- 1 jeremy jeremy 235 2011-05-17 13:15 onelink -rwxr-xr-x 1 jeremy jeremy 27 2011-08-02 18:05 threecopy -rwxr-xr-x 1 jeremy jeremy 27 2011-05-09 17:10 three.txt
I recently got a new external drive and backed all my files up on the new external: movies, music, docs, etc. Now all my files have permission rights to the root only. I was able to change this by open up nautilis from a terminal in root and change the permission on the whole drive to my current user so I can access the files, copy & delete the files. I wanted to change some music file information in Kynamo this morning and was not able to since all the individual files still belong to the root. How can I change this permission issue without having to change each individual file?
I'm using an older redhat system (2.6.9-22.ELsmp) here which is running an older mysql (server version: 4.1.12). I don't think that's the source of the problems. I believe that have understood things rightly when I say that the mysql root user is unrelated to the linux root user ... in my case I believe the root user to be the unix user mysql. So when I connect to the server (local host from a local terminal) I use: Code: -bash-3.00$ mysql -u mysql -p and enter a blank password
This gets me on, however I seem unable to do anything like create database or alter privilege. I wonder if its related to my finding no database called mysql? -bash-3.00$ mysql -u mysql -p Enter password: Welcome to the MySQL monitor. Commands end with ; or g. Your MySQL connection id is 11 to server version: 4.1.12
Type 'help;' or 'h' for help. Type 'c' to clear the buffer. mysql> show databases; +----------+ | Database | +----------+ | test | +----------+ 1 row in set (0.00 sec) Although I understand that show databases will not show things I have no priv to see. Does this mean my settings for the users are all screwed? How do I rectify this situation? Some other (perhaps) useful information.
Code: [root ~]# cat /etc/my.cnf [mysqld] datadir=/var/lib/mysql socket=/var/lib/mysql/mysql.sock # Default to using old password format for compatibility with mysql 3.x # clients (those using the mysqlclient10 compatibility package). old_passwords=1 [mysql.server] user=mysql basedir=/var/lib [mysqld_safe] err-log=/var/log/mysqld.log pid-file=/var/run/mysqld/mysqld.pid
So my BASEDIR seems to be nothing like is suggested in the documentation at [URL].
Get Fedora 11 and Apache installed. Open web browser and enter http://localhost and I get a "Fedora Test Page" that shows Apache is working (according to the info on the page). It says to put my web documents in /var/www/html/ ... however, as a user I cannot access it (put anything there) and I can't change the permissions (belongs to root) I'd like to run this as an intranet web server in our small ( <100 users) company.
I have been VERY lucky and managed to restore from a formatted ext3 /home/ partition. I used testdisk to reset the original partition which had had nothing done to it since formatting(!). However some of the file permissions are a altered and I cannot change them. I have tried "su chmod" and even temporarily enabled the root account itself and tried to alter the ownership/permissions from root 'proper' without it helping.
Here is an example of the output of ls -l drwxr-xr-x 2 martyn martyn 4096 (date) (time) sponsors ?-----S--T 63231 92820383 44090688 4286824785 (date) (time) order.xls
The first line looks like a normally formed output and indeed is readable. The second line looks corrupted and I don't have a clue how I can reclaim this - or even if it is possible. Should I count my blessings most of my files are intact and leave those be?
Being new to Linux, i've just about got used to the Debian setup procedure now, but had a quick question on the default ownership of files and folders. On my default Debian installation, almost all the folders and files are owned by root:root. Is this the correct advised configuration or should the folders and files be owned by a user without root permissions - eg user:user?
How to enable Root login...i cant copy or move something on the HDD...I have administrator rights and password for root but i cant change permissions for the HDD without login on root and root login are not allowed .
Need help maintaining permissions across multiple directories. Have Ubuntu 8.04 Hardy Heron. O/S installed, updated and running with no problems.Why is it that my administrator user id doesn't seem to have root permissions to create directories? I am trying to setup hosting 3 separate websites and therefore create 3 separate directories to manage all associated files for the 3 websites. Also, I am attempting to read through the tutorials located at:URL...
In my /var/www directory, I have everything set up with: user: www-data group: developers directories: chmod 570 files: chmod 460
Everything seems fine. Users from the developers group can edit files and all, but now we began using the Git repository, and whenever a user edits a file (ie. Joe who is a developer,) file permissions get screwed again. Now they're: user: Joe group: Joe directories: chmod 755 files: chmod 644 How can I fix this so permissions remain the same?
Recently I installed ubuntu 10 on my machine. Installed using windows installer and it is installed in one of the windows drive. It didnt asked me for root password, so i used sudo -i to become a root user.
now when i was trying to execute a file named all.bash [URL].. using ./all.bash but it says permission denied error. I saw that the file have only read and write permission. I tried to change the permission by using chmod u+rx all.bash but it does nothing. Is there any way to change the permissions.