The "root" account is the most privileged account on a Unix system.

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237 views

How to prohibit from changing an owner of modifiable files?

I sometimes need to run a Qt Creator from root. After that, some config files of Qt Creator suddenly have a root as an owner. Therefore when running Qt Creator as user, I am getting nag warnings about ...
0
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3answers
6k views

What is the function of user group root? [duplicate]

Possible Duplicate: What does it mean to be in group 0? I wanted to avoid using SSH root login to backup my remote server. Thus I set up a non-root user account on the server and place it ...
1
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3answers
344 views

Can a mounted encrypted filesystem be safe from root?

I have access to a shared remote computer from which I would like to run some code I have written which uses an interpreter (not a compiled code). I would like to protect this source code from other ...
6
votes
1answer
1k views

Mounting from dolphin vs commandline

I have been wondering how this is possible (i.e. how this works internally). When you want to mount a directory you have to be root. sudo mount /dev/something /mnt/somedir I know you can get around ...
2
votes
3answers
2k views

How to start subsequent shells as root?

I run my local testing server inside a VM. I often have to open up multiple windows in it, and all have to be logged in root. Usually this is accomplished by writing su on every tab, a total of 7-8 ...
0
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0answers
50 views

Root user can't do everything? [duplicate]

Possible Duplicate: Redirecting stdout to a file you don’t have write permission on I'm quite new to Linux and I have a permissions questions. I'm using Linux Mint. If I go to /opt and do ...
3
votes
2answers
183 views

Make a programme executable by common users

I've installed hddtemp on my Arch Linux, but it needs to be run with root permissions. I want to execute it as a normal user without using sudo. How can I do this?
2
votes
3answers
3k views

Run local scripts on multiple servers using sudo user through a script

I have about 100 remote servers. I want to manage all my servers using one terminal server to update , run commands with sudo privileges. I need to have one main script that takes another test script ...
0
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2answers
2k views

I think somebody tried to hack me

root@host [/var/log]# tail -f secure Jan 3 20:16:10 host sshd[22670]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=61.142.131.120 user=root Jan 3 20:16:12 ...
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3answers
2k views

Root password keep changing

This is frustrating. I am often able to login with a root password. Then I cannot login again. However, I am still logged in. Hence my password must be correct. I changed the root password with ...
1
vote
2answers
169 views

Problem accessing /home from different partition

I'm currently using Chakra on /sda1 and Fuduntu on /sda2 (a partition I keep for trying out and playing around with distros), and both systems use /sda3 for each different /home partition (I'll call ...
8
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2answers
12k views

How can I resize my root partition in Debian?

I am trying to add space to my root partition and am really not sure the safest way to go about it. I have read this thread, Can I resize the root partition without uninstalling and reinstalling ...
1
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3answers
2k views

Ask root for password when using su command

I'm trying to edit /etc/sudoers via visudo, but I don't know how to change the root rights. I want root to be prompted for the user1's password, when he tries to use su user1.
5
votes
3answers
293 views

Are sudo and gksudo safe?

I noticed after running a sudo command in terminal or running a administrative application that uses gksudo, it won't ask again for the password for a time (something like 5 minutes). Now let's ...
2
votes
2answers
432 views

Finding root password

I installed a Ubuntu and it only has a user. I can login to the system without login. It doesn't ask me for un/pwd. but when I am in, and I want to run some commands as root (sudo), it ask for ...
2
votes
3answers
3k views

Shell script to become root

How can we write a shell script to become root? That is I donot want to input the password at prompt it should be within the script itself. I was trying to make but failed to do so.Is it possible, if ...
3
votes
1answer
534 views

Why is it a bad idea to run as root? [duplicate]

Possible Duplicate: Concern about logging in as root overrated? I often hear that it's a bad idea to use root for general use. Why is this a bad idea?
7
votes
3answers
3k views

Added bin directory to my path, can't execute commands in it with 'sudo command'

I made a bin directory in my home folder where I place all my scripts. Then in my .bashrc I added the following: export PATH=$PATH:/home/myusername/bin So I could access files I placed in there ...
8
votes
2answers
22k views

How do I find out if I am sudoer?

How does Linux system behave when I am not sudoer? Here is what happens if I try to use sudo: server:/tmp>$ sudo cal [sudo] password for user: Sorry, try again. Is it possible that I just don't ...
2
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2answers
9k views

How to remove root password on Debian?

I'm running Debian in a virtual machine and for convenience I would like to remove the password on root (since it doesn't really matter what happens to this box). Internet hasn't been too helpful on ...
5
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2answers
4k views

Another account with same uid as root gets prompted to set new password for root, not itself

After upgrading the os from 5300-06 to 5300-11, this weird behaviour happened. My system had another unix account, let's call it "abc", purposely configured its uid to 0 for working as a root with ...
0
votes
1answer
3k views

su authentication failure after setting new password

I compiled a new kernel(3.2) and I have it running on an ARM board. I wanted to enable some params on the /proc directories. Therefore I have to be logged in as root. Hence I did the following on my ...
18
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4answers
1k views

How universal is sudo?

I was writing some instructions on how to install something (TeX-related - if you don't ask, I won't ruin your day by supplying more details) and used sudo to install system-wide. Someone commented ...
2
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1answer
1k views

How do I get simple scripts which seem to need root priveliges to run via the www-data user?

I am programming a small webinterface to control samba on Debian (kernel 2.6.32-5-686). I started by writing simple scripts to add users, create folders, etc. They worked fine when run as root. ...
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3answers
3k views

Root permission - username ALL=(ALL) ALL does not work

I'm a beginner. I'm trying to give my user root permissions, so I edited the sudoers file like this: black ALL=(ALL) ALL "black" is my username. But I still don't have root permissions, and ...
2
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1answer
173 views

Can I lock the root account during an install of Debian GNU/Linux 6 “squeeze”?

By default, Ubuntu locks account root; can I do the same, in Debian GNU/Linux 6 "squeeze", during install?
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0answers
191 views

Automatically start named pipe reader on startup?

I'm trying to run a script with root access from PHP. I can't do that because Apache's user, www-data, don't have root access because of security reasons. To fix that, I was advised to use a named ...
2
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1answer
10k views

How to operate as root in GUI?

Following the standard recommendation I use my Linux system with a normal account and switch to root only in special cases. When browsing the file system using GUI sometimes an error pops up - You do ...
6
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2answers
23k views

How to give user root permissions?

I just installed Arch. Works great. I created a new user, logged in with it and now I'm trying to install several thing with pacman. But I keep getting the error: error: you cannot perform this ...
4
votes
2answers
1k views

Start Vim as my user with root privileges

I have my custom Vim files in ~/.vim and settings in ~/.vimrc. However, sometimes I have to edit some files in /etc and such. If I start Vim like this: $ sudo vim /etc/rc.conf I lose my config ...
4
votes
1answer
2k views

SSH login as root fails, but I'm sure I entered the right password

What am I missing? I change the root password on a unix machine, then try to log in with that password. PasswordAuthentication is set to yes in sshd_config and the sshd daemon has been restarted. ...
4
votes
1answer
3k views

GNU Screen does not work when su'ing from root to a normal user

Is it normal, that when I am logged in as root, and the used su user, I can't access that users screen sessions? In this case, screen complains about it not having permissions on /dev/pts/x. I ...
6
votes
3answers
4k views

What does it mean to be in group 0?

Several users in a system I inherited have their group set to 0 in /etc/passwd. What does that mean? Do they essentially get full root privileges? The system is running CentOS 5, and the users ...
23
votes
1answer
2k views

Why can't root execute when executable bits are not set?

root user can write to a file even if its write permissions are not set. root user can read a file even if its read permissions are not set. root user can cd into a directory even if its execute ...
2
votes
2answers
393 views

Bash Process Substitution does not work as 'root' on OS X

OS X 10.6.8, if I use Bash Process Substitution as 'root', it just doesn't work. Is it supposed to be so? Why? Note: here's what I mean... "<(list)" mysql -D robottinosino < <(echo ...
2
votes
2answers
620 views

Gaining root privileges in SCO

I am learning Linux for work, so am still a bit rusty on the edges. I need to change the folder permission of the directory /opt, and I know in Linux, you do the following: chmod 775 /opt I get a ...
2
votes
2answers
3k views

SFTP and sudo using Windows client?

I want to download files from a linux system using a windows client. While there are many SFTP clients I am having the problem, that I need to access files where I need to be root. On the linux system ...
0
votes
2answers
2k views

How to assign user root rights?

I have Suse Linux on my desktop. So I am root and "normal" user. Frequently e.g. to start tomcat or install/remove a program I should use sudo or switch to super user. But I have defined many aliases ...
2
votes
2answers
357 views

Kubuntu - GUI context menu sudo/root

A couple of years ago I found something in a package manager that added a context menu item that allowed me to open files and save them normally without being harassed about file permissions. Can ...
2
votes
1answer
1k views

How to add folder to existing user [proftpd]

As we know we can add folder to user using useradd user -p user_passwd -d /home/ftp/user_dir/ -s /bin/false but how to add folder to existing user, for example /home/ftp/root for root ?
7
votes
4answers
1k views

How to add a line to a file which has only root write permission and to continue the script execution

I am trying to learn bash scripting. I am working on a practical problem and at one point I need to add a line to a file which requires root permission to write. The code looks like this: # some ...
2
votes
3answers
1k views

how to run shell on a remote server with root priviledge

I want to execute a shell script on a remote server, and the script should be run by root with no password required (or use sudo in the script). Can anyone give me some suggestions?
1
vote
1answer
2k views

exclude commands from user's sudo permissions

Consider the following line in a /etc/sudoers file: username ALL=(ALL) ALL, !/usr/bin/passwd as far as I know, this allows user username to use sudo, unless he not uses /usr/bin/passwd. But ...
1
vote
1answer
556 views

How to invoke root privileges from a password prompt of “Software Update” window?

When I try to install software updates using the "Software Update" GUI, I am asked for the root password. Although, I can 'su' in a terminal, the password is not recognized as correct in the GUI ...
0
votes
1answer
540 views

Is it possible to run vlc as root? [duplicate]

I installed VLC player using this old video. I don't know how to access other users, but root itself only, so I don't know if the video is outdated or works at all, anyway can I install VLC on root ...
2
votes
1answer
554 views

root can only login with bash restricted mode

I was implementing a series of recommendations to 'harden' my linux server, involving lots and lots of changes. Linux is CentOS 6.2, kernel 2.6.32-220.*. I'm currently using tty2..tty5 (no X/GUI etc) ...
2
votes
1answer
2k views

How do I restart apache as non-root (using a git-hook)?

For one specific user I want to be able to restart Apache. This user does have sudo privileges and I could run sudo /etc/init.d/apache2 reload, but I want to include this restart script in a git ...
4
votes
2answers
509 views

Force change of a user's cwd as root

I'm looking to change a user's process such that I can set it's cwd. Related, and secondary to the question, I have a filesystem I want to unmount but a user is sitting on it with a bash process. I ...
1
vote
2answers
2k views

shell script to execute in root mode

I need execute script that have commands which should be run in root mode. If I put sudo before command then when I run script I see permission denied ( I don't have a chance to write password). If I ...
4
votes
3answers
3k views

Problem with vim when logged in as root

When I login as root or edit a file by sudo mode all of the options in my /etc/vimrc are not working (e.g. highlight line-number etc.)