Questions related to the sudo command that allows users to run programs with the privileges of a different user (normally the root user).

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1
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1answer
57 views

Block a command [duplicate]

I don't want any admin users in my system to execute the following command other than root. "sudo cp /etc/sudoers " Is it possible to block it for admin users only? I have tried lot but didn't get ...
0
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0answers
29 views

Get Access Problem as admin user

I want to access "sudoers" file and also access "su -" but I fail and get following error please check terminal output that I have tried. I am m-usman(admin) but not allow to edit or access ? :( ...
0
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0answers
27 views

After trying to fix sound “Unable to correct problems” error [duplicate]

I have been trying to get sound working on 14.04. It looks like now I've done something even worse, after following: http://ubuntuforums.org/showthread.php?t=1316634 I tried to do the following ...
1
vote
1answer
107 views

uTorrent server only working with 'sudo -i' option

Apparently it's not a working/not working issue. I have setup uTorrent server in my Xubuntu 14.04 following these instructions. How do I install utorrent on ubuntu 14.04 other instructions seem ...
0
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1answer
89 views

block certain dangerous commands?

In my High school there are few computer having Ubuntu 14.04 installed and many students know the Root password, how can I block/disable certain dangerous commands like :- rm -rf / rm -rf * ...
1
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1answer
47 views

How do I edit a system file when I am root user but I receive “you are not in the sudoers file”?

I am using Ubuntu 12.04(LTS) 64 bit. I have edited /etc/group and added my username erfan in front of vboxusers as following: root:x:0: daemon:x:1: bin:x:2: . . . erfan:x:1000: sambashare:x:124: ...
2
votes
1answer
81 views

Can not type \, | and ~ on Ubuntu inside Virtualbox

I have installed a Virtual Box Ubuntu 14.04. I run into two very basic problems: Somehow I cannot type \ | ~ characters in terminal or textfile. It is a clean and fresh install under Virtual Box. ...
0
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1answer
953 views

Authentication Failure while accessing super-user privilege

I get the root privilege when I type sudo. But when su asks for the Password, which I type in, the terminal says su: Authentication Failure
0
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3answers
180 views

sudo -s works but su does not in ubuntu?

I have Linux Virtual machine (ubuntu 12.04) installed on my Mac OS. On my terminal, user@192.78.0.1:~$ su password: su : Authentication failure user@192.78.0.1:~$ ls -lth /bin/su -rwsr-sr-x 1 root ...
0
votes
1answer
357 views

Unable to do su or sudo after upgrade from 13 to 14

I have upgraded from 13 to 14, and in the upgrade process a lot of errors occurred. Now I can't access root(via su command) or execute something like sudo apt-get install something. NOTE: This is ...
1
vote
1answer
76 views

echo to /etc/sudoers causing pasrse error

Using fabric if I echo to sudoers file for second time the file got corrupted works fine for first echo. What could be the reason? First echo: sudo('echo "django ALL=(ALL:ALL) ALL" | sudo tee -a ...
2
votes
1answer
2k views

Allow chown command to www-data user

Is there a way to allow chown command to be run by www-data but limiting it in a way that the files owner can be changed only to uids greator than that of www-data user? I already researched a lot ...
0
votes
2answers
172 views

What is the root user

If you use sudo su - or sudo -s you will get the full root certification "likewise a root user ". Is this user an official user or is it from canonical? ~$ sudo su - [sudo] password for username: ...
-1
votes
1answer
156 views

How to make everything run as root in ubuntu? [duplicate]

I have setup a virtual machine for compiling software for linux which I develop on Windows. I setup to automount a windows folder, run compilation scripts and then just shutdown. The machine isn't ...
0
votes
1answer
82 views

Is there a better command to use than Sudo? [duplicate]

I used to hear you are supposed to use gksudo, but that is no longer installed by default. What should be used in its stead?
0
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0answers
86 views

Networks not working after 14.04 install

Installed 14.04 on a Dell Inspiron 1721 that is running Windows Vista Home parallel. The wired and wireless network works fine in Vista but in Ubuntu it doesn't detect any network connections. I am ...
0
votes
0answers
25 views

How to skip entering password for sudo i.e. prepare script with permissions? [duplicate]

For work and other situations as well I'm running all sorts of sudo commands. Thank god (and devs), they can be run from Unity Laucher :) . But as a lazy timesaver I want these commands permanently ...
2
votes
1answer
128 views

Bash script using `sudo` runs correctly from cli but not when clicked to run

I am trying to get a simple bash script to run when I click on it. It runs perfectly from the cli but starting motion with sudo fails to start. I have that script setup with sudoers already for ...
0
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1answer
124 views

start Ubuntu 14.04 with terminal

I have a system with a dual-boot of Windows 8.1 32-bit and Ubuntu 14.04 64-bit. Ubuntu usually works but after I became root with the command "sudo su" and rebooted my PC it had a Black screen after ...
1
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0answers
28 views

Why does sudo sometimes asks for a different sudo user?

i have all my boxes setup to authenticate against openldap. when i logon with the local user (localmin) and run a command like; sudo service smbd restart it sometimes asks for the password of ...
1
vote
1answer
96 views

Setting proxy in Ubuntu terminal - proxy having special characters

I am trying to set proxy for a ubuntu server 12.04. Our proxy user name contains in the format: CompanyName\UserName and Password like: $test I tried to set proxy like this: export ...
2
votes
2answers
4k views

Adding NOPASSWD in /etc/sudoers doesn't work

On 14.04 here. I SSHed into my machine, added the following line to /etc/sudoers: myuser ALL=NOPASSWD: ALL And then tried running: sudo mkdir /etc/blah ...and I'm being asked for my password. ...
0
votes
1answer
176 views

kdesudo does not work in Kubuntu 14.04

I recently installed Kubuntu 14.04, after which kdesudo seems to work only half the time. For example: $ kdesudo systemsettings kdesudo(29361) KDESu::KDESuPrivate::KCookie::getXCookie: No X ...
1
vote
1answer
42 views

Re-disabling the root account

In ubuntu by default the su (root) password is not not set. I have set it by using the sudo passwd (see link). But I didn't like it. Can I go back to my original state.
2
votes
3answers
114 views

how to block a command from terminal?

I don't want any users in my machine to use a command in my machine other than root user. The command is given below. "sudo -E su" For security reasons
1
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1answer
57 views

Question about sudo fdisk -1

I've been trying to mount an external HDD to my ubuntu server (14.04) but when I try to use the sudo fdisk -1 function it tells me that its an invalid option, is there any way I can fix this? Or any ...
0
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0answers
39 views

Generally-accepted way of giving a user rwx permissions to /etc

I need a non-root user (say, myuser) to be able to have unbridled, recursive rwx access to /etc and anything underneath it. Hence if I execute, say: mkdir /etc/fizz I shouldn't receive any ...
0
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0answers
16 views

I modified sudoers. All users can not use sudo now. How should I fix this? [duplicate]

I was trying to save times to type password for sudo because one of my scripts had to be randomly repeated quite often. I googled some information about how to bypass typing password and applied to ...
6
votes
7answers
2k views

Is the command `sudo rm /Desktop/filename` safe?

Is this safe to use? sudo rm /Desktop/FILENAME The reason for wanting to use sudo is I can't see the file. I accidentally typed in sudo rm /Desktop/index.html. It didn't find it but could ...
1
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0answers
331 views

How to check if fstab file is correct without sudo?

I updated from saucy to trusy. After that, using sudo segfaulted: fkalter@London ~> sudo whoami [sudo] password for fkalter: YubiKey for `fkalter': [1] 16961 segmentation fault ...
1
vote
2answers
56 views

Shell scripting, [duplicate]

I made a simple update script. Now My question was is it possible to run it automatically by loggin in on the Ubuntu Desktop and automatically provide my password (sudo) for this so I don't have to do ...
0
votes
1answer
120 views

No command '“alias' found

Recently, Ubuntu stopped detecting my android device when I plugged it in with USB, so I was looking to fix the problem. In the process, I found this thread and I followed the steps on it. Only on the ...
0
votes
1answer
49 views

don't have permission or doesn't exist

I'm trying to configure an Oculus rift and I have a configuration script that needs to be executed: GLADOS@deathbox:~/Desktop/OculusSDK/Tools/OculusConfigUtil$ ./OculusConfigUtil_i386 bash: ...
0
votes
0answers
44 views

I don't want other administrator to change my password [duplicate]

I have one administrator account in my system which named as "admin". One more admin account called "test". I don't want test account to reset "admin" account and root account password in my system. ...
2
votes
1answer
444 views

Block a command from sudo user

I don't need an administrator to change my root password. I don't want any sudo user to execute this command: sudo passwd $root I have tried it in the sudoers file using the following command: ...
2
votes
1answer
238 views

How to run backintime as a user

To allow users to run backintime. I am usually running backintime-kde on ubuntu in the following way: sudo su ssh-agent bash backintime-kde4 --config /root/.config/backintime/config --profile-id 1 ...
0
votes
2answers
397 views

How do I enter my sudo password? [duplicate]

I know my sudo password but terminal not to permit me to enter any keyword into
1
vote
1answer
71 views

creating power group

I want to create a group that can run some privileged commands but not all. For example, a power user can access the home files (from one user to another), but it shouldn't be allowed to run apt-get ...
0
votes
0answers
16 views

Password restriction is not working

I have two administrator accounts "magesh" and "test". I don't want "test" user to change my password in the UI. I have restricted it in terminal by giving the following commands in /etc/sudoers ...
-3
votes
1answer
58 views

How can I disable password on termina? [duplicate]

I am trying to install a software through terminal. It asks for my password and i have given the correct password but still it says wrong password. Then i removed all kind off password from my login ...
2
votes
2answers
125 views

can't run sudo from terminal

I'm having an issue where I can't even run sudo from the command line, like for example I need to see or edit a file that required the use of sudo with nano or some other sudo nano /path/to/file But ...
2
votes
1answer
169 views

How can I identify the program that has written information to a log file?

I recently got a message that something had failed to sudo on my Ubuntu laptop. At the time, I don't believe I was running anything that would need sudo. The messages that appeared in ...
0
votes
0answers
23 views

Can't start sublime with gksu [duplicate]

After typing gksu subl or gksudo subl, it asked for my password. But after that, nothing happened. Do note that, with sudo. It works. Why is that and how to fix this?
0
votes
1answer
526 views

I can't add myself(default user) in sudo group in ubuntu [duplicate]

I accidentally changed my primary group using the following command. sudo usermod -g localgroup shantanu #shantanu is my username I interrupted this process as soon as I realize what is happening. ...
2
votes
3answers
240 views

Completely Messed up sudoers file and su Operations

I am in a really bad condition right now.I am jotting down the steps I did to get myself into this situation. My objective was to disable sudo on my machine. I am running Amazon Ec2 Ubuntu 12.04 I ...
0
votes
2answers
68 views

Can't sudo after removing password from administrator account

I'm using Ubuntu 13.10 64bit. In the "System Settings"->"User Accounts" I chose the "Login without a password". This was my only administrator account, so according to this answer, I encountered bug ...
0
votes
1answer
417 views

Can't get nautilus to go sudo with gksu [duplicate]

I was recently reading some linux articles and stumbled on a faster way to do sudo tasks the gui way by installing a package called gksu-nautilus which allows me perform tasks with root permissions ...
0
votes
2answers
273 views

gedit problem when open by terminal

when I open terminal and run the command sudo gedit first.cpp it shows this error in terminal: (gedit:24589): IBUS-WARNING **: The owner of /home/bonny/.config/ibus/bus is not root! (gedit:24589): ...
0
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0answers
6 views

Delete files permanently [duplicate]

I would like to know how to permanently delete files so they cannot be recovered. I appreciate your help.
0
votes
1answer
108 views

Is there any way to change the "Invalid password, please try again' text?

I wanted to change the "Invalid password, please try again' text to "PERMISSION DENIED... and... YOU DIDN'T SAY THE MAGIC WORD!" Is this even possible?