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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0
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2answers
364 views

sudo password for terminal [duplicate]

I'm quite new to Linux. I am currently using Ubuntu on my HP Celeron laptop. I've been having trouble with my wifi on my laptop. I've tried pressing the button to activate my wifi but it doesn't ...
1
vote
1answer
82 views

How to make sudo use a separate password?

Using Ubuntu 14.04, I have 2 accounts: Account A (first one set up) with Password 1 Account B (second set up) with Password 2, when updating software in Account B, I use Password 1 to authenticate. ...
0
votes
1answer
73 views

How does sudo!! work on Ubuntu

I love the idea behind the command: sudo!! but it doesn't really work on ubuntu (14.04 and earlier). When I type apt-get install htop It will obviously tells me to run the command as super ...
0
votes
1answer
244 views

Peerguardian Error

I installed PeerGuardian (thanks to a lot of help) and I get an Error massage saying : Could not use either kdesu(do) or gksu(do) to execute the command requested. You can set the path of the one you ...
-1
votes
1answer
80 views

Can't login as root [duplicate]

My user is removed from the sudoers file. I don't how it got removed because i only have access to my machine. I tried accessing the sudoers file but it mentions my username and asks the password for ...
1
vote
1answer
95 views

/etc/sudoers file problem understanding

According to the documentation, modifications of this file may enables local users to execute sudo commands on remote machines: user1 192.168.1.14=(user2:group1) ALL According to what I read, ...
1
vote
0answers
400 views

Cannot chown or chmod using sudo anymore

I was trying to make an adjustment to the /etc/sudoers file, and I accidentally corrupted it. I restored it via the grub and using the Ubuntu 14.04 default. But now it seems I can change ownership ...
2
votes
1answer
133 views

Ubuntu no longer prompts for root privilege (but doesn't give it either)

So on 14.04 LTS I was playing around with some settings to solve another problem, and somehow managed to screw things up and now Ubuntu no longer asks for root privileges before trying to perform ...
1
vote
1answer
59 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
votes
0answers
34 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
votes
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
125 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
votes
1answer
99 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
vote
1answer
52 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
90 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. ...
1
vote
1answer
2k 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
votes
4answers
325 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
448 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
104 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
195 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
223 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
89 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
94 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
27 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
207 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
votes
1answer
165 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
vote
0answers
32 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
116 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
7k 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
250 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
50 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
165 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
vote
1answer
74 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
votes
0answers
50 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
votes
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
vote
0answers
497 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
60 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
233 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
63 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
732 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
319 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
491 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
88 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
66 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
282 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
210 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 ...