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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427 views

Why does hd-idle need sudo to run in rc.local?

I have added a command that runs "hd-idle". It seems to need to run as root as otherwise it does not spin down the drives as instructed. Behavior seems to be the same when executed manually or via ...
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22 views

Is there any way to add myself to the sudo's file, again?

Accidentally, I must have removed myself from the sudo's file in Ubuntu 15.04. This has resulted in that I cannot use tools like chown or alike. The OS is running on my laptop, and I'm the only user ...
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22 views

Is there danger involved in running Firefox as sudo?

Is there danger involved in running Firefox as sudo? I do this because I sometimes use Firefox to browse my local drives, and my primary drive is encrypted. I am using Xubuntu 14.04. Thank you.
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15 views

x11vnc - How can I allow only certain users to have a VNC session

On my server, all but port 22 (ssh) are closed. VNC is possible, but only with a VNC-over-ssh method. Right now x11vnc is started -forever at boot. With the right ssh tunnel, anybody can initiate a ...
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26 views

How to whitelist commands to certain users in Ubuntu

I have heard that there is a way to whitelist certain commands to users in Ubuntu. Such as allowing a user to run rm but not rm -r or rm -f. Hope someone can help.
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64 views

find only works with sudo?

I've been searching for a while now and I can't find an awnswer to this. Let's assume I created this dir /Desktop/things and I want to find it using find. If I do find . -name things -type d ( and ...
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47 views

Issue when running from terminal

I've tried running GParted from the terminal but after requesting for my password nothing happened. Now I'm trying to install Eclipse following the instructions here but I'm stuck on Step 4. When I ...
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29 views

how can i detect the sound card as i am not a sudo user?

i have to detect sound card in my laptop,but i am not a sudo user so i cannot execute any sudo commands. i am also unable to detect the soundcard,thus i don't know the way of solving this problem. ...
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27 views

Disable Root — what password will it ask for when I do Sudo

My web-host recommends disabling root. I've created a non-root-user with a non-root-user's-password in the sudo group. So far so good. Here's my question. Usually, when I do sudo, Ubuntu asks for ...
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197 views

Recurrent segmentation fault errors after upgrade to 15.04

After I upgraded from Ubuntu 14.10 to Ubuntu 15.04, on an amd64 system, many applications that I run force-close because of a segmentation fault. I have tracked down the errors with dmesg and I can ...
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60 views

Can't change password Ubuntu 14.04 LTS after try many ways

I'm suffering with a suck problem. When I installed Ubuntu 14.04, I created a password but seem I tick start without log in. After few day using normally, I show a pop-up ask me to authentication for ...
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95 views

sudo permission errors or “command not found” errors when working on a hybrid SSD/HDD setup? (specific example: MATLAB installer)

Since my SSD is small, I still relegate it to only holding the OS. So, during Ubuntu install, I created a 60 GB partition for / on my SSD, and a 500 GB partition for /home on my HDD. However, now I ...
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36 views

How to build libgee (“undefined reference to 'g_get_num_processors'”)?

I am not able to install libgee. When I tried running on the command line sudo apt-get install libgee it said libgee is already in its latest version, when it is actually is not in its latest ...
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49 views

Allow sudo in default guest account

I am trying to run Microsoft Office for some public workstations. I have added the following entry to my sudoers file: %win ALL=(windows) NOPASSWD: /usr/share/playonlinux/ /home/windows/.PlayOnLinux ...
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39 views

sudo apt-get update cannot fetch the server why?

I use Ubuntu 14.04.2 LTS (GNU/Linux 3.14.33-ti-r50 armv7l) in my device.When I try sudo apt-get update I see this error below: Err http://ports.ubuntu.com trusty InRelease W: Failed to fetch ...
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36 views

Ubuntu server wont let me change to root or add my default user to sudoers

So I'm trying to learn how to set up a headless server and I got everything installed I made a root password and that wont work with su and then I try to sudo with my default log in and it wont let me ...
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22 views

Error when attempting to update Ubuntu 14.04

I am using Ubuntu 14.04.When I attempt to update: sudo apt-get install -f I see this error: kg-deb: error: subprocess paste was killed by signal (Broken pipe) Examining /etc/kernel/postrm.d . ...
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28 views

How to change a read-only file System

My roommates 2011 Macbook Pro died today. I made a flashbootable version of ubuntu and booted from it on his mac. I can move around his drive's directories, and while trying to solve this problem I ...
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130 views

XDG_Runtime_dir Variable not set

Per this link: http://superuser.com/questions/269407/apt-get-behind-proxy-on-virtualbox-ubuntu/506066#506066 I update my ~/.bashrc file with export http_proxy="<my proxy>" export ...
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20 views

How does the system interprets sudoers file when there are two lines for the same user?

I have a system with a user already added to sudoers file with username ALL=(ALL:ALL) ALL Now I want to allow username to run a single script without asking for sudo password (cron job). This ...
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23 views

Can i use “gksu” to became root for CLI operation?

I don't care if this is unsafe, because i'm only doing it as a programming exercise, but that's what i want to do: I want to create a C program that, with the "system" command, will call dpkg and ...
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73 views

sudo : tty not found

This has been a very recent problem. Every time I log into my user session, a dialog box pops up saying: sudo: tty not found and no askpass program specified It also says that the user session is ...
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27 views

How is the UID of a user passed to sudo, eg in a “sudo mount…” command?

When I runsudo mount -t nfs -o udp,vers=3,soft,intr,rsize=8192,wsize=8192 nas:/nfs/shares/kevin /mnt/nas/ I know that to be successful my UID must match the UID of the owner of the exported filesystem ...
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43 views

User doesn't get gksu dialog so apps just fail

I am using Ubuntu with Xfce on Android in a chroot (via Linux Deploy). When I try to run some software that requires admin/root access the GUI does not prompt me for the admin password like it does ...
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205 views

Command “sudo” not found, unable to locate package “sudo”

So i just baught vps server Ubuntu 14.04.1 GNU/Linux. I tried to install graphical environment with command: sudo apt-get update it said: -bash :sudo : command not found then i tried install ...
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94 views

Did not use SHIFT-DELETE nor rm but files on Desktop are deleted

I have not used shift-delete nor rm but files on Desktop are deleted in ubuntu 14.04 LTS. My ~/.bash_history file also has no log of using rm command. However I have used sudo modprobe hfsplus. Is ...
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84 views

How to install applications through a standard user account with blank password

In standard user account with no password specified, I want to use apt-get which subsequently requires the password of the current account. (I have the administrator password): user@System:~$ sudo ...
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58 views

Downloading KDM Theme in Kubuntu 14.04

Kubuntu blocks KDM from accessing downloaded login screens without "sudo systemsettings" root privilege command in terminal, how do I make a permanent root privilege for kdm? I know in Ubuntu this is ...
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47 views

Software Center crashes every time, even after reinstallation

So my Ubuntu Software Center has been crashing every time I run it. I've tried many attempts to remove it and reinstall it using sudo apt-get, but I have had no success getting it to work. I've even ...
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38 views

Can't use sudo; permission is denied

The /usr directory permissions are drwxrwxr-- and I cannot use sudo command, because permission is denied. What are my options?
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119 views

ubuntu 12.04 booting freezing on “Booting system without full network configuration…”

I have Asus laptop with Ubuntu 12.04 on it, the problem start after I change the permission of /etc which result that I can't execute the sudo commands when I tried to change the permission I got this ...
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35 views

sudo password 14.04 after some maintenance

After an update and using system janitor I no longer have syncing password for sudo. initial ubuntu login works but screen lock password for admin account no longer provide sudo in terminal, system ...
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13 views

How to re-enable the only admin

I have one account on my Ubuntu and it's the admin but I accidentally disabled it. How do I un-disable it?
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51 views

What is this fprint log doing when I sudo?

A while ago I was trying to get my fingerprint reader to work, compiling an experimental version of fprint. Since then, every time I sudo, in stead of asking for my password I get an fprint log. ...
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37 views

'sudo' is not known after moonlight install

yesterday I tried install moonlight (silverlight) and something going wrong. Now i have problem with update and Ubuntu software center. E: Typ "sudo" is not known in line 1 list sources ...
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374 views

unable to resolve host address in ubuntu 14.04 with sudo

im trying the following: wget https://pypi.python.org/simple/ and its working fine. But if try the same with sudo as follows, its giving me an error: sudo wget https://pypi.python.org/simple/ ...
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21 views

IAM role in ubuntu

I am facing 'RepositoryException' when I tried to host snapshot data of elastic search data from a Windows to a Linux machine. I think it's due to user permissions. Browsing this link to github, i'm ...
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29 views

User was deleted after reboot

Unsolved mystery - I was given a coworker's Ubuntu 12.04.1 LTS machine and set up my own (sudo/admin) user on there from the command line. I switched to my user and confirmed everything was okay using ...
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79 views

How to leave root without exit command or ctrl+D

I'm logged in as root to do some stuff, and i have Tmux open. The trouble is, when I type 'exit' to leave root, it instead closes Tmux, because they use the same command. Is there a way to switch back ...
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381 views

Can only commit changes to dconf as root

This is all over ssh. If I run gedit I get lots of dconf errors (gedit:35765): dconf-WARNING **: failed to commit changes to dconf: Could not connect: Connection refused If I run sudo gedit I get ...
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37 views

Whitelist a program as admin

Everytime I run WICD (Network Manager) it requires my password for permission. I'm not against Ubuntu asking for passwords in general but everytime I log in is a little excessive. Is there a way to ...
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139 views

When running a shell script using sudo I am getting no tty present and no askpass program specified

I am trying to build a project using jenkins. The project is based on node. I wrote a shell script that has only npm install command. I am running the shell script from jenkins as sh ...
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338 views

My ubuntu is broken, error with gksu!

I keep getting this when is use gksu nautilus: shonn@shonn-Satellite-A505:~$ gksu nautilus Nautilus-Share-Message: Called "net usershare info" but it failed: 'net usershare' returned error 255: net ...
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42 views

Questions about checking for badblocks on a almost-definate bad HDD, I am new to Ubuntu

Heres the deal, I'm on an Asus x53sv-mh71, it's my friend's laptop. He dropped it about a month ago, and it stopped working about a week afterward. Wouldn't boot past the "starting windows" logo. I ...
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39 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 ? :( ...
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98 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 ...
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60 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 ...
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19 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 ...
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67 views

Graphical pkexec require username and password

I am wondering if there is a way to have the graphical authentication part of pkexec ask for a username as well as a password instead of just a password. The computer I am trying to get set up is on ...
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93 views

Install glogg package with dpkg command and no root privileges

I'm trying to install a package called glogg without root privileges. I have successfully downloaded the .deb file (to $HOME/packages/glogg). But when I run dpkg -i --force-not-root ...