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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1answer
9 views

Archivematica install and sudo commands

I have Ubuntu 14.04 LTS installed on a Win 7 64-bit machine via VirtualBox 5.0.14. Now I want to install a Ubuntu-based software suite called Archivematica. The instructions begin this way: Add the ...
0
votes
1answer
42 views

How safe is it to use “sudo -i”

I have few applications which I need to run on root permission. Am pretty new to Ubuntu, the kind of shortcut I do to gain root access was that I open a new terminal with sudo -i and will launch my ...
6
votes
0answers
295 views

Why do I need sudo to reboot from the command line? [duplicate]

When I enter reboot on the command line, I get: reboot: Need to be root and asked the root / sudo password. When I reboot via the gui I can do that without my sudo password. Why is that? What's ...
-2
votes
1answer
23 views

Can't run GUI applications as root

I know i messed something up, i just don't know what, how or when. i used to be able to run gksudo (gui application) or sudo (gui application) and then i couldn't anymore - I've torn the whole ...
-1
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0answers
15 views

Problemas getting update

im kind of new with ubuntu and im getting this message every time i try to update with sudo apt-get update: what i get in the terminal Please someone who can help me?
0
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0answers
9 views

Ubuntu does not boot after sudoers error [on hold]

I was doing some investigation around this. I've used the command visudo to access the sudoers file, just to investigate the matter. The PC is not critical, so I haven't taken any back up of the file. ...
1
vote
1answer
44 views

Sudo execute command in Pythonscript

I want to sudo a command from a pythonscript without hardcoding my password in it. The Pythonscript is part of a webservice on Apache2. Since it is part of a webservice, asking the user each time for ...
0
votes
0answers
27 views

hplip installation stuck at password checking on lubuntu 15.10

I was trying to install hplip 3.15.11 on Lubuntu 15.10 using xTerm or uxTerm as explained and shown in the official how-to (hplip installation how-to), but when I'm asked for the sudoer's password, I ...
1
vote
1answer
33 views

How to autostart node forever and use spawn() as sudo on Ubuntu?

My app periodically spawns a CasperJS scraper: spawn(CASPER_PATH, [SCRIPTS_PATH + fileName, '--ssl-protocol=any', '--user='+user, '--scrapeId='+scrapeId, '--pass='+pass], { ...
0
votes
0answers
12 views

Sudo, nohup and spewing detached processes

I have a jar file that I need to routinely kick start from the terminal, and needs to be run as root. I'd also like to leave that terminal open for use, so I'm using this bash script: $ cat ...
2
votes
1answer
31 views

Why to use bash in executing script? [duplicate]

In a former question, I was suggested to execute: sudo bash start-dfs.sh why not sudo start-dfs.sh ? I mean, what difference does bash makes?
0
votes
1answer
16 views

Multiple commands in sudoers file results in syntax error

It seems to be possible to add multiple commands in the sudoers file in the following format: john ALL=(ALL:ALL) NOPASSWD: /command1, /command2 What I have used in the sudoers file is: ...
0
votes
2answers
18 views

How to disallow access to folder even for admins?

I'd like to create a new user account and allow them to do maintenance on the server, i.e. install and configure new software, restart the server, manage other users etc... However, I'd like to ...
0
votes
0answers
20 views

aterm unresponsive unless run with sudo

I've just installed Ubuntu on my laptop. I installed aterm by typing sudo apt-get aterm Now if I start aterm by typing aterm The resulting console is unresponsive to typing (no letters show up ...
3
votes
2answers
74 views

Help me win this war!

History: The map: I have a dual-booted laptop, Windows 7 alongside Ubuntu 14.04. For Ubuntu, I have a separate partition, which stores my data. The enemy: sudo chown -R hadoopuser /, which literally ...
0
votes
0answers
22 views

Boot from USB/CD without using sudo

I screwed up big time. I did sudo chmod -R 777 /usr without pausing to think about consequences. Well, the consequences are: 1) I cannot sudo or pkexec. 2) Ubuntu is not detecting boot cd or usb. ...
1
vote
0answers
19 views

User automatically getting added back to sudoers file

I am trying to remove an user from sudoers. However, the user is getting added back automatically. Steps followed - Switched to root user (su - root....) visudo Removed lines with the user ...
3
votes
2answers
162 views

sudo: ./abc.sh: command not found

Commands typed in terminal: chmod 777 abc.sh sudo ./abc.sh Every shell program is giving the same error: .sh: command not found Including this simple abc.sh program: #!/bin/bash # My first ...
0
votes
1answer
36 views

sudo ssh-add /root/.ssh/id_rsa return error

I m trying to save ssh authentication with the command ssh-add for sudo usage: linux$ sudo ssh-add /root/.ssh/id_rsa Could not open a connection to your authentication agent. but as indicated it ...
2
votes
3answers
385 views

Isn't sudo extremely unsecure? [duplicate]

It seems any program ran soon enough after sudo in the same terminal can run any sudo command it pleases. Proof: Execute sudo ls in a terminal . Then run this program (compiled of course) in the same ...
-1
votes
0answers
6 views

runnit and git-daemon-run error while sudo and grunt installing error

I have encountered this problem, earlier also, the problem is whenever i run something using sudo, after the completeion of the process i get this error. This time i got this error while i was ...
1
vote
1answer
45 views

Sublime Text doesn't run with `sudo` without `-E`

I guess I made some damage to my settings because now I'm unable to run Sublime Text as root without -E: subl //works sudo subl //doesn't work (no errors, just silence) sudo -E subl //works. How ...
0
votes
0answers
7 views

Help with installation after HDD SATA replacement in laptop (Toshiba AMD A6)

Will this fix my installation issue, if I just go to 15.10. I was trying OEM, sudo clean, update, install, kodi, --fix, fix-missing...nothings works...also I have checked BIOS and the new SATA HDD is ...
3
votes
1answer
52 views

I ran these commands and want to learn how to reverse them

Please don't scorch me i'm still novice and only seeking help. I ran the following commands: echo "deb https://pkg.tox.chat/debian nightly release" sudo tee /etc/apt/sources.list.d/tox.list wget ...
0
votes
0answers
7 views

download cuda library with dpgk on Ubuntu 14.04

i need to install cuda library on a server, where i dont hwve root access I use this command: dpkg -i --force-not-root -- root=$HOME cuda-repo-ubuntu1404_7.5-18_amd64.deb but i get the error : ...
-1
votes
1answer
41 views

Problem with sudo apt-get install (dpkg was interrupted, you must manually run 'sudo dpkg --configure -a' to correct the problem) [duplicate]

I think I used something involving dpkg but I am not able to recall what. After that when I need to do some sudo-apt get or even sudo-apt get update I am facing the following ...
0
votes
2answers
92 views

`sudo apt-get install` won't install anything [duplicate]

When I run sudo apt-get install I get the message:
0
votes
2answers
39 views

I cannot download software or use `sudo`

This is what happens when i use sudo. Plus I can't update Ubuntu and I can't open the Software Center.
1
vote
1answer
52 views

Slow hostname lookup: curl slow, sudo slow, browser slow

my problem is similar to other slow host name lookup issues, but I failed to find a working solution. The main effects are a slow sudo command a very slow DNS resolution in all browsers. I guess that ...
0
votes
0answers
18 views

how to enter password for sudo while using ubuntu in virtual box?

I cant enter my password while using sudo in virtual box (Version 5.0.10 r104061) with Ubuntu OS (14.04). How to enter password?
4
votes
1answer
39 views

Why does alias in /etc/bash.bashrc not apply to sudo?

I've added the line alias ll='ls -l' to the /etc/bash.bashrc. After a restart, the alias ll from that file affects me, which I checked by commenting out the corresponding alias in my ~/.bashrc ...
-1
votes
0answers
38 views

how to run sudo command by password in .sh file?

can i run sudo command by password? This is my .sh file : sudo service uwsgi stop nohup uwsgi --socket 127.0.0.1:4242 --module wsgi --callab application & sudo service uwsgi start
0
votes
2answers
54 views

SSH Key with user and root with shell script

Is it possible to ssh login to a server as a user with shell access and then change to root user both with the help of ssh key using a bash script?
1
vote
1answer
71 views

How can I make running a command depend on the input of a correct password (Tkinter GUI)?

I created a small GUI in Tkinter/python: import Tkinter import tkMessageBox import os top = Tkinter.Tk() top.geometry("400x250") def root_login(): os.system("gksudo su && sudo su") ...
0
votes
2answers
47 views

I entered “sudo chmod 770 /” on terminal. Is it fixable?

I was trying to deny permissions to access the root folder to all non sudoers, and had the (NOT) brilliant idea to run sudo chmod 770 /. Now I get permission denied for all commands. I am running ...
0
votes
3answers
58 views

I accidentally own /etc/ on user ubuntu in aws ec2 [duplicate]

I accidentally own /etc/ on user Ubuntu in aws ec2 I owned /etc/ and now this message comes up whenever I used sudo: sudo: /etc/sudoers is owned by uid 1000, should be 0 sudo: no valid sudoers ...
17
votes
3answers
861 views

How can I force sudo to always ask for a password after waking from suspend?

Say I execute a command with sudo, then if I use sudo within the next 15/5 minutes (not sure how long it remembers me for) it won't prompt me for a password. It will only prompt me again if I haven't ...
0
votes
0answers
10 views

Permission denied error while using sudo or su? [duplicate]

I'm trying to fix my screen brightness problem, and I have checked some answers given on this site. I found out that I may have to use some command like this: ls -la ...
0
votes
0answers
26 views

password not working, memery all used up. helpme

I'm completely clueless about ubuntu and computers really. I was directed towards ubuntu by a friend and now im in big trouble really. My laptop started acting funny on thursday. It used up all ...
0
votes
1answer
24 views

How to prevent graphical applications from being started with sudo

I am persuaded that I should never use sudo to start a graphical application. How can I prevent it from ever happening? Getting more sleep might be the correct solution but I want a better one.
1
vote
1answer
30 views

open new tab as same user?

I often use sudo to administer other users on my system. How can I open a new tab in gnome-terminal with the same user name? Usually, when I open a new tab, I need to run sudo su THEUSER again. ...
0
votes
0answers
21 views

`sudo su` doesn't ask for password [duplicate]

I typed sudo su in the terminal, and it changed to root without asking for a password. I also tried typing sudo apt-get upgrade and it didn't ask for a password either. When I installed Unity (1 hr ...
1
vote
1answer
31 views

Open a file with gedit over ssh

I am trying to display a file with gedit, from my home, when connected to ssh in a machine of my uni. However, something is wrong with permissions. gsamaras@gsamaras:~$ ssh -X user@machine.gr ...
0
votes
0answers
32 views

who to install glup globally in current project

Trying install Gulp globally in the project file $ npm install --global gulp $ npm install --save-dev gulp but through this error message: npm http GET https://registry.npmjs.org/gulp ...
1
vote
0answers
19 views

Ubuntu 14.04 sudo: unable to resolve host Cricketpunk [duplicate]

i am new to ubuntu and recently tried changing my hostname and have probably messed up something,and have trouble fixing it. Whenever i give command like get sdu sudo apt-get install g++ ...
0
votes
2answers
70 views

Opera-stable seems to lack premissions/privileges in 14.04

So I installed the official version of Opera named "opera-stable" in the Ubuntu Software Center. When I run it from launcher, it launches twice and displays a message (Translated to English by ...
3
votes
1answer
34 views

stderr of terminal in red, even with sudo

I am trying to make a working example for logrotate, and to help me through this I figured it was a good idea to turn stderr to red. Through some reading, I came upon stderred, which I meant to ...
0
votes
1answer
33 views

How to get email for unauthorized sudo attempts?

As per this question, unauthorized attempts to sudo are saved in /var/log/auth.log and by default, a mail is sent to /dev/null. Is there any way to prevent that from happening and send the mail to an ...
3
votes
1answer
42 views

Switching User From A sudoer to Bash to Root

On someone's ubuntu VPS I created a user, added them to sudo and logged in. Figuring I didn't need the root password anymore, I got rid of it. Then for whatever reason I felt I needed to go back to ...
0
votes
1answer
45 views

Sudo doesn't recognize correct password [duplicate]

I tried changing my sudoers.d file to remove authentication from my pc by typing %admin ALL=(ALL) NOPASSWD:ALL without using visudo. However, after doing that anywhere where the sudo command is used, ...