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
14 views

Why can I not add more secondary groups?

I make a group called "teamspeak" and I would then like to be a part of that group, so I use sudo usermod -a -G teamspeak xdrosenheim as it is explained here and in the man usermod. I then do id ...
-4
votes
0answers
32 views

OK 40th or so unbuntu install!! Why sudo apt-get install fail2ban not work?

r-4-w@R-A-R:~$ sudo apt-get install gufw [sudo] password for r-4-w: Reading package lists... Done Building dependency tree Reading state information... Done E: Unable to locate package gufw ...
0
votes
1answer
9 views

Write Nginx Config as Unprivileged User

I have a deployment script that gets executed by an unprivileged deploy user. To fully automate things, though, I have to write a web server configuration file to /etc/nginx/sites-available and ...
1
vote
1answer
18 views

Program accessible only to super user

I installed TeXLive through the .iso file provided in the website. To check the installation I tried tex --version and it returned something like The program 'tex' is currently not installed. You can ...
2
votes
1answer
18 views

“apt-get install wget” installs wget with 000 permissions

I need to install wget and so I used sudo apt-get install wget, and it did, in fact, install it to /usr/bin/wget, but the permissions are all wrong (other lines for context): -rwxr-xr-x 1 root ...
2
votes
1answer
20 views

Can't edit plugins/sudoers/ins_*.h

I am trying to edit the list of insults in Ubuntu which, as described here, are located in plugins/sudoers/ins_*.h. I have tried: sudo visudo -f /plugins/sudoers/ins_*.h which should edit that ...
0
votes
1answer
24 views

can't type my password in terminal [duplicate]

I am trying to install torrent, so I typed some commands like: sudo apt-get install libssl0.9.8:i386 after this command: [sudo] password for shiddhant: here is the problem comes, the cursor was ...
0
votes
2answers
33 views

No sudo or root access anymore [duplicate]

I'm afraid I locked myself out of the sudo/root options. The one account that had sudo rights now reports that it doesn't have these anymore. How can I restore this? Do I need to use a live stick?
1
vote
1answer
365 views

E: Type 'sudo' is not known on line 1 in source list /etc/apt/sources.list.d/mono-xamarin.list

I don't know what caused the following to happen: The content of /etc/apt/sources-list.d/mono-xamarin.list is sudo apt-get update.
0
votes
0answers
21 views

How to run an alias command with sudo [duplicate]

I created an alias called runmc that allows me to start up a java program. But I noticed that when I type in "sudo runmc" (It needs root access to work properly.), it will display "runmc: command not ...
63
votes
1answer
73k views

How do I run specific sudo commands without a password?

On one particular machine I often need to run sudo commands every now n then. I am fine with entering password on sudo in most of the cases. However there are three sudo commands I want to run ...
1
vote
2answers
9k views

Unable to install xampp in ubuntu 13.04

I am installing xampp in ubuntu 13.04, but while installing the xampp.. when i try to extract the file .. it shows the following message sudo tar xvfz xampp-linux-1.8.1.tar.gz -C ...
0
votes
2answers
119 views

GTK apps not respecting Kubuntu's oxygen-gtk theme when executed as sudo

I am using Kubuntu 14.10 and it's working quite well so far, but my problem is pretty much what it's stated in the title, when executing a GTK app that requires sudo privileges, such as Synaptic ...
15
votes
4answers
4k views

What is the functional difference between sudo su and sudo -i?

Why is one preferred over the other in this example? sudo su echo "options iwlwifi 11n_disable=1" >> /etc/modprobe.d/iwlwifi.conf exit Please provide links to Ubuntu documentation.
0
votes
0answers
18 views

We use sudo so i assume there is no SU passwoird or is it random? How tough is it if it exists? [duplicate]

We use sudo su. I assume there is no root password and is default? How tough is it if password exists?
1
vote
1answer
32 views

how to create admin account as a duplicate root account for telnet and disable root login over network?

I've been searching for the answer to this but all I find is "It doesn't work". I am a new, yes. I am still a student and i still learn about it. I am happy to break my OS and format it many times if ...
1
vote
1answer
48 views

Ubuntu Sudo Command not working

I mistakenly excuted: $ sudo chmod -R 777 /* I can not run sudo any more: I have tried changing the permissions with recovery mode but when I log in back into my account sudo is not still working. ...
0
votes
1answer
29 views

LightDM does not ask for login password

I have an auto-logged in non-sudo user called "screen". I have a passwordless sudo but login-protected user called "support". I'm pretty sure this was working fine before, somehow maybe the latest ...
0
votes
1answer
33 views

Problem with sudo via ssh

I'm using the following script to execute a update script on a certain number of servers in my network. Here is the part, which I think that is relevant. ### Actual Work ### if [[ $manual == 1 ]]; ...
0
votes
1answer
27 views

How is the default user given sudo access without being listed in sudoers?

I have a question about command sudo. Basically, you know, sudo allows any permitted users who enrolled in the /etc/sudoers to perform some commands specified in it. At this point, I wonder how my ...
0
votes
0answers
10 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 ...
0
votes
1answer
62 views

What is the reason for /etc/sudoers near line 23 error?

I fix that /etc/sudoers near line 23 error by using pkexec visudo command. But I don't know the reason. Can any one tell me the reason? And how to prevent these type of error in future? My File Like ...
19
votes
3answers
24k views

Shutdown from terminal without entering password?

I have desktop edition of Ubuntu. I like the Terminal so that that I prefer to shutdown my computer with the shutdown command. However when I type shutdown now it prompts me to enter my password.Is ...
0
votes
1answer
27 views

Shutdown privileges problem

I have found that when I click the shutdown button when logged into a normal user account that once it has terminated all running processes and it says something about a modem shutting down, it can ...
1
vote
2answers
33 views

Undo the “sudo” within a script [duplicate]

Is there any way to undo the sudo within the script? like.. sudo ./script.sh commands 1,2,3,4,5 with sudo rights commands 6,7,8,9 without sudo rights
0
votes
0answers
29 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 ...
1
vote
1answer
35 views

Fstab doesn't update permissions or ownership rules [duplicate]

I mount a FAT32 filesystem (because it needs to be compatible with windows) that has an SVN repository on it. It is mounted with owners root:plugdev and permissions rwxrwx--- . My user account is a ...
4
votes
1answer
11k views

sudo: /usr/lib/sudo/sudoers.so must be owned by uid 0

Whenever I try to do anything at all that requires my password it returns this: u7ur7l3@ubuntu:~$ sudo sudo: /usr/lib/sudo/sudoers.so must be owned by uid 0 sudo: fatal error, unable to load plugins ...
2
votes
2answers
5k views

“EggSMClient-WARNING **: Failed to connect to the session manager: None of the authentication protocols specified are supported”

I am on ubuntu 12.10. Every time that I try to open gedit on root this appears: (gedit:3254): EggSMClient-WARNING **: Failed to connect to the session manager: None of the authentication protocols ...
0
votes
0answers
19 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 ...
2
votes
1answer
33 views

Filemanager that asks for sudo rights when it needs it [duplicate]

On my Mac I can copy files using the Finder, and if the destination folder has a different owner, a window pops up and asks for credentials. On Ubuntu or Linux Mint I don't see anything like that. ...
0
votes
1answer
36 views

Power management failure and /usr/bin/sudo must be owned by uid 0 and have the setuid bit set

A few days age I purchased a new laptop, Asus X751MD, and I installed the 64 bit Kubuntu version of 14.10. After installing some programs and restarting the computer, I got the power management ...
1
vote
0answers
62 views

sudo useradd: cannot lock /etc/passwd; try again later (no lock files)

When doing this on Ubuntu server 14.04: camilstaps@localhost:~$ sudo useradd --home-dir /var/www/xxx.camilstaps.nl/ --no-create-home --root /var/www/xxx.camilstaps.nl/ --shell /bin/sh xxx I'm ...
0
votes
1answer
3k views

Starting and Shutting down LAMPP with sudo access

I have read somewhere on net that we can install LAMPP (apachefriends.org/en/xampp-linux.html) in such a way that any user can start and/or stop LAMPP server using nobody Is is possible? Let me know ...
0
votes
1answer
82 views

How do I get into recovery mode on ubuntu 14.04 if the option not showing

I just boot up my laptop then run the sudo apt-get update command, but there's an error says [username] is not in the sudoers file. This incident will be reported. .so I search the google for ...
0
votes
1answer
33 views

New to Ubuntu! Help?

Good Morning Everyone, I have taken the leap to Linux from a life of Windows and OS X. And I'm stuck! I am trying to install Sense from the Open University and it looks like I have to follow a ...
0
votes
0answers
21 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 ...
43
votes
3answers
11k views

Aliases not available when using sudo

I was playing around with aliases today and I noticed that aliases don't seem to be available whilst using sudo: danny@kaon:~$ alias alias egrep='egrep --color=auto' alias fgrep='fgrep --color=auto' ...
1
vote
1answer
19 views

Error :invalid protocol while installing phonegap

pramod@pramod-Inspiron-5520:~$ sudo npm install -g phonegap npm ERR! Error: Invalid protocol npm ERR! at Request.init (/usr/lib/nodejs/request/index.js:361:51) npm ERR! at new Request ...
7
votes
5answers
16k views

How do I fix a “E: The method driver /usr/lib/apt/methods/http could not be found.” error?

I tried updating my packages from the terminal and this is what I got: $ sudo apt-get update E: The method driver /usr/lib/apt/methods/http could not be found. E: The method driver ...
9
votes
2answers
122 views

Run only parts of a script as sudo, entering password only once

I am writing a script (actually a combination of scripts and makefile) that installs external dependencies: some apt-get commands, some git cloning, building, installing, adding users to groups, ... ...
0
votes
1answer
29 views

problem with software center 12.04

I have been using 12.04 in dell vostro since a year. It was working properly but suddenly the Ubuntu Software Center has started hanging. Now it doesn't open. And every time I try to open it, I have ...
1
vote
4answers
51 views

How do I check if my root password (login) is disabled?

I accidentally enabled(set) my root password (by default it is locked), and now I want to "undo" it. I used both commands sudo usermod -p '!' root and sudo passwd -dl root in that order. How do ...
2
votes
1answer
54 views

Cannot Run Rscript from PHP but it runs perfect from terminal

I'm new to Ubuntu I'm trying to execute an Rscript in PHP using exec. However it doesnt run. When I run it from the terminal it executes perfectly. This is the code I run from commandline: ...
0
votes
1answer
36 views

A file (/usr/bin/sudo) highlighted with red in Terminal

Anyone knows what it means when '/usr/bin/sudo' is highlighted with red in the terminal? This wasn't like this a few minutes ago Apologies if this is a dumb question, but it's been a while I had to ...
0
votes
1answer
57 views

sudo must be owned by uid 0 and have the setuid bit set

I am trying to run the following command: d@d-Aspire-M5 ~ $ echo "My username is: `whoami`" My username is: d d@d-Aspire-M5 ~ $ sudo chown -R `whoami` /usr/local/lib/node_modules sudo: /usr/bin/sudo ...
5
votes
4answers
18k views

Sudo doesn't work

I edited my sudoers file in /etc and after that I can't use sudo anymore. I get this whenever I issue the command: sudo: >>> /etc/sudoers: syntax error near line 30 <<< sudo: parse ...
0
votes
1answer
62 views

bash- Control-C behavior (^C) / gksudo vs sudo

This is about how the ctrl+c key press has a different effect when performed to a gksudo instance as opposed to a sudo instance. I executed the following using gksudo to read an installation failure ...
0
votes
1answer
39 views

How do I add a command permission to specific user to do it without password? [duplicate]

I want to give permission to a user to do shutdown command without password. Shutdown command need root privileges. If I give NOPASSWD in /etc/sudoers, the user can do all command that need root ...
0
votes
1answer
50 views

Reset default permissions for /etc [duplicate]

I did a silly thing. I changed the permissions of my /etc folder using sudo chmod -R ugo+rw /etc After that I did some damage control using the command pkexec chmod 755 /etc Then I was able to ...