sudo - Execute a command with superuser privileges.

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0answers
6 views

mdadm inconsistencies when run with sudo

I am building an appliance that has an WebOS on top of. WebOS is being hosted with Apache running as http:http. Since WebOS needs access to OS (root), sudoers are set up - to allow http ALL with ...
35
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5answers
3k views

Becoming root from inside Vim

Sometimes I start editing configuration files in /etc using Vim, but forget to use sudo to start Vim. The inevitable result then is that after finishing my edits I encounter the dreaded notice that I ...
4
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3answers
645 views

Why is the 'sudo' password different than the 'su root' password

On my personal machine, I often type sudo in front of certain commands in order to accomplish administrative tasks. I had hoped to avoid doing this throughout the day, by typing su root and providing ...
1
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2answers
26 views

how to determine the permissions of groups?

When you invoke sudo, it prompts for password and then checks the /etc/sudoers configuration file to see if the user is permitted access to run the command. /etc/sudoers is the sudo configuration ...
11
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4answers
2k views

How does the OS know that a command needs sudo?

When you run an executable, sometimes the OS will deny your permission to. For example running make install with the prefix being a system path will need sudo, while with the prefix being a ...
1
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2answers
40 views

relation between chmod and sudo on an executable file

What is the relationship between chmod and sudo on an executable file for a user? Are the cases that "a user needs sudo to run an executable" the same as the cases that "chmod hasn't set the ...
14
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1answer
657 views

How can I `alias sudo !!`?

I'm trying to set an alias for sudo !! in Bash. I tried alias sbb='sudo !!', but it interprets that as a literal !! and prints sudo: !!: command not found If I use double quotes, it substitutes ...
0
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1answer
28 views

How root can make sure that this time sudo will not prompt for password a specific user?

I am writing a script, that will setup lxc on the host, and then configure a container. I want this script to be unattended. After the container is created and run, there is a moment, when I want to ...
0
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1answer
24 views

What do you do when you try to sudo and root's PATH has gone kerblooey?

I've got a feeling something bad just happened to this machine. faheem@bulldog:/usr/local/src/mercurial$ sudo dpkg -i mercurial_3.0-1_amd64.deb mercurial-common_3.0-1_all.deb dpkg: warning: ...
2
votes
2answers
55 views

Piping tcpdump traffic via SSH - but no root ssh access

The situation I would like to use Wireshark to analyze traffic on one of our servers, but I don't want to install Wireshark on the server itself. I understand that I can pipe tcpdump traffic via SSH ...
4
votes
2answers
55 views

Booting a Raspberry Pi from an NFS share

I am trying to boot my Raspberry Pi using an NFS share. I have copied the boot partition of the Raspbian Wheezy image to the SD card and copied the root partition to a networked hard drive. I have ...
24
votes
7answers
32k views

How to run a specific program as root without a password prompt?

I need to run something as sudo without a password, so I used visudo and added this to my sudoers file: MYUSERNAME ALL = NOPASSWD: /path/to/my/program Then I tried it out: $ sudo ...
2
votes
0answers
101 views

Why sudo won't remember my password?

I use sudo in many systems, but I have one of them that makes me type my password each time I run sudo. All the others remember it for a while. This is debian 7.4 wheezy and sudo 1.8.5 I found this : ...
3
votes
1answer
41 views

How do I use sudo to run multiple commands as another user within a portion of a script?

I'm trying to run the following: if [! -f .owner ]; then creator=$(whoami) sudo -u appuser ksh echo "$creator" >> .owner mkdir test1 test2 test3 exit fi However, the ...
25
votes
6answers
14k views

What is the need for `fakeroot` command in linux

Why do we need fakeroot command at all? Can't we simply use the sudo or su commands? The man page says: fakeroot - run a command in an environment faking root privileges for file manipulation ...
0
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4answers
7k views

Is there a difference between sudo su - root and sudo -u root -H /bin/bash?

Like title says, is there a difference between these two commands : sudo su - root sudo -u root -H /bin/bash I'm using GNU/Linux, if that makes a difference.
3
votes
1answer
29 views

Difference between sudo -s and sudo su -

It might be a duplicate and I'm pretty sure I already show an answer to that somewhere, but I wondered what are the difference in term of right and variable and other stuff between sudo -s and sudo su ...
6
votes
3answers
10k views

How to get back sudo on Ubuntu?

I have done this: sudo chown -R myname /usr/ and now I can't use the sudo command because of this error: sudo: must be setuid root And as I read this means that the owner of this file ...
2
votes
2answers
540 views

Using sudoers to allow php to run command

I am trying to get my php page to run this command: shell_exec("sudo /home/xbian/433Utils/RPi_utils/codesend {$num}"); So I added this entry to my sudoers file with visudo: www-data ALL=NOPASSWD: ...
1
vote
1answer
261 views

How do I change file/directory permission of a nfs mounted directory, so I access files as user?

On a Ubuntu computer I mounted a directory from another computer using the following line in the fstab: 12.34.56.78:/space/Images /mnt/space/images nfs rsize=16384,wsize=16384,rw,auto,nolock 0 0 ...
4
votes
2answers
20 views

Use non-root user configuration for root account

When I work with the terminal and use su or sudo to execute a command with the root user's permissions, is it possible to apply the configuration of my "non-root user" (from which I am invoking su or ...
2
votes
1answer
60 views

How can I run as another user?

This is the bash code that should be runned. So first it substitutes the user to openproject and than runs all the code su openproject -c "bash -l" cd ~/openproject git checkout Gemfile.lock git ...
2
votes
2answers
316 views

Sudo Su automated login

I want to automate the login process with sudo su. I have seen lot of questions on these, but none of them are working for me. Automate login with sudo and su Here's my what I tried so far echo ...
1
vote
2answers
66 views

sudo for users with empty passwords

I want sudo to behave like this, for all users: If the user currently has a non-empty password, prompt for the password. If the user currently has an empty password, either prompt for the password ...
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4answers
1k views

How universal is sudo?

I was writing some instructions on how to install something (TeX-related - if you don't ask, I won't ruin your day by supplying more details) and used sudo to install system-wide. Someone commented ...
2
votes
2answers
994 views

How can I keep *all* environment vars for a specific command in sudo?

I have a script that sets several environment variables and then finally calls another script using sudo. The script run with sudo must be able to pick up those variables, and I'm not always going to ...
2
votes
0answers
57 views

Reading from /etc/environment with sudo

Using Ubuntu 14.04 LTS, I'm having a problem trying to read environment variables from /etc/environment when using sudo env. Basically, they are not being displayed. When I do just env, these ...
1
vote
2answers
3k views

How to insert text into a root-owned file using sudo? [duplicate]

Possible Duplicate: Redirecting stdout to a file you don't have write permission on Running a command like sudo echo 'text' >> /file.txt fails with: bash: /file.txt: Permission ...
0
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2answers
2k views

Changing root password does not change sudo password

I'm trying to change the password that get's asked when doing sudo. I'm in Ubuntu. Doing 'sudo passwd' or 'sudo passwd root' does give me the two new password questions, and it successfully changes ...
38
votes
2answers
3k views

Why do we need to use visudo instead of directly modifying the sudoers file?

I understand that if you want to modify who can use sudo and what they can do with it that you should use visudo. I know I'm not suppose to directly modify the sudoers file myself. What is it that ...
3
votes
0answers
105 views

bash does not autocomplete my command when using sudo?

I'm using SaltStack. I would like to auto-complete the minion name when calling salt command. The following line has been added into ~/.bashrc: complete -o default -o nospace -W "$(sudo ls -1 ...
5
votes
1answer
175 views

No password to run command as root for fixed command? [duplicate]

Is it possible to define a rule in sudoers to allow one user to run one well defined command as root, without password or other authentication except being the right user? Are there alternatives to ...
2
votes
1answer
22 views

setup sudoers to mount network shares and loop devices and misc

I would like to setup sudoers to grant users to mount all kind of network shares and loop devices to their home directory. Here is a try that I found and changed a bit on one old post in ...
3
votes
1answer
16 views

How to execute as the logged-in user in a sudo script (OSX)?

Is there a way to switch contexts like that? The script in my specific case is an installer postinstall script, which requires sudo privileges only for some of the tasks and requires the logged-in ...
1
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0answers
54 views

sudo -u git clone

I'm on Ubuntu server 14.04. I am using apache web server which runs as the www-data. I need to do git clone from a script (a web hook). This script will run with www-data user privilages. Running ...
1
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0answers
370 views

git deploy using sudo nopasswd

I'm trying to write simple post-recieve script, which would switch to webserver user and pull git repository. To do so, I added git user to sudoers (I've added this to very last line): git ALL = ...
21
votes
4answers
42k views

How to make Fedora user a sudoer?

I want to give a Fedora user sudo privileges. How do I do that?
1
vote
4answers
78 views

How to correctly enable sudo for user in Fedora 20

I followed this question in order to enable sudo command for my created user. So I added it into the wheels group and edited the /etc/sudoers file accordingly. But what I don't get about this is when ...
4
votes
1answer
121 views

View List of Sudoers with No Sudo Priviledges

If I'm not a sudoer, is it possible to view the list sudoers? Does /etc/group show this information?
4
votes
1answer
94 views

How safe is sudo when running from root to run an application as a less privileged user?

Lets say I am logged in at a root terminal and I run something like the following command: sudo -u '#1000' dbus-launch chromium Are there any potential security issues I should be worried about? ...
3
votes
1answer
26 views

Is there an easy way to background a sudo shell?

A bit more details, what I'm looking for is some kind of ^Z for sudo shells. For instance when running a long command I can hit ^Z to suspend the command or when I do ~^Z in ssh after hitting Enter. ...
1
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0answers
39 views

What is the correct way to abort an operation from the sudo password prompt?

Sometimes it amazes me the "little" things I don't know about Unix. For years now I have occasionally noted that I don't actually know how to deal with the sudo password prompt cleanly. Every once in ...
0
votes
1answer
42 views

Restrict user to run shell script except which is defined in sudoer file

I have scientific linux 6.4 running on my system, I have restricted other users to run shell script except one, which is defined in /etc/sudoers file. For example: I have one file.sh in my admin's ...
1
vote
2answers
37 views

Problem executing command as differetn user with sudo -u

I have the following problem When I'm trying to execute ls as user abc with the following command I get an error: xyz@host:~/temp$ sudo -u abc ls [sudo] password for xyz: Sorry, user xyz is not ...
3
votes
1answer
119 views

Some software runs only by root terminal

I'm facing this odd situation here, programs such as gparted, furiusisomount and Rstudio never run by clicking on their icons in the applications menu or by running them with terminal as a normal ...
5
votes
1answer
125 views

Give user permission to rm without password or sudo

I'm trying to give the ubuntu user on my machine the ability to rm folders and files (mainly in the /www/ folder) without the need to invoke a password or the need to use sudo. I've been following ...
4
votes
1answer
53 views

keep aliases when I use sudo bash

I have a Centos 5.5 server that has my own alias commands for my account. When I do "sudo bash" I can still use those aliases, I didn't have to add the aliases to the root bashrc. I have another ...
0
votes
1answer
297 views

Webmin administrative panel options are missing

When I log into Webmin, with the Ubuntu administrative user frank, I cannot see most of the administrative options: frank is shown as the Administration username in Webmin. I accidentally ...
1
vote
1answer
21 views

Replacing graphical sudo prompts with sudo command

I'm trying to replace gksudo, pkexec and its ilk with sudo. However, I'm told that using sudo <graphical_program> is a bad idea. Would the following work as a decent replacement? sudo -H ...
3
votes
1answer
169 views

sudo environment: “g++: command not found”

I have a relatively fresh RHEL 6.5 install, on to which I have installed from source GCCC 4.9. After I installed GCC 4.9, I uninstalled the distro-provided older GCC version via: sudo yum remove gcc ...