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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SU setgid: PERMISSION DENIED, SUDO: PERM_ROOT 0, -1, 1 PERMISSION DENIED

Hi I have a problem that I cannot solve. I cannot log into root, su, or sudo. Everything works fine via ssh so I tried on ssh via putty: Set root password: sudo passwd Add user to sudo/admin ...
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53 views

Can not excute commands with sudo

I forgot Ubuntu user password, after referring articles on how to reset user password, I could reset the password for the user. passwd menuka from the recovery mode. However, I tried the new password ...
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26 views

How to get the long 'less' prompt with sudo?

I have added the following to my user's .bashrc file to get a longer prompt in less: export LESS="-M" This is added to the root user's .bashrc file as well, so when I sudo bash to get a root shell, ...
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110 views

Booting in single user mode

On 14.10 holding shift at boot time doesn't bring up the grub menu. Is there another way I can boot in single user mode? I have bricked my sudoers file so I can't use sudo btw. I don't get a grub ...
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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: ...
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104 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 ...
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155 views

Would like to use different passwords for initial login and sudo for encrypted home folder

I just encrypted my home directory using ecryptfs and the instructions from How to Encrypt Ubuntu Home Folder After Installation. In order to really benefit from the encryption, however, I needed to ...
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33 views

kdesudo - can it return before spawned process closes?

kdesudo doesn't return until the process started with it exits. So, if I want to start three processes all at the same time, I have to use three terminal tabs. I'd rather use one tab that returns to ...
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120 views

How to add Active Directory users as sudoers

I'm following this article. What I've done: I can connect to Active Directory I can login to the Active Directory Now what I'm looking for is a way to make any active directory user a sudoer. I'm ...
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699 views

Authenticating error with ubuntu 14.04 LTS

< Problem: Just as I upgraded my ubuntu 13.10 to 14.04 LTS. I couldn't pass keyring and bash authentication. I can login in recovery mood for both root and my account, but that's not the case in ...
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296 views

Cannot add ppa for gvfs-mtp

I am a total newbie concerning anything to do with Ubuntu/Linux. I am running 12.04 on VM Player. I am trying to connect my HTC One (Android 4.3) to Ubuntu, and looking online has told me to do: ...
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2k views

Permission problem with SFTP in FileZilla

Recently, we installed Ubuntu Server on our servers this is very new for us. However, we tried to setup a apache2 server which did work. But the problem is that we can't configure apache and other ...
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1k views

Adduser: group sudo does not exist

I am able to login to my account but can't do anything related to superuser now. Updates, sharing, sudo and all things say authentication failed. I tried to correct that by going in recovery mode and ...
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694 views

cannot start graphical programs with sudo

i have a fresh ubuntu 12.04 installation with encrypted home partition. i copied over my home folder from another computer. when i try to launch graphical programs via sudo i get errors like the ...
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132 views

How do I perform a backup of sudoers file?

After reading the following two posts: Trying to install an openVPN GUI messed up sudoers Standards accounts are able to get root access using sudo without password request I would like to learn ...
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2k views

Having Error message while using the “sudo nautilus” command in terminal

I am using Ubuntu 12.04 LTS (32 bit). When I run "sudo nautilus" command in the Terminal, this output appears: tushar@tushar-G41M-Combo:~$ sudo nautilus [sudo] password for tushar: Initializing ...
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555 views

Upgrading from 12.10 to 13.04 -> dpkg: error processing sudo (--configure)

Here's the deal and reason I'm asking for your help. Last night I went on upgrading my Xubuntu 12.10 installation to 13.04, so at tty1 I run the command sudo do-release-upgrade and everything ...
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295 views

Problem with Login Screen and Sudo Comand

I'm new to Linux world, infact I have installed Ubuntu 12.04 yesterday on my computer. I have Dual-COre processor, 2GB RAM, 500GB HardDisk, No graphics card and XP in parallel. I'm facing So many ...
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685 views

12.04 sudo testparm -s smb.conf.master >smb.conf fails on permsissions

When I run sudo testparm -s smb.conf.master >smb.conf bash: smb.conf: Permission denied I just need a simple samba configuration to share files among 4 linux machines behind a router on a very ...
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464 views

installing apache 2 in ubuntu

Hello I am new to ubuntu. I am trying to install Apache2 using "sudo apt-get install apache2" command.I have set my java path as per rules but still its showing me this following errors: sha256sum ...
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321 views

Only user can no more sudo and root account in safemode has password

I accidentally commented the line Members of the admin group may gain root privileges: %admin ALL=(ALL) ALL in /etc/sudoers file, now i am unable to sudo into my system using the only available ...
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921 views

Sudo user without the permission to edit sudoers

How can I add an user to sudoers list with all privileges, but that user should not be able to edit the sudoers file ?
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194 views

How to dial modem without sudo

I am using ixconn as modem manager because it has many more features than the default network manager. But it cannot be used without root privileges (i.e., sudo). How can I use ixconn to dial my ...
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11 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 ...
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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 ]]; ...
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35 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 ...
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35 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 ...
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79 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 ...
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28 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 ...
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32 views

How can I get a .sh file to run as Sudo in profile.d?

I have a .sh script that needs to run to check if a machine has had certain parameters set. I've placed it in the profile.d directory but I need this script to run with sudo privilege. Does anyone ...
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76 views

Why the PHP software is not getting updated to the latest stable released version?

I'm using LAMP on my local machine which runs Ubuntu 12.04. Currently I'm using PHP 5.5.20 on my machine. Following is the command I run from the terminal and below that is the output: ~$ php -v ...
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64 views

How do I switch back to Windows 8?

Okay so I am taking an online course to learn Linux and Ubuntu. On my desktop that has windows 8.1, I downloaded Ubuntu and then watched a couple of videos to make sure that I partitioned the drive ...
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34 views

Any program that use Java needs to be run under sudo?

I have installed a program that needs Java and I've changed to different Java runtime (Oracle). Now every use of java needs to be run from the terminal under sudo. I needs to make it to use Java ...
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266 views

Update alternatives java for all users

I'm using ubuntu 14.04 with multiple java versions on it. I'm trying to change the current java version for my user with: sudo update-alternatives --config java sudo update-alternatives ...
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28 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 ...
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15 views

Start an appli with sheduled task not work

I have a seedbox unders a ubuntu desktop server. I run rtorrent correctly but if I restart the server I need to relaunch rtorrent with this command : sudo -i #mypassword" screen -fa -d -m rtorrent ...
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51 views

Run interpreted commands within sudo

The question is how to run generic commands which may contain ; && | < > << >> $ and so on within sudo. Possible solutions could be: To use interpreters within sudo sudo ...
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38 views

Why do I need sudo to run apt-mirror?

Why do I need sudo to run apt-mirror? Is there a way to run apt-mirror without sudo?
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42 views

I seem no longer to be a sudoer

On Sunday I let my son watch Netflix on my laptop as I was ill and in bed so couldn't watch it downstairs on the television with him. This may or may not be the root cause of my problem. Sudo no ...
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153 views

How to fix error temporary failure resolving 'archive.ubuntu.com'

I'm trying to install openvswitch on a Ubuntu VM(virtualbox) After executing sudo apt-get install openvswitch-switch I get the following errors: err http //archive.ubuntu.com/ubuntu/ trusty/main ...
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41 views

User stopped being sudoer after release upgrade

I've upgraded one of web server, that was running Ubuntu from 11.10 to 12.04 (No downtime since it's creation, though serving 10-40k requests/daily). sudo apt-get install update-manager-core ...
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85 views

How can I have Wicd connect to my wireless network without having to enter a password?

In the context of my earlier deleted question below: Everytime I run WICD (Network Manager) it requires my password for permission. I'm not against Ubuntu asking for passwords in general but ...
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78 views

Can't use sudo, gedit, i'm getting error in upgrading

sudo: unable to open /var/lib/sudo/username/7: No such file or directory W: Not using locking for read only lock file /var/lib/dpkg/lock E: Unable to write to /var/cache/apt/ E: The package lists or ...
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41 views

problem occuring while creating .exe file

I'm trying to run test problem in the mfix but got struck with an error sh: 0: Can't open ../../model/make_mfix. bhaskar@admin2-Precision-T7600:~/mfix/run/tests/Added_Mass$ sh ../../model/make_mfix ...
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61 views

Lost the root privilege after try to add the user to a group

My user lost root privilege after try to add the user to a group. It's looks like the "usermod xxxx --groups ..." change the from the root group to the new one, it's a mistake but the thing is my user ...
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28 views

wifi trouble shooting

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 seem ...
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148 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 ...
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214 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 ...
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24 views

PROBLEM : when Update my system (in directory).

When I type sudo apt-get update in terminal that shows error like this E: Could not get lock /var/lib/apt/lists/lock - open (11: Resource temporarily unavailable) E: Unable to lock directory ...
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84 views

Starting mysql server problems

I am trying to get mysql (server?) to start. This is what I keep on getting: Rather than invoking init scripts through /etc/init.d, use service(8) utility, e.g. service mysql start THEN when I do ...