Ubuntu :: No Users With Sudo Privileges?
Apr 15, 2010
I was adding me and my bud to a new group I created, but I used -G instead of -g as the tutorial suggested, I think this removed me from all other groups and put me in the new one. The same with my bud. Now I dont have sudo privileges, nor does my bud, and we have not set a password for the root account.
Code:
sudo ls -l
USER@SERVER:/var$ sudo password for USER:
USER is not in the sudoers file. this incident will be reported.
USER@SERVER:/var$
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Jul 31, 2010
i want to create a sudo user, sudo user should not start or stop the service. as like a normal user i created a user called root2 and i edited the user with visudo command and added the below line to the user root2 and got the full privilages.
root2 ALL=(ALL) ALL
i commented the below line ##Cmnd_Alias SERVICES = /sbin/service, /sbin/chkconfig eventhough the sudo user root2 can start and stop the service which i dont want to give that privilage.
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Jan 11, 2016
receive bash notice: "jim is not in the sudoers file."Just finished my first Debian install several hours ago, my first go around w/Debian. Installed 8.2 DVD ISO on USB. Had this issue from my first use in BASH, not a forgotten password problem. So 2 questions:
1) I'll be installing Debian again, and want to avoid this in future. There were 2 inputs on setup for name (my full name) and user (installer offered my first name which I accepted). 2 inputs for Password as well: I used the same password both times (have done this w/Mint & Ubuntu w/out issue).
2) How to fix this? Tried this: URL...however, neither keystroke got me to "rescue" prompt as article suggests. Several other articles presume an admin with privileges has sudo access to modify sudoers file.
I have multi-boot setup in BING environment (MBR, not EFI). I am booting from a GRUB2 ISO using grub commands as I still need GRUB installed in my boot partition until I can get cmd line access. I'm able to get a session on boot with the same password I used in setup.
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Jul 19, 2011
So, I'm not quite sure what the difference is? Is it that sudo allows you to "borrow" superuser privileges, whilst su allows you to actually log in as superuser? Also, when I sudo [command] and get prompted for a password, after I input it, things work just fine, but if I su, and then get prompted for a password, I can't log in as superuser... Why is this?
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Nov 1, 2010
We are trying to set up a classroom training environment where our SIG can hold classes for prospective converts from Microsoft/Mac. The ten machines will have /home/student01..10 and /home/linsig01..10 as users. We want /home/student01 to be able to explore and sudo so they can learn to administer their personal machines at home. We don't want them to be able to modify (sudo) /home/linsig01. I've seen the tutorial on Access Control Lists but I'd like other input so we get it right the first time.
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Jan 18, 2011
How can i see history of all sudo users and all root users in fedora 13 ? history command only shows one users history ?
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Feb 21, 2011
i am relatively new to ubuntu. Just recenty i have not been able to access certain files(for example the history and bookmarks in the firefox folder), download files individually from the internet(music,fonts,etc), recieving an error message
Quote: Originally Posted by firefox error console
Error: [Exception... "Component returned failure code: 0x80520015 (NS_ERROR_FILE_ACCESS_DENIED) [nsIFileOutputStream.init]" nsresult: "0x80520015 (NS_ERROR_FILE_ACCESS_DENIED)" location: "JS frame :: file:///usr/lib/firefox-3.6.13/components/nsSessionStore.js :: sss_writeFile :: line 2944" data: no][code]...
i have sudo priveleges and can install via update manager. i read somewhere that compizfusion might affect access permissions and i do use compiz and emerald at the same time.
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May 31, 2010
I just got a fresh Ubuntu 10.04 install on a system, added Lubuntu (the poor thing's 10 years old), and added a second user and gave him sudo/admin rights via the Users and Groups app. All was working fine, but now the initial user can't make any system changes. The initial user can still execute sudo and gksudo, but not much else.
In the Network Connections applet, the initial user can't edit the "Auto eth0" connection, the "Edit" and "Delete" buttons are just greyed out.
In User and Groups, I can click "Advanced Settings" or "Change" on another user, but nothing will happen. If I click "Add User" as the initial user, it will give the "Not authorized" popup.
I had a second user that I'd given adminstrator/sudo access to. So to change the network settings I logged in as this user for the first time, and was able to change some things. However, after a reboot I had the same problems with this new account.
I haven't done anything with this install besides install openssh-server, add some firewall rules with ufw, and add the Lubuntu desktop. Most of my google results turned up basic stuff like corrupted sudoers file (mine is still in pristine, default condition), and not being part of the admin group (which both users still are). The behavior also persists regardless of whether I use gnome or Lubuntu for my session.
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Dec 13, 2010
I am developing a program that uses libusb-1.0 on a FC14 x64 system. I solved the compile and link issues, but I now have a problem with user privileges when I try to get device handles. The problem appears to be in the mounting of the usbfs. Is the an accepted fix to giving users read/write privileges for all usb devices?
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Feb 15, 2011
I have previously set up sudo via adding my name to the wheel group and then giving full privileges to the wheel group in the sudoers file. Now I choose to learn to limit that. Had noticed the most frequent use I have of sudo is to run yum update. This got me thinking, could I remove the wheel group privileges and add the following line in sudoers to limit the privilege to simply running yum, and furthermore, make it so I could run yum without a password:
## Allow root to run any commands anywhere
rootALL=(ALL) ALL
Troy ALL= NOPASSWD: /usr/bin/yum
I think that would in fact work (if I understood one of the pages here, it will work). However, upon further thinking I realized that in such a case then anyone sitting at my computer could then use yum, without a password, to install or remove any file on my system � probably not a good idea. As a result I have to ask, can I tighten the privilege even further such that the only privilege so given was to run �yum update� and nothing else? (for example if they ran �yum install� it would fail). If you can do it, how?
Last, I was going to limit the privilege, time wise and try wise, by adding the following to the sudoers file:
# Defaults specification
Defaults:Troy timestamp_timeout=0, passwd_tries=3
Will that really work to limit the elevated privilege so I don't have elevated privileges lingering about, or is there a better way to do so?
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Jan 6, 2010
In researching current ldap issue (not being able to do anything but log in) it seems that there are no concepts of privileges, roles, etc. that could be assigned to a user in LDAP.
I've only seen fields that deal with name, organization, etc., not with application-specific access control.
I have to assign certain access privileges to users authenticated via LDAP server based on the privilege level mentoned in the LDAP server. How to attain this.
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Oct 5, 2010
I have a 10.04 machine that su and sudo will not work on. I am also unable to login as a user other than root.
I am haven't been to figure out what might the problem.
Obviously there is some kind of problem validating users, but I can't find it.
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Aug 2, 2011
I can't get sudo users-admin to run. This is the error I get:
Gtk-ERROR **: GTK+ 2.x symbols detected. Using GTK+ 2.x and GTK+ 3 in the same process is not supported aborting...
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Jun 5, 2010
As per subject, what's the best way to run a CRON job for something that "normal" users need to run as SUDO? There is a problem with the internal clock on my PC so at a regular time (every hour or day for example) I want to sync with my Network Time server. I use "sudo ntpdate time.bgr.local" as it is now and have to enter my user's password for it to work.I know root is disabled by default and would like to keep it that way if possible but if I have to enable it and then add it to root's cron list the so be it but would prefer not to.
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Jun 20, 2011
Is it possible to restrict users with 'sudo' from accessing certain directories? Rather than just exclude cd and ls from the sudo privileges, that is.
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Jul 1, 2011
I have a box with about 30-40 users on it, and I need to prevent a certain group of users from using sudo at all. Is this even possible.
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Aug 14, 2010
Is there a way to allow users from a remote account (say, those connecting to the X server from a remote location) to sudo? What kind of account do you need to add to /etc/sudoers to be able to allow this to happen?
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Mar 10, 2011
I've set up a user account for friends & colleagues that does NOT require a login password. Unfortunately, in this OS some things don't work unless you login -- sudo Must regular users have AND use Root's password?
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Jul 24, 2010
i would like to prevent all users other than the user "parker" on my system from using the su or sudo commands. I have not attempted to modify the sudoers file so it just contains the standard root ALL = (ALL) ALL.
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Mar 9, 2011
I decided to consult you before making any changes, because the clients' PCs are spread all over the country and I do not have the physical access to their boxes.The idea is to take away the ability of using sudo for common users.I know that the syntax of this file may vary a bit in different distributions.Our OS is Ubuntu 10.10.I created the account 'support' for me and other technician stuff of our department. So, 'support' user must have all the power. And common users mustn't have access to 'sudo'. This is the requirement.As far as I remember, in Slackware the user must be a member of 'wheel' group to be able to use 'sudo' (but I may be wrong).
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May 20, 2010
I was trying to list sudo users in a Linux Machine,
[root@redhat ~]# grep -v -E '^#' /etc/sudoers
root ALL=(ALL) ALL
%work ALL=(ALL) ALL
%dilipvp ALL=(ALL) ALL
where work is a group and dilipvp is user. Can you help me in creating a better script which can list the members of the group work as well. and why I am getting empty space in between.
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Aug 3, 2010
I've installed rubygems on ubuntu, but it has a known issue that the rubygems' bin/ directory is not in the PATH. I know about exporting the PATH variable, and adding it to .bashrc, but I'd like to configure it so that every user has it on his PATH, even if he tries to run it with sudo. Where should I export the PATH variable then?
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Jan 5, 2011
I am trying to setup a system to allow normal users to execute a command without using sudo. Is this possible?
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Jun 10, 2010
explain the difference between these two commands. I'm currently reading about changing your mac address and both of these commands show up a lot. They sound like the same thing to me. Is one better than the other, or do you need to use both to change your mac address?
Code:
sudo ifconfig eth0 down
sudo /etc/init.d/networking stop
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Jan 2, 2011
I have a problem when I want to use su I get this error:Code:su: pam_start: error 26I have googled it so I found this topic (http://www.linuxquestions.org/questi...r-26-a-615024/) but it didn't really help me. There was a reply on that topic and his question was what the output of this was:
Code:
ldd /usr/bin/passwd
and
[code]....
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Sep 16, 2010
A day ago I finally got around to upgrading the PackageKit installation that had been sitting for a week and a half, so I found a new upgrade for sudo available - the one that gives the sudoreplay command, I forget which version number it is exactly. When I try to use the sudo command I get this notice in my terminal:Code:Can't open /var/db/sudo/me/1: Permission deniedI didn't get it before. What do I have to do to make it open? I'm using SELinux in enforcing mode if that helps.
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Jul 2, 2011
I have read a lot of questions from people wanting to take Debian (or some other distribution) and make its sudo command act more like the way Ubuntu's sudo does. I want to do the exact opposite, I want to make Ubuntu's sudo command act more like the sudo command from another distribution. ie I want there to be one root password
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Jan 6, 2011
Kernel 2.6.21.5, Slackware 12.0
Code:
Code:
On the other hand
Code:
So, I do not understand why the notification "sudo: cd: command not found", considering cd is a bash built-in command.
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Oct 11, 2009
Where is the SUDO file at, and remind me how do I add myself as a SUDO'er?
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Jun 19, 2011
It is my understanding that they do the same: they ask for my password (if I am allowed in /etc/sudoers), and give me a login shell as root.
Is there any difference between them?
sudo su -
sudo -i
Also, what's the difference between
sudo su
sudo -s
I think that they both ask for my password, and give me a shell with my old environment variables.
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