My intention was to build a dual boot XP Pro 64 and Ubuntu media server. I had installed the AMD64 version of Ubuntu 8.10 server and thought that I would be able to install Apache server. I need a GUI to work in. I tried to boot and install Mythbuntu 32 bit 8.10, but my machine now won't recognize... (0 Replies)
on giving the command sudo apt-get install build-essentials
it asks for password then the following is displayed
Reading package lists... Done
Building dependency tree
Reading state information... Done
E: Couldn't find package build-essentials (5 Replies)
My PC (Esprimo, 3 yeas old) has one hard drive having 2 partitions C: (80 GB NTFS, XP) and D: (120 GB NTFS, empty) and and a 200 MB area that yet is not-partitioned.
I would like to try Ubuntu and to install Ubuntu on the not-partitioned area . The idea is to have the possibility to run... (7 Replies)
Hi all,
I am working on Ubuntu 7.10 and I want to install libssl-dev_0.9.8a-7ubuntu0.13_i386.deb. So tryied it with apt-get command but getting the following error--
Then I downloaded .deb file and attempt to install it with package installer but again unable to install it and getting the... (3 Replies)
I want to install Ubuntu Ultimate 2.9. I downloaded ISO form its site and burnt it on DVD and tried to install it. But my DVD reader is not working properly so installation fails in between it. I have another OS as Windows.
Can any body tell that if I can install Ubuntu Ultimate directly from... (8 Replies)
I am planning to dual boot Windows XP and Ubuntu 9.04, I have already burned Ubuntu into a CD and have also downloaded the ISO. But when I go to My Computer to start the installation, a different icon appears. And when I open it with ISO Buster, it opens up separately. I'm confused on what to... (5 Replies)
I am trying to install tcsh package in ubuntu 11
When i tried to invoke the tcsh,i was prompted to contact administrator to install tcsh package.
Since i am also the admin on my system its my job to install tcsh :D
I have downloaded tcsh package named "tcsh-6.17.00.tar", since i don not have... (12 Replies)
I need to re-install ubuntu on a system with ubuntu 14.04 already installed. I have the cd but can not seem to boot from it or find the installer. Is there a way to re-install from the command line or how do I do a fresh re-install? Thank you :)
---------- Post updated at 10:13 AM... (2 Replies)
I am a developer. A lot of the clients I work for use the Autosys scheduler. In order to educate myself more I would like to install this on my Ubuntu laptop. I have 16.04 btw (pretty sure, don't have it with me atm)
Any feedback would be appreciated. Before I purchase an install. ... (0 Replies)
Discussion started by: cwegescheide
0 Replies
LEARN ABOUT LINUX
sudo_root
sudo_root(8) System Manager's Manual sudo_root(8)NAME
sudo_root - How to run administrative commands
SYNOPSIS
sudo command
sudo -i
INTRODUCTION
By default, the password for the user "root" (the system administrator) is locked. This means you cannot login as root or use su. Instead,
the installer will set up sudo to allow the user that is created during install to run all administrative commands.
This means that in the terminal you can use sudo for commands that require root privileges. All programs in the menu will use a graphical
sudo to prompt for a password. When sudo asks for a password, it needs your password, this means that a root password is not needed.
To run a command which requires root privileges in a terminal, simply prepend sudo in front of it. To get an interactive root shell, use
sudo -i.
ALLOWING OTHER USERS TO RUN SUDO
By default, only the user who installed the system is permitted to run sudo. To add more administrators, i. e. users who can run sudo, you
have to add these users to the group 'admin' by doing one of the following steps:
* In a shell, do
sudo adduser username admin
* Use the graphical "Users & Groups" program in the "System settings" menu to add the new user to the admin group.
BENEFITS OF USING SUDO
The benefits of leaving root disabled by default include the following:
* Users do not have to remember an extra password, which they are likely to forget.
* The installer is able to ask fewer questions.
* It avoids the "I can do anything" interactive login by default - you will be prompted for a password before major changes can happen,
which should make you think about the consequences of what you are doing.
* Sudo adds a log entry of the command(s) run (in /var/log/auth.log).
* Every attacker trying to brute-force their way into your box will know it has an account named root and will try that first. What they do
not know is what the usernames of your other users are.
* Allows easy transfer for admin rights, in a short term or long term period, by adding and removing users from the admin group, while not
compromising the root account.
* sudo can be set up with a much more fine-grained security policy.
* On systems with more than one administrator using sudo avoids sharing a password amongst them.
DOWNSIDES OF USING SUDO
Although for desktops the benefits of using sudo are great, there are possible issues which need to be noted:
* Redirecting the output of commands run with sudo can be confusing at first. For instance consider
sudo ls > /root/somefile
will not work since it is the shell that tries to write to that file. You can use
ls | sudo tee /root/somefile
to get the behaviour you want.
* In a lot of office environments the ONLY local user on a system is root. All other users are imported using NSS techniques such as
nss-ldap. To setup a workstation, or fix it, in the case of a network failure where nss-ldap is broken, root is required. This tends to
leave the system unusable. An extra local user, or an enabled root password is needed here.
GOING BACK TO A TRADITIONAL ROOT ACCOUNT
This is not recommended!
To enable the root account (i.e. set a password) use:
sudo passwd root
Afterwards, edit the sudo configuration with sudo visudo and comment out the line
%admin ALL=(ALL) ALL
to disable sudo access to members of the admin group.
SEE ALSO sudo(8), https://wiki.ubuntu.com/RootSudo
February 8, 2006 sudo_root(8)