[Solved]Can anyone tell me why -H flag with sudo doesn't switch to the target user's home directory?
I have checked the man page ,which says :
The -H (HOME) option sets the HOME environment variable to the homedir of
the target user (root by default) as specified in passwd(5). By default,
sudo does not modify HOME
But I have tried below command:
as you can see ,it still stays in the /root and doesn't change to user wanglei's home directory which is /home/wanglei, what am I missing ,please help me
Hi all,
First of all, i am so sorry about my bad level in English writing.
I have some problem in linux and i hope the experts of this forum to help me if they have enough time to reply to me.
I have a scenario of configuring NIS and NFS in Redhat Linux environment such that user can login... (0 Replies)
Hi,
I've created solaris user which has both FTP and SFTP Access. Using the "ftpaccess" configuration file options "guest-root" and "restricted-uid", i can restrict the user to a specific directory. But I'm unable to restrict the user when the user is logged in using SFTP.
The aim is to... (1 Reply)
Hi everyone:
I have a big trouble, I need create a script that must switch user and then must execute
certain commands, sadly neither my user nor the second user have no privileges
for sudo, I've tried everything but seems su doesn't accept input redirection, please help me, it's very... (8 Replies)
I am trying to figure out a one liner to toggle a flag variable. eg.
FLAG=0
Is there a way to use sed to toggle above example between 0 and 1. That is if run with flag set to zero it would change it to one if run again it would set it to zero.
I thought I had it figured but the... (6 Replies)
I'm configuring a sudo Runas_Alias in the sudoers file on a hp-ux 11.31 system. The goal is to allow some hp-ux accounts to sudo to a service account and run commands as that user. Here's the related sudoers entries:
User_Alias DMSTAFF = %dmstaff
Runas_Alias DMALIAS = dmadmin
DMSTAFF ... (2 Replies)
Hii all,
i create the user
useradd -d /home/kk kk
passwd kk
when i tried to login to kk
i get a error user directory doesn't exist
then i tried
useradd kkk
passwd kkkwhen i tried to login to kkk
i get the same error user directory doesn't exist. (4 Replies)
Hi all
I wanted to change the home dir for a user, but when using smh :
SMH->Accounts for Users and Groups->Local Users->Modify User
----------------------------------------------------------------------------------------------------------------------------------------------
* Required... (8 Replies)
Good Afternoon,
I'm trying userdel -r username on Solaris 9 and getting
UX: userdel: ERROR: unable to find status about home directory: No such file or directory
I see the user's home directory and getent passwd shows the user
Anybody know what's causing it? (2 Replies)
Hello,
I've just started using a Solaris machine with SunOS 5.10.
After the machine is turned on, I open a Console window and at the prompt, if I execute a pwd command, it tells me I'm at my home directory (someone configured "myuser" as default user after init).
... (2 Replies)
Discussion started by: egyassun
2 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)