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I edited suders file with permission 440
testsudo ALL=(ALL) NOPASSWD: /usr/bin/adduser
but, when i use command
sudo adduser test
with user testsudo, linux ask me testsudo's password.
however, i edited suders file with testsudo ALL=(ALL) NOPASSWD: ALL
it works.
why?
Because it's
/usr/sbin/adduser
not
/usr/bin/adduser
But this really doesn't belong on SO. Voting to close.
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Closed 2 years ago.
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I found these commands in a tutorial to setup selenium on linux. I'm not sure what they do, or why they are needed.
sudo chown root:root /usr/bin/chromedriver
sudo chmod +x /usr/bin/chromedriver
The post in question is here:
https://www.ultralinux.org/post/how-to-install-selenium-python-in-linux/
The first command make the superuser the owner of chromedriver. This is a good idea for programs that are installed in /usr/bin, to prevent ordinary users from modifying them (I assume the file is only writable by the owner, which is the usual default).
The second command adds execute permission for the user, group and others. This ensures that anyone can run the program.
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Closed 4 years ago.
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Does sudoers file required to restart to take changes effect. If yes, then how we can restart? without resarting the system.
If your question is : "do I need to restart my machine if I add someone in the sudoers file ?" the answer is : No, you don't need to restart, the newly user added in the sudoers will be able to use sudo as soon as you save the file.
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Closed 6 years ago.
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How can I configure Linux to see the prompt for the root password if Sam try to execute the following command: $ sudo mkdir /opt/test?
If Sam is part of sudoers, the terminal ask for the user password not for the root password.
In /etc/sudoers, add this line:
Defaults rootpw
Make sure you use visudo for editing this file. For more information, you can check the link
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Closed 4 years ago.
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I am trying to automate the build of my redhat server.
To add an existing user to sudoer:
Add user to sudoers file by using sudo visudo and add the following
line:
USERNAME ALL=(ALL:ALL) ALL
How do I perform above task using RedHat commands?
One way would be just to add username ALL = NOPASSWD:ALL to the end of /etc/sudoers.
echo "username ALL = NOPASSWD:ALL" >> /etc/sudoers
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Closed 8 years ago.
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I have a regular username on a linux machine. I also have the root privilege. Today I found my username was deleted. That is, if I logged in as root and then ran
su myusername
The systems said "myusername" does not exist. I checked file /etc/passwd and "myusername" was not there.
My question is, is there anyway to find out who deleted "myusername"?
You might try something like this:
grep "deluser" /home/*/.bash_history /root/.bash_history