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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
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Closed 3 years ago.
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I have installed the Arch Linux and loaded it using VM then tried to login with root/root and it says login incorrect, could you let me know the default Arch linux username and password
Actually, there is no default user for the os. You can try root without any password and it most probably will prompt you to create a user.
It might be that your VM created a user for you. Search the docs for the VM.
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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 7 years ago.
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I am using Linux system but by mistake I fired a chmod command as follows:-
chmod -R 777 /
after that I restart my System. But when I try to login, the system is login but after 2-3 seconds again to login window. Please help me to solve this problem.
Just get your important files and configs backup them. format the partition which the OS installed, then reinstall again, sorry there is no easy way to correct these permissions.
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Closed 8 years ago.
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That's is the question.. how can i jail a user in a certain folder so that he can create files like images but can no go up using the command cd .. or see other folders outside?
Thanks.
Read about chroot http://linux.die.net/man/1/chroot
You can even create a minimal environment for the user
Alternatively just use file permissions so that the user is only able to see what the user should be able to.