Unix and Linux Stack Exchange
Unix and Linux Stack Exchange

Questions tagged [administration]

224 questions
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How do you kick a benign user off your system?

I was googling this a bit ago and noticed a couple of ways, but I'm guessing that google doesn't know all. So how do you kick users off your Linux box? also how do you go about seeing they are logged in in the first place? and related... does your…
xenoterracide
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Server admin sent me a private key to use. Why?

I'm supposed to be accessing a server in order to link a company's staging and live servers into our deployment loop. An admin over on their side set up the two instances and then created a user on the server for us to SSH in as. This much I'm used…
Toby
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How do I run a command as the system administrator (root)

I need to run a command with administrative privileges. Someone said I should run a command as root. How do I do this?
Stefan
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I've just "mv"ed a 49GB directory to a bad file path, is it possible to restore the original state of the files?

I have (well, I had) a directory: /media/admin/my_data It was approximately 49GB in size and had tens of thousands of files in it. The directory is the mount point of an active LUKS partition. I wanted to rename the directory…
the_velour_fog
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Is it possible to rename a Unix user account?

I installed Ubuntu on a computer that is now used by somebody else. I renamed the account with her name, but it only changes the fullname, not the user name, which is still displayed in the top right (in the fast-user-switch-applet). Is there a…
Yann Dìnendal
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How can I change a user's default group in Linux?

Being new to Linux administration, I'm a little confused about the following commands: useradd usermod groupadd groupmod I've just finished reading the user administration book in the Linux/Unix Administrator's handbook, but some things are still a…
cwd
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What is a fast command line way to switch between multiple directories for system administration?

What is a fast command line way to switch between multiple directories for system administration? I mean, I can use pushd . and popd to toggle, but what if I want to store multiples and cycle through them, rather than permanently popping them off…
Volomike
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How to make Fedora user a sudoer?

I want to give a Fedora user sudo privileges. How do I do that?
tshepang
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How to know reason of a process going to sleep state and wake it up?

When I do 'top' , I see my perl script process in 'S' state. Is there a way to know, what is making this perl process go in sleep state and ways to wake it up? Any way to debug to give more insights on lines in perl script making it go in 'S' state.
xyz
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Vim: searching upward/downward in file from specific point/position

I want to search a word from my current cursor position in vim to upward in file. How to achieve this? Also how to do same for downward in file.
Drt
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6 answers

Alternatives for "lsof" command?

In many cases lsof is not installed on the machines that I have to work with, but the "function" of lsof would be needed very much (for example on AIX). :\ Are there any lsof like applications in the non-Windows world? For example, I need to know…
LanceBaynes
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How to know if /dev/sdX is a connected USB or HDD?

How can I know if /dev/sdX is a local HDD or USB key?  I’d prefer a way of doing this without root privileges. OK, udevadm helped a lot: For local HDD: udevadm info --query=all --name=sdb | grep ID_BUS E: ID_BUS=ata For USB key: udevadm info…
daisy
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Why did a new user inherit files from a deleted user?

So I had to do an exercise in a book as homework. First you had to create a user like: useradd -c "Steven Baxter" -s "/bin/sh" sbaxter Then you had to add some files to the /home/sbaxter directory: touch /home/sbaxter/ some.txt new.txt…
John
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Implications creating System Accounts "useradd -r" Linux Fedora/RHEL/CentOS

I want to know what are the implications of create an account using -r option? # useradd -r ... The help says: -r, --system Create a system account. System users will be created with no aging information in /etc/shadow, and their numeric…
QA_Col
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usermod: group 'sudo' does not exist in CentOS

I want to grant a user sudo access. I suppose mainly I want to grant privileges to install software, and am not quite sure how to this in CentOS: https://linuxize.com/post/how-to-add-user-to-sudoers-in-centos/ wheras in Ubuntu the option, at least…
Nicholas Saunders
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