Questions about Computer Administration

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-4
votes
0answers
26 views

what are the daily activity of linux admin [on hold]

i am vanaraj learning Linux myself and i want to know the roles and responsibilities and daily activity of Linux admin in organization
-1
votes
0answers
16 views

Administrator menu is missing after installing ubuntu 14.4 [on hold]

i have installed the ubuntu but i am missing the administrator menu in my system menu. i tried it hard to get the solution for this. And while i am sharing the folder, i am also not getting the ...
0
votes
0answers
24 views

Giving r-x permissions to directories of other users

I have an Ubuntu 14.04.1 server with the such permissions scheme (given below in user:group format): root: root super: sudo master master1: master master2: master user1: simple1 user2: simple2 ... ...
0
votes
1answer
24 views

Add two root users during installation during installation + managing it - Ubuntu server

I would like to ask you all, that is it possible to enter some kind of script before entering the setup screen to be able to add 2 root users instantly. I am at the beginning of creating 190 virtual ...
0
votes
0answers
29 views

sudoers_policy, 'sudo' doesn't work?

When I open a terminal and type sudo in order to install or remove applications, it shows: sudo: error in /etc/sudo.conf, line 0 while loading plugin `sudoers_policy' sudo: /usr/lib/sudo/sudoers.so ...
0
votes
2answers
36 views

Linux / ubuntu knowledge [duplicate]

I'm quite new to linux. Fo few years hardly using linux (seen some distros). I have general knowledge about bash programming, administration. Lately have dived into Raspberry PI and Ubuntu based ...
1
vote
2answers
57 views

Why does apt-get marks packages I dont want directly?

If I try to install metapackage apt-get install lubuntu-desktop and then see the output of apt-mark showmanual | grep lubuntu I see much more than just lubuntu-desktop: lubuntu-artwork lubuntu-core ...
1
vote
0answers
92 views

Change notification email subject - Nagios

Anyone can give an idea about, how can I change my Nagios email alert subject? I have google for sometime and every result says to change the command(notify-host-by-email) definition in commands.cfg ...
1
vote
0answers
34 views

User login directly into LXC container

Is it possible to setup host system so that some users will be immediately in corresponding LXC container after logging in?
0
votes
0answers
52 views

Alias remained after removing a package. How to remove it?

I had some errors with nodejs so i wanted to reinstall it. I removed it with sudo apt-get purge nodejs But now if i type nodejs it says bash: /usr/local/bin/node: No such file or directory So ...
1
vote
2answers
50 views

Is there a numbering convention for xorg.conf.d files?

I have had to set up custom xorg.conf.d files on several boxes and one nagging question finally can't be ignored: Is there a numbering convention for these files? Does the number control load priority ...
0
votes
1answer
24 views

What is the best tool to manage several Ubuntu stations over network? [duplicate]

Wich are the options for Ubuntu Desktop management over network? Not installation deployment over network. Management of more than 1000 Ubuntus desktop over network. Something like Red Hat ...
1
vote
0answers
22 views

Automatic software management for user groups

When adding new users, is it possible to install software based on their user groups? For example a Netbeans IDE for say a 'Java development' group or a LAMP stack for a 'web development' group. ...
3
votes
1answer
269 views

How to create a file in a specific location for every user?

I'm running an Ubuntu LTSP setup at a school with about 60 unique users. Occasionally, we need to share a document, create a directory or place a config file in every user's account. Obviously, it's ...
4
votes
1answer
2k views

Is there a simple web GUI for Apache that runs on Ubuntu?

Sadly, all the answers that Google turns up seem to be way out of date (Rapache for example no longer runs on Ubuntu it seems). I'm running Ubuntu Server 14.04 (Trusty Tahr) with a Lubuntu interface, ...
0
votes
0answers
52 views

permanent disabling ip_forward for ubuntu server happens be a problem

I have just installed the latest ubuntu server. This is the state of my server right after booting: root@vzu01-ubuntu:~# uname -a Linux vzu01-ubuntu 3.16.0-30-generic #40~14.04.1-Ubuntu SMP Thu Jan ...
0
votes
2answers
45 views

New program development - need help

I would like to develop a new program for Ubuntu that will monitor the user's activity ,If user frequently uses a particular software "X" in certain time (like 8:00 A.M - 10:00 A.M ) ,when the time ...
3
votes
1answer
115 views

As an administrator how to restrict users from Installing certain packages?

I want to know how does an administrator disable users/groups from downloading certain packages. For example, let it be the youtube-dl package which enables download YouTube videos, or let it be ...
1
vote
2answers
201 views

How does the system admin gets the ethernet address of computers in the network?

I am very new to system administration. Have a doubt, how does the system admin gets the Ethernet address information of the computers in the network. Actually my doubt is how does he determine the ...
0
votes
2answers
40 views

Administrators can change passwords of other administrators

I seems that a user set as an "Administrator" can change passwords of not only "Standard" users, but also other administrators. Is there a way to make it so that administrators (there are multiple on ...
6
votes
2answers
828 views

useradd doesn't allow the user to log on

On an Ubuntu 14.04.2 LTS the following command: adduser fu and then entering a password bar and just pressing Enter on all other questions, creates a user that allows me to log on and has the ...
3
votes
2answers
478 views

Is there an SSH client which duplicates commands to multiple terminals?

I'd like to control several ssh connections from one terminal. For example, I would type ifconfig in the main terminal and all the other ssh connections would run ifconfig. That's what offered PuttyCM ...
1
vote
2answers
503 views

Monitor RAM and CPU usage on Remote Server?

I want to monitor the CPU and RAM usage on my remote server and set up a notification system which notifies me when the RAM usage is high and automatically kill that process. I tried the Nagios ...
1
vote
3answers
375 views

How to hide administrator account or root in Login screen? [duplicate]

I used Ubuntu 12.04 and I want to only user account appear on the Login screen without guest and administrator account. My administrator account cannot view to everybody when their Login. ...
0
votes
1answer
77 views

How to change permission to the users on ubuntu 12.04?

How to change permission to the users to restrict their accessibility? I want to cannot see or cannot access the System Files, Devices and Network in home folder? I used ubuntu 12.04 Thanks, Jerrick ...
0
votes
1answer
513 views

Lubuntu 14.10 won't update or shutdown

I started up my computer and used the terminal to check some network settings, but when I tried to turn it off again, a message shows up at the bottom of the shut down menu: ...
0
votes
1answer
182 views

Prevent standard users from seeing and running some apps

How to control just some apps to be available on other accounts, Not all of them?
45
votes
5answers
3k views

What's a good back-up strategy for 1 desktop PC?

No, this is not a comparison of back-up tools, nor is it a solicitation on What to backup or Why and only a little bit about Where to backup and When to do it. This is basically a strategy question: ...
0
votes
1answer
263 views

How do I unlock system tools such as users and date and time

I'm using Ubuntu Server 14.04 with Gnome and suddenly I can't unlock system settings such as Users and time & date: the unlock icon is grayed out even though I'm an administrator and terminal ...
0
votes
1answer
365 views

Mounting Extra Hard Disk in Ubuntu

I have bought a new 1TB hard disk and formatted in ext4 file system type and attached to my CPU(Already having a HD with Ubuntu installed). Following the answer given here, I tried mounting the ...
1
vote
0answers
188 views

Application Whitelisting

How does an Ubuntu administrator implement application whitelisting? For example, if I create a LAMP server and I only want SSH, Apache, MySQL and PHP to be able to execute. How can I prevent any ...
0
votes
1answer
123 views

Can not Install on a Dell Latitude laptop --

The laptop always boots winXP and requests an Administrator password. I went into the setup where I attempted to reset all passwords and the start up order but the Admin password is still demanded. ...
2
votes
1answer
66 views

Show all installed packages which are not dependencies

I would like to clean my fresh Xubuntu installation a bit. To do this I would like to print all installed packages that are not installed as dependencies. In other worlds I would like to list all ...
0
votes
1answer
3k views

how to install and configure Glassfish 4

How do I install Glassfish 4.x and run it on port 80? While it's easy enough to download Glassfish and unzip it, should it go in a particular directory? Which user should start and stop the server? ...
2
votes
1answer
231 views

how to make scripts which will run on installation of apt package

I have created a bash script which will store some data into a mysql database. Then I have created deb file with that script and made it available for installation by creating local apt repository. ...
0
votes
1answer
499 views

shutdown 5:30pm every day

for a five thirty pm shutdown, should I change this: 30 02 * * * /sbin/shutdown -h now to: 30 17 * * * /sbin/shutdown -h now see also: Crontab Shut down command didn't work
2
votes
5answers
16k views

Ubuntu 14.04 Unknown Display

I have installed Ubuntu 14.04 in my machine(with Gigabyte motherboard), having an Acer 19" Monitor. Unfortunately its resolution not working properly. See the image. This is my xrandr -q output. ...
0
votes
1answer
3k views

glassfish: Authorization has been refused for credentials [user: admin] given in this request

On Ubuntu 14.04 Tahr and Glassfish 4.1, I managed to reset my glassfish master password as so: ejb@ix:~$ ejb@ix:~$ glassfish4/glassfish/bin/asadmin change-master-password Enter the current master ...
2
votes
0answers
208 views

How much context switching is too much?

I am running Ubuntu Server 14.04 on an Lenovo IdeaCentre d400. The load average is never under 1.0. So I started to take a deeper look. I do not find anything that could be responsable for this load. ...
1
vote
0answers
94 views

Is it possible to install packages from iso?

I browsed through the iso file for Ubuntu_14.04_LTS, I found that majority of data were contained in a single file: casper/filesystem.squashfs (922 MB). there is no *.deb files under ...
2
votes
0answers
72 views

How to get administrator rights?

I am the administrator and only user of my laptop with a new installation of 14.04. I created a bootable USB and when it is used I find this file "PRJ_20071023" that I can not read or delete. I get a ...
0
votes
1answer
447 views

Howto enable spellchecking in Canadian English (incl in LibreOffice) for all users / system-wide

It seems that no one gets the benefit of spell-checking in LibreOffice on our Ubuntu computers. We have them generally set up with Canadian English as default languages, but apparently there is no ...
4
votes
3answers
286 views

New admin account asking for a password?

I've made new admin account. I did not set a password for that account and it now asks me for the password. Since I can access the account as it automatically logs on when the laptop is turned on, can ...
1
vote
2answers
927 views

Run program as root without using sudo

Can someone help me to run a ".run" on Ubuntu 12.04 LTS. My problem is I want to execute this program as super-user, but I don't want to use sudo to run it. I just want to run with ...
0
votes
1answer
92 views

how to do administartive tasks from remote X SSH

I forwarded X over ssh. From unity-control-center I couldn't perform any of the administrative tasks like changing audio input, changing wifi network etc. How can I do them remotely. Its the same ...
0
votes
1answer
28 views

forgot "administrator's name'

I still have the password but I no longer have the name I used to create the administrator's account. As I'm a novice in all this, I'm not sure I can safely go root without royally messing things up. ...
4
votes
1answer
202 views

Is there a utility for hopping in and out of a CLI?

Lets say I've got a bit of server software. I start it up and it provides an interface on stdin/stdout that I can use to enter commands during runtime. I want to be able to start it up over SSH, exit ...
-1
votes
3answers
111 views

Can Ubuntu run without internet?

I have already installed Ubuntu on my laptop and I want to ask if Ubuntu can still run without internet.. Thanks!
0
votes
0answers
23 views

how do i fix this problem? [duplicate]

~$ sudo apt-get -f install E: Could not get lock /var/lib/dpkg/lock - open (11: Resource temporarily unavailable) E: Unable to lock the administration directory (/var/lib/dpkg/), is another process ...
2
votes
2answers
12k views

How to add my user account to admin group (13.10 desktop) [duplicate]

I was trying to extract a web template into the hosting folder /docroot on the web service, which is working, however I do not have permission to complete the action. I cannot stand being locked out ...