Questions about Computer Administration

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1
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3answers
3k 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. ...
17
votes
5answers
562 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. It's basically a strategy question: ...
0
votes
0answers
59 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
0answers
13 views

How to prevent user from closing applicanions

i would like to see your thoughts on this problem: i have a computer class with 5 machines, teachers will need to play audio/video files, run presentations, surf the web, have access to home directory ...
0
votes
1answer
168 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? ...
1
vote
1answer
3k views

Is there a central configuration tool for ubuntu such as yast on opensuse?

In openSUSE there is a set up tool called YaST working on GUI and command line. Is there such tool for Ubuntu for instance on YaST one can configure samba and the services. Here is a picture for ...
0
votes
1answer
66 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?
0
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3answers
14k views

Is it possible to install Ubuntu through network?

I would like to install Ubuntu for almost 120 users. But it's very difficult in using USB and drives. please suggest ....
6
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4answers
16k views

Deleted Myself from Admin Group - Now Getting Error usermod: cannot lock /etc/passwd; try again later [duplicate]

Possible Duplicate: Cannot lock '/etc/group' in recovery mode I have a laptop with Ubuntu 11.10 that is shared between myself and two other family members. My user id was setup as ...
-6
votes
2answers
653 views

How to do sysadmin on Ubuntu [closed]

What are the most important Ubuntu sysadmin tasks, are there any tools for that? How about a tool with a schedule?
0
votes
1answer
37 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
76 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 ...
7
votes
2answers
14k views

What server control panels are available for Ubuntu Server?

As a dedicated Ubuntu server or as a VPS, I am looking for a web control panel, something like cPanel which is something like a web administrator for a server. I have not used any on Linux since I do ...
0
votes
0answers
18 views

Trying to implement NIS, portmap is not present

I am trying to follow directions from the Ubuntu NIS howto: https://help.ubuntu.com/community/SettingUpNISHowTo It fails at the step /etc/init.d/portmap restart portmap does not exist (during ...
1
vote
0answers
31 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
541 views

HELP! I'm locked out of all Ubuntu accounts

I was using these commands in terminal: sudo apt-get install gksu gksu nautilus I needed to move some files from one account into another & then I wanted to rename some of the accounts. I got ...
39
votes
5answers
40k views

How are administrators supposed to read root's mail?

What is the Ubuntu way for system administrators to receive system notifications, which typically take the form of e-mail sent to the root account? Examples of such notifications are the output of ...
0
votes
1answer
40 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
33 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 ...
1
vote
1answer
85 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
92 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
8
votes
2answers
5k views

I unexpetedly deleted administrator account and the other accounts are asking root password

I unexpectedly deleted my user account (the only administrator for the machine). I have another account which is standard account now i cant access my hard disk or anything with that standard account ...
0
votes
1answer
680 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 ...
0
votes
0answers
19 views

Website sometimes won't load

I'm not sure if this is the proper forum that I can use to address my concern. I was working on a server and suddenly the client reported that the site stopped to load awhile ago and now it's working ...
2
votes
0answers
82 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. ...
0
votes
0answers
40 views

System - Administration tab is missing

I am told that I need to go to System - Administration - however, I do not have Administration under my System Tab. 14.10 Ubuntu.
1
vote
0answers
45 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
44 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
128 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
205 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 ...
19
votes
1answer
55k views

How do I add a network printer in Ubuntu 12.04?

I know the name and the IP address of a network printer, but I can't seem to be able to search by IP address or name. Ubuntu developers love to move things around to make it difficult for users, so ...
0
votes
0answers
51 views

Graphical pkexec require username and password

I am wondering if there is a way to have the graphical authentication part of pkexec ask for a username as well as a password instead of just a password. The computer I am trying to get set up is on ...
34
votes
9answers
26k views

How can I make shutdown not require admin password?

If more than one person is logged in on my computer, Ubuntu requires super user authentication when shutting down the computer. How can I make it so that any user can shutdown the computer without ...
2
votes
1answer
3k views

How do I check the up time in Ubuntu 12.10? [duplicate]

Possible Duplicate: See computer’s uptime and history Well sometimes for testing purposes I want to know the up time but don't know where to look. How do I check for this?
26
votes
7answers
8k views

See computer's uptime and history

I was wondering if it is at all possible to find out when the computer was switched on, what files where accessed what folders were opened, what programs run and when the computer was resumed and put ...
1
vote
2answers
457 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
123 views

Is there a way to get the administrator lock opened? [duplicate]

I know that when a package is being installed, the root directory [I think?] gets an administrator lock and can't make an other installation at the same time. Is there a way to stop that ...
0
votes
1answer
42 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 ...
-1
votes
3answers
80 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!
4
votes
2answers
2k views

Which script rotates /var/log/auth.log?

I cannot figure out where /var/log/auth.log is rotated. I found the file /var/log/auth.log.2013-09-16 on my system, which contains log entries previously found in /var/log/auth.log. Where does that ...
0
votes
0answers
172 views

How do I administer, test and fix my RTL8192ce wifi card on the command line? It can't connect to router and external sites

I've been using a Realtek RTL8192ce wlan card on Ubuntu 10.04 and Ubuntu 14.04. Previously the built-in kernel module 'rtl8192ce' worked fine. There'd be some occasional, random blips, but I could get ...
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. ...
10
votes
2answers
46k views

How to give nopasswd access to multiple commands via sudoers?

Below is what I know: I have to add this below line in sudoers file to give rights to the user for particular task. user_name ALL=NOPASSWD: /usr/bin/apt-get install In this case I want to give ...
4
votes
1answer
196 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 ...
0
votes
0answers
20 views

Could not get lock /var/lib/dpkg/lock - open (11: Resource temporarily unavailable) E: Unable to lock the administration directory (/var/lib/dpkg/) [duplicate]

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 using it?
0
votes
0answers
63 views

nis user can't do su

I setup a nis client and its working fine but I can't do "su" as a nis user(Error: Wrong passwort - But it's correct). Also the login with the local root user is not possible. I only can login as root ...
0
votes
0answers
20 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 ...
7
votes
2answers
4k views

How can I set a global timeout for the screensaver?

I am trying to to set a global screensaver and blanking idle timout (with screen locking) that will affect all new user accounts. I noticed that gnome-screensaver in 12.04 when configured by a user, ...
0
votes
2answers
5k 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 ...
1
vote
1answer
36 views

What GID number assigning policy does have Ubuntu so I can asign my organization GID without conflict?

In order to assign fixed GID for departments in my organization, I would like to be sure not to choose an GID that would be selected in the future for another reason (like a new system group for a new ...