Questions about Computer Administration

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7
votes
4answers
21k 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 ...
1
vote
0answers
8 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. ...
2
votes
1answer
4k 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 ...
27
votes
5answers
2k 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: ...
3
votes
1answer
178 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 ...
3
votes
2answers
135 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Sadly, all the answers that Google turns up seem to be way out of date (Rapache for example no longer runs on Ubuntu it seems).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
13 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 ...
15
votes
4answers
660 views

Which logs should I pay attention to?

There are many logs in /var/log/ For a standard home installation, which ones should I be checking regularly?
0
votes
2answers
43 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
62 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 ...
0
votes
3answers
19k 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 ....
1
vote
2answers
78 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 ...
9
votes
1answer
15k views

ntpd vs ntpdate: pros and cons

In order to keep the time accurate on a Ubuntu system one can either: Run the ntpd (network time protocol daemon) which will run all the time and continuously adjust the system time when clocks ...
1
vote
3answers
111 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
2answers
28 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 ...
5
votes
2answers
208 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 ...
1
vote
2answers
132 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
218 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 ...
0
votes
1answer
181 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 ...
2
votes
4answers
7k 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
0answers
72 views

Restrict user with access home directory only on Ubuntu 12.04

I want to restrict the employees(users) using the computers in this company. How can I restrict user to their home directory to cannot see or use their the Devices, File System and Network on Ubuntu ...
0
votes
1answer
49 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
150 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
0
votes
1answer
225 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: ...
5
votes
1answer
4k views

Allow non-admin users to mount drives via nautilus

I want to give mount privilege to the non-admin users to mount the drives via nautilus. I don't want them to give other admin privilege. I also don't want to use setuid method. How can I achieve ...
0
votes
0answers
78 views

how to get jms connection factory details from the asadmin CLI for Glassfish

How do I get more specifics on jms/CrmConnectionFactory, using the get command, from the asadmin console? thufir@doge:~$ thufir@doge:~$ asadmin list-jms-resources jms/CrmQueue jms/CrmTopic ...
0
votes
0answers
17 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
993 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? ...
0
votes
1answer
119 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?
6
votes
4answers
18k 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
725 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
83 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
0answers
37 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
75 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
789 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 ...
44
votes
5answers
45k 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
69 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
45 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 ...
2
votes
1answer
132 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. ...
8
votes
2answers
6k 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
1k 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
27 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
133 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
73 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
55 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
55 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
221 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
247 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 ...
23
votes
1answer
66k 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 ...
37
votes
9answers
30k 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 ...