Tagged Questions

Questions about Computer Administration

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2
votes
1answer
354 views

Hardening my Ubuntu 10.04 OS against ungraceful shutdowns

There's a system that a customer has that runs our software that is just going to be powered off at arbitrary times. UPS is not an option because the unit is moved from place to place. Think of it ...
3
votes
1answer
3k views

How to define an environment variable systemwide with /etc/environment?

I am trying to set an environment variable system wide. Following the ubuntu site recommendations , I set it up to my /etc/environment file. The thing is when I log out and log in again, I have to ...
6
votes
2answers
3k views

What is a user-friendly way to log off other users?

What is the Ubuntu equivalent of this interface? I am looking for a user-friendly method that the owner of a computer can use to log off other users without having to restart. The case I'm ...
3
votes
1answer
670 views

Locking down Systems in a Computer Lab School for Orphans

I am helping out an NGO, called Orphans Found Fund, here in Arusha Tanzania setup a computer lab to teach students about Ubuntu and open source applications. I have installed Ubuntu 10.10 on all the ...
25
votes
7answers
7k 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 ...
4
votes
1answer
289 views

Guide or book for ubuntu server

Is there any detailed guide or book for Ubuntu server? For installation and administration. Free or commercial.
3
votes
2answers
230 views

Tutorial on making use of logs

I know I can find logs in /var/log/, they contain powerful information, but I don't really use them often (on desktop or server). Is there any good guide to learn how to make use of system logs on ...
9
votes
1answer
15k views

The list of running daemons

How to get the list of daemons and theirs statuses (stopped, running, crashed, etc) for each runlevel? Like rc-status in gentoo.
6
votes
5answers
558 views

Single administrator computer for systems with only regular account on network

How can I have systems with only a regular account with administrative tasks managed by a single computer? EDIT I simply want be able to add/remove software on all computers from a single system. ...
7
votes
2answers
523 views

What is a good starter Ubuntu book?

What is a up-to-date good book that talks about general usage of Ubuntu or Linux in general (but that applies to Ubuntu as well) ? Things like: what are the common commands (man, ls, etc.) basics of ...
0
votes
2answers
2k views

How to restrict users on accessing my machine through ssh and VNC?

I dont want other users to access my machine through ssh and VNC.How to restrict this?As a admin i want to view and access all other system through ssh and VNC. Also only for my system ssh access ...
11
votes
7answers
6k views

How to remove Change Desktop Background from right click?

I want to restrict users on changing wallpapers and themes. So can anyone say me how to remove Change Desktop Background option from right click? Note: I just totally want to remove that option ...
8
votes
1answer
562 views

how come sudo give root privileges for a user not in /etc/sudoers?

I just wonder how sudo privileges are found with ubuntu, from a technical point of view. Users with sudo privileges are not present in /etc/sudoers, so this looks a little bit exotic. Was the source ...
4
votes
3answers
2k views

I want a non admin user to install software. What commands do I need to add to sudoers?

I want to edit the /etc/sudoers file so that a non-admin user can install software via the Software Center in Linux Mint 10. The reason for this is that I want a user to have the capability to ...
7
votes
4answers
7k views

How do I enable GNOME system tools?

I am running Ubuntu 10.04 with GNOME 2.30.2. This is a VMWare workstation image provided by another company that I do not have support in this regard. I am trying to access the graphical tools for ...
5
votes
1answer
204 views

how to run applications on admin account while is not is use or active?

i want to have applications running (like deluge) in admin account even if admin account is not active or it's guest account or family account is in use. some times family account is in use and pc is ...
4
votes
2answers
260 views

Securing system admin account

As it is well known, it is recommended that the system administrator login to the system using a normal user (non-root). When the admin needs to do privileged tasks, sudo can be used to become ...
8
votes
2answers
2k views

ssh key administration for many users, servers

My company has some remote Ubuntu servers. The access to these servers is controlled by ssh keys. Managing these keys is quite a pain, especially when an employee leaves or joins the company. Is ...
3
votes
3answers
378 views

Which way is the best to manage a workstation from windows server 2008?

I mean, are there any tools to manage mixed networks with Windows and Ubuntu workstations from single Windows Server 2008? Some like GPO or Windows Managment Console.
0
votes
1answer
121 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 ...
8
votes
3answers
587 views

Remote administration of a server?

I'm going to install a ubuntu server to provide email, ftp and maybe webserver services too. I dont want to install a gui for the server, but I'd like to administrate it remotely. I was thinking in ...
15
votes
3answers
572 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?
21
votes
4answers
9k views

What are the common maintenance tasks?

When i was using windows, i used to run defrags, ccleaner and revouninstaller once a month to keep the system and the registry clean. I know ubuntu (and all linux distro) has a different system ...
37
votes
5answers
35k 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 ...
-2
votes
2answers
169 views

How can the rules that determine valid user passwords be changed? [closed]

Are there any particular rules on what a valid password is, speaking of length, upper- and lower and/or special characters, numbers, etc. and if so how they can be changed?
31
votes
10answers
23k 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 ...
5
votes
3answers
2k views

What Ubuntu server administration books does the community recommend?

What book would you recommend as a reference for Ubuntu server administration? I'd like to not limit this to server-edition. I'm biased toward development environments that need to strike a balance ...