Greatest Hits

8
votes
4answers
23k views

Setting PIdgin up for Lync2013

I having difficulty setting up pidgin to work with my company's microsoft 365's communicator lync 2013 (not 2010) account. I either receive a message stating authentication failed, or Incompatible ...
13
votes
6answers
47k views

What's the maximum amount of RAM I can use on an specific hardware

I've an Asus U31SD Notebook with an i5-2430M CPU. The Asus site says that the maximum RAM is 8 GB, but Intel's says my CPU supports 16 GB. What is the maximum RAM I can use on this system ...
9
votes
2answers
11k views

“intel_rapl: no valid rapl domains” message upon boot

I install fresh Ubuntu 14. 04 server under ESXI 5.1.0. During my installation I did not get any erorrs or strange things. My problem is when I boot machine at console screen I get messages like [ ...
10
votes
5answers
10k views

Can't shutdown and logout from top panel in Ubuntu 14.04 LTS

I recently installed Ubuntu 14.04. Shutdown and logout from the top panel are not working. They worked fine when installing the OS, but a few days back I installed fglrx drivers for my ATI graphics ...
15
votes
2answers
47k views

Connecting to ubuntu server via ssh externally

I have recently installed ubuntu server (12.0.4) and intend to use it primarily as a file server. I am completely new to linux so this is a pretty big learning curve. Yesterday I was able to ...
7
votes
3answers
25k views

How do I add a network drive to Plex?

So I've been looking around and can't find an exact solution to my problem. I dual boot Windows 7 and Ubuntu 13.04. I like Ubuntu and want to use it instead of windows. Everything was working on ...
10
votes
3answers
31k views

Where are the OpenVPN connection logs and configuration files?

I have problem connecting to OpenVPN server. Where are OpenVPN log files and how do I find the connection details?
0
votes
1answer
14k views

error: no such partition Entering rescue mode… grub rescue>

I am using Windows 8.1 and Ubuntu 13.10 as in dual boot. I have changed my disk size using disk management in Windows 8.1-- specifically I have clubbed another partition into local disc C in Windows. ...
5
votes
1answer
34k views

How to add a GPG key to the apt sources keyring?

Ubuntu Doc page says this: It is advisable that you add the Opera GPG key. wget -qO - http://deb.opera.com/archive.key | sudo apt-key add - Where do I add that? I want to take the advice ...
15
4
votes
5answers
11k views

Installing Mysql Workbench on ubuntu 14.04

I have installed MariaDb as its supported by Ubuntu community , mentioned in release note of latest LTS. After that I tried to install Mariadb-client , that too installed successfully, after that its ...
9
votes
1answer
22k views

Share wireless Internet connection through ethernet

I want to share the wireless Internet connection on my desktop with my old laptop, through ethernet. I have ticked the option "Make available to others" on both connections, on my desktop, but my ...
4
votes
2answers
28k views

How to fix Permission Denied (Public key) error?

While trying to communicate between my desktop Ubuntu 12.10 and Fedora 19 desktop, I am facing the error of Permission Denied (Public key). I am able to login through ssh from fedora to Ubuntu, but ...
9
4
votes
2answers
20k views

How to install Virtualbox from command line?

OK, I a am a newbie. For some reasons, I need to install Virtualbox. I see that I can easily install it using the Software Center, but I trust most the "apt-get install blahblah" way, because I find ...
26
votes
2answers
22k views

How do you run a 32-bit program on a 64-bit version of Ubuntu?

I have a 64-bit version of Ubuntu 13.10. I want to run a 32-bit version of a program. However I see ia32-libs is not included in 13.10. Is there a replacement package for this or what?
9
votes
2answers
30k views

Does Ubuntu-GNOME 13.04 Contain Gnome Classic Session?

If I understand right, Ubuntu-GNOME will be using GNOME 3. I was wondering if it also included Gnome Classic as well, or if I would have to go download it?
8
votes
3answers
41k views

How to remove GNOME completely?

I want make my installed Ubuntu as light as possible to launch only on 256MB RAM machine (VirtualBox)? So I'm thinking about removing GNOME and related components completely. How can I do that? This ...
18
3
votes
3answers
19k views

“Unable to locate package” while trying to install packages by apt

When I try to install any package through the command line, I get an error. Can anyone help me on this? $ sudo apt-get install <package> Reading package lists... Done Building dependency tree ...
2
votes
3answers
12k views

Can't create application launcher in Lubuntu 14.04

In Lubuntu 13.10 you could create a custom application launcher by right-clicking on the desktop and selecting "Create New..." then selecting the option, but in 14.04 this option is gone (now you can ...
6
votes
1answer
21k views

“wrong fs type, bad option, bad superblock” error while mounting FAT Drives

I am unable to mount any fat32 or fat16 formatted usb disks under Ubuntu 13.10. The thing here to note is that it is happening only with fat formatted Disks. ntfs, ext formatted external usb disks ...
16
votes
3answers
26k views

Can I use Ubuntu to diagnose hard drive or RAM problems in Windows?

This may be a crazy question, but here goes... My brother suggested that I could somehow use either a Ubuntu Live Boot CD or Flash drive or Kubuntu as a way to diagnose issues I'm currently having ...
13
votes
3answers
29k views

Is it safe to remove old kernels after installing the latest mainline?

I have installed the mainline kernel 3.10 as recommended here so that I can have my WiFi. I'm running into space problems as described here (dpkg configuration running out of space, having separate ...
5
votes
4answers
17k views

How do I get HTML5 h.264 Video working on Firefox?

According the the release notes for Firefox 26, h.264 video should now be working in Linux. It does also say the appropriate gstreamer plug-ins need to be installed. Does anyone know what these are? ...
8
votes
2answers
38k views

Help with creating symbolic link

I'm a little bit confused with how the symbolic links work. I hope someone can guide me in the right direction. I want to put a demo online from our software, which normally only runs locally on a ...
4
votes
1answer
25k views

Run executable file on terminal

I'm new to Ubuntu and currently on it because of assignment. I would like to ask few questions: 1) How do I make new command to run a shell script? For example, when you type "passwd" on terminal ...
7
votes
2answers
38k 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
10k views

Ubuntu 14.04 and Android, can't see phone on my computer

I have installed gMTP and tried to follow this tutorial to solve this problem: http://www.webupd8.org/2013/01/upgrade-to-gvfs-with-mtp-support-in.html But neither worked. I tried to connect both my ...
8
votes
1answer
35k views

How to install Qt4 in Ubuntu 12.10

I tried to use Qt5 but I have some problems while making Debian packaging process with Qt5 so I would like to have Qt4 on Ubuntu 12.10. How can I install Qt4.
11
3
votes
3answers
24k views

How to run mysql command from terminal?

I have the following sql command which I usually run in phpmyadmin by selecting the database, then running it in the command window. DELETE FROM `wp_posts` WHERE `post_type` = "attachment" However ...
7
votes
2answers
14k views

Is this a correct way to enable htaccess in Apache 2.4.7 on Ubuntu 12.04

In almost every solution of "How to activate htaccess", they say that the /etc/apache2/sites-available/default file needs to be edited. But there isn't such file in Apache 2.4.7 I read somewhere ...
7
votes
5answers
16k views

How to start Virtual box machines automatically when booting?

I have many Virtual box machines in my Ubuntu12.04, each time i shutdown or reboot i have to start them one by one. I wanna a help in writing script for automatically autostart the VBox machines ...
0
votes
3answers
31k views

Ubuntu Server 12.04 remote desktop access

I have an Ubuntu 12.04 server at home with GUI running. It does many things, like Apache virtual hosts (several WordPress sites hosted for me and my mates), Samba server, Mini DLNA server and some ...
8
votes
1answer
22k views

How to install numpy and scipy for python?

I am tired to try to install numpy and scipy for phyton 2.7.5, I need this version of python because my final goal it's to install class (http://class-code.net/) and montepython ...
11
votes
1answer
12k views

What does 'without password' mean in sshd_config file?

I just installed Ubuntu 14.04 on my server and I was setting up all my config files when I came across this in my sshd_config file: # Authentication: LoginGraceTime 120 PermitRootLogin ...
3
votes
4answers
11k views

Mount external Hard Drive with /etc/fstab on ubuntu 14.04 problems

I have been stuck for about two days trying to get this to work properly. I have done all of the following with still no luck. I'm trying to auto permanently mount to a 2 TB Seagate Central that is ...
4
votes
1answer
10k views

Xubuntu 14.04: Screen Resolution 1440x900, no xorg.conf or lightdm.conf

So I'm quite confused now by the fact that I read a lot of different solutions for a Screen Resolution problem, but none of them apply to my case (I think). So I'm running a Xubuntu 14.04 x64 and ...
6
votes
4answers
27k views

SSH error: Permission denied, please try again

I am new to ubuntu. Hence please forgive me if the question is too simple. I have a ubuntu server setup using amazon ec2 instance. I need to connect my desktop (which is also a ubuntu machine) to the ...
8
votes
3answers
10k views

Install ruby 2.0 without ruby-switch?

I'm finding the task of installing ruby 2.0 on the latest Ubuntu 14.04 rather frustrating. I'm aware that I could forgo the packages and install from source - but I'd far rather install a package - ...
2
votes
1answer
8k views

How to make VNC Server work with ubuntu-desktop without xfce

I have Ubuntu Server LTS 14.04 and I want to know weather it's possible to install vnc4server and make it work with ubuntu-desktop (and not xubuntu-desktop) without installing xfce4. I think I have ...
6
votes
3answers
11k views

What are the differene between fglrx and fglrx-updates?

What are the difference between the two ATI drivers fglrx and fglrx-updates, and what one should I install with a machine with an AMD R7 260X video card? I have found outdated information on the Steam ...
5
1
vote
1answer
10k views

Remote desktop doesn't works after upgrade from 13.10 to 14.04

I worked for many years with ubuntu nas server. Now last week I updated my server from 13:10 to 14:04. That in itself went well except Remote Desktop. The server is in the attic and I control it ...
5
votes
1answer
22k views

How to install xfce 4.12 on ubuntu 12.04

As per the question, how can I install xfce 4.12 on ubuntu 12.04 LTS (32-bit). I tried this ppa https://launchpad.net/~xubuntu-dev/+archive/xfce-4.12 But there werent any upgrade packages after ...
10
28
votes
3answers
12k views

What is the “sticky bit” (t permission) and why does /tmp have it?

The command ls -ld /tmp gives drwxrwxrwt 30 root root 20480 Mar 11 14:17 /tmp What is the letter t after the permissions? As far as I know /tmp is used to create temporary files related to ...
10
votes
1answer
16k views

Command to change the wallpaper in XUbuntu

Doing a google search reveals the command xfconf-query -c xfce4-desktop -p /backdrop/screen0/monitor0/image-path -s <image-path> The first time I run this command I got a message saying that ...
2
votes
1answer
19k views

Install Ubuntu 13.10 in dual boot with Windows 8.1

I have a laptop with installed Windows 8.1 x64. I want to intstall Ubuntu 13.10 (x64 of cause) in dual boot with it. I've made bootable USB stick (using unetbootin) with Ubuntu and tried to boot with ...
4
votes
5answers
32k views

How do I setup “name based” virtual hosts using Ubuntu 12.04?

How do I setup “name based” virtual hosts using Ubuntu 12.04? I have followed the instructions given at https://help.ubuntu.com/12.04/serverguide/httpd.html#http-configuration . I've done the ...
2
votes
3answers
10k views

cp - cannot create regular file : permission denied

I want copy to /lib/udev but gives error cp -f /tmp/ok_pcscd_hotplug.sh /lib/udev cp:cannot create regular file /lib/udev/ok_pcscd_hotplug : Permission denied I am root , but I can't understand . ...
7
votes
1answer
22k views

iptables log file,and how change it

I have this rule in my iptables: iptables -AINPUT -s 192.168.11.0/24 -j LOG My question is: Where is the iptables log file, and how can i change that?
1
vote
2answers
10k views

How to install NVIDIA drivers on Ubuntu 14.04

I'm trying to get Ubuntu 14.04 32-bit working on an old Dell Dimension 4300. I installed from a DVD and it installed fine except it was incredibly slow. I installed Compiz to remove window effects ...
8
votes
1answer
16k views

Where are the postfix log files?

I know this has been asked a hundred times. But I've done a lot of Google searching without success. My question: I want to log every activity of my postfix server. Neither the default file ...
7
votes
8answers
9k views

Pinging computers on local network: destination host unreachable

I have two ubuntu computers on a local network and neither one of them can ping each other. Every time I try I get the "destination host unreachable" error message. Both computers are able to access ...