Ubuntu is a Linux distribution with an emphasis on ease of use and installation. Note that http://askubuntu.com is specifically dedicated to Ubuntu questions.

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Setting Solarized colors on a Vagrant Ubuntu Box

I am trying to set the colors of my Ubuntu Box to match the 16 colors palette of the Solarized color theme. I have installed Ubuntu 14.04 Server, no GUI option enabled. When I ssh into this VM and I ...
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20 views

Why isn't Firefox 33 use GCM on our webserver?

We have a webserver (Ubuntu 12.04) with apache2 2.2.22-1ubuntu1.7. From client side with openssl: $ echo QUIT | openssl s_client -connect OURSERVER:8080 2>/dev/null | egrep "Cipher is|Protocol" ...
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1answer
13 views

Cannot change vncserver default geometry

I'm using Ubuntu 12.04 (I think it's desktop...) and running vncserver to connect to it remotely. I can successfully set the resolution if I use the -geometry flag when starting the server, but I ...
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27 views

Ubuntu apt-get errors: “has no installation candidate” or “Unable to correct problems, you have held broken packages”

I've got 2 ubuntu VM's running on windows 8.1, one ubuntu 12.04 Server and one ubuntu 12.10 Desktop. I get errors with both when trying to install openssh-server (and other software): Server: sudo ...
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6 views

Receive multicast on any source

I'm using Ubuntu 12.04.5 LTS for IPTv multicasting. If i use same Source-IPv4 address then I can receive stream over multicast from the sender. If I've different Source-IPv4 addresses on sender and ...
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9 views

Any one help me to configure LDAP in centos [on hold]

I need to configure open ldap server in centOS and client in ubuntu. can any one help me
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7 views

Why can't I start a VNC session using the randr flag?

I'm using Ubuntu 12.04 (I think it's desktop...) and can successfully run vncserver (which ultimately links to /usr/bin/vnc4server) and connect with my client, and I can also add the -geometry flag ...
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10 views

wireless adapter doesn't show up in iwconfig after unload and reload its module

I unload and load the module which I suppose to be the one for my internal wireless adapter, $ sudo rmmod iwlwifi $ sudo modprobe iwlwifi My internal wireless adapter isn't show up in iwconfig, ...
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42 views

Why does my wlan0 stop working?

A few minutes ago, my internal wireless card wlan0 on Thinkpad T400 starts not working. This always happen after a while (between half an hour and several hours) from starting Ubuntu 12.04, especially ...
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1answer
12 views

Real time show the max temperature outputed by sensors?

Is it possible to extract the maximum temperature from the output of sensor, and real time update it, and show it somewhere on desktop of Ubuntu 12.04? I know psensor is to do that, but its version ...
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1answer
87 views

Why “backporting process does not consider upstream releases”?

From http://opensourcehacker.com/2013/03/20/how-to-backport-packages-on-ubuntu-linux/ backportpackage will download the latest version of the package from Ubuntu archives. The latest ...
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2answers
56 views

Why does this Shell script fail as cron job [on hold]

I have the following in a shell script, when I run this script it works but when I put this as a cron job it does not work(nothing happens!). How come? script #!/bin/bash ...
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1answer
28 views

When will we use apt-get to download source? [on hold]

In what situation, will we like to use apt-get to download source? Can's we install from binary installation by apt-get too? If we are to install from source, can't we download source from its ...
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20 views

Possible not restore cpu frequency after suspending and waking up?

When I suspend my Ubuntu 12.04 and wake it up, the cpu frequency I set by clicking indicator-cpufreq on the desktop panel will be restored. I wonder if that is a bug or some design? Is there a way to ...
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2answers
42 views

Increasing performance of clear text file reads

In our bioinformatics application we have large files (up to 900MB, typically 100MB). These files contain a clear text representation of a genome, and are essentially a 1 line file with a sequence of ...
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1answer
30 views

Softlink in rc0.d is working on poweron rather than shutdown

I want to run a script on poweroff in Ubuntu. so I made a script, placed it in init.d & made a softlink in rc0.d with name S36xyz. my script is working perfectly when I run it in terminal. so ...
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1answer
26 views

How to test new kernel releases ?

I am using ubuntu 14.04 with linux kernel 3.13.0-37-generic . I know that the latest stable release of the kernel is 3.17.01 and want to test it. Can I test it on my system without blowing away my ...
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1answer
23 views

Resize of VirtualBox Screen?

I've recently installed the Guest Additions CD on my windows VirtualBox running Ubuntu 14.04. It was working great for a while - screen resized automatically, etc. However, when I turned off my host ...
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20 views

My Ubuntu won't recognize the command ./configure [closed]

I have recently purchased a computer off of my sister that she wiped and loaded with Linux. Now that I have it, I have no idea what I'm doing and need some help. I have been trying to install Unity ...
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1answer
22 views

.xsession and .xinitrc not executed at login

This is the content of my ~/.xsession: #!/bin/bash # Tray for skype, keyboard layout, ... trayer --edge top --align right --SetDockType true --SetPartialStrut true --expand true --width 10 ...
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1answer
25 views

Where should my authorized_keys file be if I want to ssh to `localhost`?

I have my public / private key setup, but I don't know where it should go. Should both these files be placed in ~/.ssh/ for my user?
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1answer
40 views

SSH Pub Key Login without Password

I am configuring an SSH Server on Ubuntu 14.04.1 Server Edition. The goal is to use public key authentication only and only permit certain usernames. My public and private keys are created and a ...
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1answer
22 views

mount command over existing drive, then deleted

So I had a directory sitting on /dev/sdb1 I umounted the drive, moved the backup to sdc1 and restarted the server, still can't see the files...
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19 views

strange network hangs [closed]

I have a linux home server. It is a Asrock ION330, with Nvidia Chipset, running Ubuntu 14.04 LTS I has been working flawlessly during years, but since June it has been suffering some kind of strange ...
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51 views

failure joining samba AD domain over a slow connection: NT_STATUS_IO_TIMEOUT

Running Ubuntu with Samba 4 (Zentyal 3.5) Trying to join a new ADC (additional domain controller) to an existing PDC. Unfortunately I am getting an error, and I THINK the error might be caused by ...
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70 views

Intel HD 4600 graphics card not supported in Linux Mint 17

I have just installed Linux Mint 17 on my desktop computer with a Intel HD 4600 graphics card. Unfortunately it only supports a low resolution of 1920 x 1200 which looks horrible in contrast to the ...
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2answers
185 views

Installing Ubuntu 14.04--Grub Rescue Error after failing to turn off secure boot [SOLVED]

I am not able to start the operating system. Whenever I try to start the operating system it shows the following error: file /boot/grub/i386-pc/normal.mod not found Entering rescue mode... grub ...
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1answer
34 views

Configuration error: Iberty library not found

I am trying to install BAP: Binary Analysis Platform in ubuntu 14.04. I am getting this error: configure: error: Iberty library not found". Can anybody help me regarding this error?
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0answers
10 views

Avoid -dbg_version packages on apt-cacher-ng server

We have created a apt-cacher-ng server to provide cached packages to our users that have Ubuntu 14.04 installed. Combined with the cached packages, we are doing a weekly "mirror" of some Ubuntu ...
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9 views

How to see mounting files in target for iscsi?

I am doing iscsi target and initiator, I was mounted files in initiator side using target disk(LUN), so how to see the file or folder in target side?
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2answers
43 views

Access USB drive on Ubuntu server

I'm currently using a Ubuntu 14.04 server with command line access only. My .html files are on my Windows and I want to transfer them. What is the path in my Ubuntu server to get into my external ...
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2answers
114 views

How to uninstall all related packages to a specific one? / Ubuntu

Recently I asked to my hosting provider to reload the OS to Ubuntu 12.04 64 bit minimal assuming minimal would have the minimum required packages installed, but I realized that mysql was installed so, ...
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1answer
54 views

dpkg cannot find ldconfig/start-stop-daemon in the PATH variable

I was trying to install bsd-mailx utility the package got installed however I am wondering about the error. This is the error I get: Preconfiguring packages ... dpkg: warning: 'ldconfig' not found ...
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1answer
40 views

Ubuntu - Error Coping Folders with a Space at the end of the Folder Error [closed]

Hello Mighty Keyboard warriors. I have a problem that is kinda of killing me. The Situation: vsftpd server with the Following config File (http://pastebin.com/8AVZ9WGK) home/user with default ...
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0answers
15 views

what is the command to synchronize samba4 ADC -> PDC

I have another question on here that is almost exactly the same, but it had a lot more details and kind of went off track (and I never got my answer). So I'm trying again. I know that this command ...
2
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1answer
26 views

Installing Fedora with windows 8

I have a laptop with windows 8 and I installed Ubuntu and it is now dual booted. I want to replace the Ubuntu with fedora. When creating the partitioning the fedora gives me error : For a UEFI ...
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36 views

Problem in Ubuntu 14.04 monospace font

Up to recently, I was using normal fonts. But suddenly my fonts for code became weirder. I don't know what happened. My font for monospace is set to Ubuntu Mono. I tried setting it to Courier with no ...
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27 views

Google Play Music media keys not working 14.04?

Whenever I try pause or next/previous on Ubuntu 14.04 or Ubuntu Gnome 14.04, nothing happens. No other music apps are open, and I have it set to global in Chrome. What should I do?
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1answer
27 views

Focusing the Current Window & Minimizing All of the Others

Is there a way to focus the current window and minimize all of the others through the command line? For example, if the active window is Chrome, then if I execute this command, it will minimize all ...
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0answers
9 views

Hiding all Normal Windows in Command Line [duplicate]

Is there a way -- from the terminal -- to hide all normal windows (I'm using ubuntu)? In particular, I'm looking for the equivalent Windows + D. That is, if you execute the command once, then all of ...
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0answers
50 views

Tons of unknown connections in nethogs

I am seeing hundreds of different connections to the same ip and port scrolling by when running nethogs. Occasionally the foreign IP and port will change (not always 80, but sometimes). I've noticed ...
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0answers
43 views

Explanation of the building process of the kernel on Ubuntu/Debian systems

I'm getting into Linux kernel programming and I have successfully built my own kernel several times now. However, I have done it using step by step guides found from the internet and I don't really ...
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1answer
75 views

Is there a tablet for programming in the market today? [closed]

I need a tablet that could do Python (CPython), Java, C, C++ (also embedding) programming. So suppose that I would use android arm tablet for that and install Ubuntu on it. What I don't know would I ...
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1answer
41 views

Uninstall application under /opt?

I have uninstalled acroread 9.5.5-1precise1 in software center, but those under /opt/Adobe/Reader9 seem intact: /opt/Adobe/Reader9$ ls * bin: acroread Browser: HowTo install_browser_plugin ...
2
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1answer
112 views

My cloud server came with PermitRootLogin without-password, is it normal?

I was just wondering if it is normal that in the Ubuntu 14 provided by my cloud hosting company,there is this configuration in the file /etc/ssh/sshd_config : PermitRootLogin without-password ...
2
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1answer
61 views

Why doesn't Ctrl+R do anything in Ubuntu's terminal? [closed]

The keystroke Ctrl+R is important to me because it's the redo command in vim. However, it seems to do nothing at all in Ubuntu's terminal. When I press Ctrl+V and then Ctrl+R, nothing is registered at ...
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487 views

Nvidia driver not working on latest kernel (3.17) and Ubuntu 14.04

I'm pretty new to kernel hacking. However, I have built my own kernel before (3.16) and it works. Now I tried upgrading to the latest kernel (3.17-rc7). I configure the kernel using the config file ...
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2answers
126 views

Using only 3.3GB but I have 8GB RAM even on Ubuntu 14.04 64bit

I have 2x 4GB(8GB) RAM installed on my motherboard and BIOS/UEFI can confirm it, but on Ubuntu 14.04 64bit only has 3424776kB or 3.266120911GB. uname -a returns: 3.13.0-36-generic #63-Ubuntu SMP Wed ...
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1answer
65 views

Commands for successful domain controller replication on Ubuntu / Samba4 / Zentyal

I have a Primary Domain Controller (PDC) and an Additional Domain Controller (ADC) running on two different machines at two different locations connected via a VPN. Both are running a version of ...
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1answer
95 views

Does Linux support the ThinkPad Helix 2?

I'm holding out for the ThinkPad Helix 2, which has a detachable tablet as a screen. It comes out later this month. I've heard that installing Linux on bleeding edge technology can be problematic ...