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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xhost + is not working with Oracle installation

I am trying to install Oracle on Ubuntu 14.04. I have followed instructions and now I am trying to start the installation. However, I am facing problems. If I run ./runInstaller command with oracle ...
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1answer
257 views

SSH Protocol mismatch

I have a very strange problem. I have two servers, namely daytona, which serves as a storage server with a raid array. I WOL it when I want to back up to it. The second server is testarossa which runs ...
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1answer
100 views

mysql-server-5.5 unmet dependencies each time running apt-get

Each time I run "sudo apt-get install package-name", the following error happened, even if I tried to install other packages other than mysql ones: You might want to run 'apt-get -f install' to ...
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21 views

Foobar2000 in Playonlinux cannot play common sound formats

I have installed Foobar2000 in Playonlinux (ElementaryOS) and all it can play are radio internet streams. All files give the error Unable to open item for playback (Unsupported file format): - even ...
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135 views

LightDM greeter simple prompt Xubuntu 15.10

I've got a problem configuring LightDM (version 1.16.5) under Xubuntu 15.10 such that the greeter only shows a simple prompt like user: __________ password: __________ without proposing users ...
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21 views

have very recent packages in CentOS

Normally versions of packages available in CenOS and Ubunti repositories differ, Ubuntu tends to have the latest-greatest versions, while CentOS is more conservative. Is it possible to add some repos ...
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0answers
22 views

Why can't I create a long video with openshot?

I am trying to render a video which I edited and saved with kdenlive, because kdenlive does not do a good job at rendering my video (which consists of music and static images). I am able to open the ...
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1answer
70 views

Want to print NULL if value is not present as awk output

I am trying to print a tshark command output using awk below is my command: tshark -r "test.pcap" -odiameter.tcp.ports:"1234" -R 'diameter.cmd.code == 272 and diameter.flags.request==0 and ...
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9 views

How to enable source package download for a section of private ubuntu repository

We have created a internal ubuntu repository. It has a few custom sections which has packages that were custom built. Currently, no source packages are provided for download for the repository users. ...
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1answer
195 views

Trying to restart apache using Vagrant - “The apache2 configtest failed”

I have setup Vagrant (details below) and am just trying to start Apache so that I can get to a point that I can actually see a site in a browser, however when using sudo service apache2 start, I ...
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1answer
29 views

Binary executable from Debian to Ubuntu?

I compiled some big c++ programs with gcc 4.9 on Debian. I want to know if the executable binary code is compatible and safe also on ubuntu, or must recompile program on Ubuntu?
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30 views

Ubuntu is not listed on the GRUB

I installed Fedora23 on a GPT partition(also chose LVM option). There is no option now for Ubuntu on the GRUB list when I boot normally (without interfering). However, if I hit F9 on bootup and go ...
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1answer
142 views

Is there a way to know how much memory Linux Os is using?

I am looking for a way to know the size of the memory that Linux os is using (I'm not worried about the other applications memory size). I am using Ubuntu distribution (Ubuntu 15.10). Thanks for your ...
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1answer
39 views

How do I get an /HP Officejet Pro 6830 printer to work with Ubuntu?

I just hooked-up an HP Officejet Pro 6830 All-in-One Series printer. The install went w/o flaws. However, when printing from my computer, after printing several lines, the printing is squished ...
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39 views

Why does my camera not show up in /dev although it does in dmesg? (Possible Ubuntu regression.)

A while ago I could plug in my Canon via USB and it would get mounted as an external drive. Nothing has been reconfigured in the camera, but now if I plug it in $> dmesg [103943.225623] usb 1-2: ...
3
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1answer
48 views

How to limit port range in Ubuntu 14.04?

I want to limit source port range in my ubuntu machine upto 20000 , that means no Application should be able to use port higher than that.I have this command in mind iptables -A OUTPUT -p tcp ...
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1answer
35 views

How do I add megabytes to free space when creating partitions to dual boot ubuntu?

So I was using this manual to dual boot ubuntu: http://www.linuxandubuntu.com/home/dual-boot-ubuntu-15-04-14-10-and-windows-10-8-1-8-step-by-step-tutorial-with-screenshots I got into a conundrum when ...
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0answers
107 views

A stop job is running for LVM

I use full disk encryption which uses an LVM. It uses like this in lsblk: NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT sda ...
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3answers
92 views

How can I read a linux hard disk from Windows?

I have a PC with Ubuntu (I think it's 14.4). Pretty recently it completely broke down (motherboard (again)). I want to get rid of it, but on the hard disk there are a lot of photos I want to keep. I ...
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1answer
39 views

How can i Fix my media players?

I always face a problem with media application that depend on qt and MPlayer it happen when I run my device for a long time I see error. This is photo in Linux mint 17.2 and Last question the same ...
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1answer
39 views

building docker images makes the Vagrant-managed VBox VM freeze

Folks While researching utilizing Docker images for web apps development I've stumbled upon the following issue. (all commands found bellow are executed inside a Vagrant-managed VBox vm) Create a ...
2
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1answer
44 views

Ubuntu: Process vfs-worker taking all CPU resources

My Cloud9 (Ubuntu-based cloud IDE) began to be unresponsive after I tried to save some files (they didn't save to my cloud workspace). It shows 100% CPU utilization and a process that takes all CPU ...
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0answers
30 views

Samba system calls for reading/writing files from/to NAS issued from Windows desktop client

Windows desktop machine is connected via 1GB Ehternet cable to personal NAS (under development) with Ubuntu on it. While reading and writing files (> 1GB size) from/to NAS strace was conducted to ...
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1answer
51 views

Cannot install PC BSD

Currently I am using Ubuntu. I wanted to try PC BSD so downloaded 10.2. On trying to install it on a separate primary partition(so that I can dual-boot) I am getting the following error. Do anyone ...
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1answer
67 views

Limiting user SFTP only to their home directory

Ubuntu 14.04 I'm trying to restrict all users of a certain group to their home directory. They should be able to SFTP to the directory and read/write whatever they like within there. I have ...
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39 views

SSH installation error in Ubuntu running within VirtualBox

New to VirtualBox and VM, I am running Ubuntu with 14.04 on latest VirtualBox. I have 2 network adapters: Host-only NAT I run the following command to install SSH: $ sudo apt-get install ...
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1answer
41 views

Enable SELinux on boot

I'm on Ubuntu 14.04 and I've just installed SELinux via apt-get install -y selinux. I understand that Ubuntu uses AppArmor by default and I understand that SELinux removes AppArmor, but I'd like to ...
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1answer
61 views

Linux on old Dell computer

I am very new to Linux (I've really never used it before), but I'd like to put Linux on an old computer I have - a Dell Latitude D620 which I think is from about 2001 since it was running XP. I tried ...
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2answers
131 views

Execute browser as root

I need to run my browser as root, in order to gain Citrix receiver, which is executed within the browser, permissions to access and edit the hosts file. Otherwise I get this error: You do not ...
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0answers
39 views

Authentication failure with postfix and sasl using sasldb

I'm really not sure what my issue is. I've checked several guides, and I am sure I have set this up correctly, including config fails, restarting the service, permissions etc. OS is Ubuntu Server. ...
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0answers
11 views

Folder Permission on Storage Mounted by User [duplicate]

I'm having trouble with an external hdd. Let us say there're two users; user, guest. Let the external storage be called hdde. User has automagically mounted hdde in Ubuntu (for some reason it's ...
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0answers
47 views

Possible to update Ubuntu 32-bit to 64-bit? [duplicate]

Can I update Ubuntu 15.04x32 to 15.04x64 or must it be a new/clean 64 bit install ?
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1answer
52 views

How do I create a shortcut for a script, and run it as a .desktop file?

I have installed Teamspeak onto my Ubuntu 15.10 system. Teamspeak requires a script to be ran in-order to start. How can I create a symbolic link that is a .desktop so I can open the .desktop file, ...
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1answer
28 views

How to pass array variable to function and solve out the no command found error

I'm new in this so please anyone can help me to figure out this problem, I've write all code but when i run this command in shell by using ./work.sh host.txt here host is a text file from where we'll ...
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2answers
38 views

“USB HDD” option replaced by “ubuntu” in BIOS, now cannot use USB boot media

So, being foolish old me, I tried to use os-uninstaller to remove my Windows installation and make way for Arch Linux. Unfortunately, now nothing on this computer boots, and I cannot even boot from a ...
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1answer
121 views

How to make the DRM-protected video stream of Amazon Video run on Debian Jessie?

I want to use Amazon Video on Debian Jessie but can't manage it to run. I have the following hardware setup: CPU: 2 cores at 3 GHz (Intel Core 2 Duo E8400) RAM: 6 GB RAM GPU: NVIDIA GeForce GTX ...
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0answers
66 views

Installing a dual boot environment of Ubuntu 14.04.3 LTS and Windows 7

While installing Ubuntu "along side" my current Windows 7 OS, from a USB drive, all went well until "Allocating Drive Space". I used the default allocations of Windows Recovery Environment: 11.3 GB ...
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0answers
193 views

pfsense: squid transparent proxy not working in bridge mode

I have installed the latest version of pfsense. I have setup it up in bridge mode after creating a rule any for lan and wan respectively. I have setup the squid on transparent proxy mode with ssl ...
2
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1answer
305 views

`ERROR: Failed to build gem native extension` while trying to install compass

I am using Ubuntu 14.04 I tried this command sudo gem install compass and it gave me this error: Fetching: multi_json-1.11.2.gem (100%) Fetching: compass-core-1.0.3.gem (100%) Fetching: ...
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0answers
28 views

How to share common configurations amongst Nginx server blocks?

Hosting multiple sites with the same Nginx, and a lot of them share common configurations. Such as protection against POODLE and even entire sets of redirects. I tried using the include directive but ...
2
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0answers
57 views

Installing Expect and TCL

I downloaded the source for expect5.45, and am attempting to install it. tclsh is on the system at /usr/bin/tclsh, but I'm not sure if that means the machine also has "tcl" installed? The ...
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1answer
27 views

Expanding Linux Partition

I am running ubuntu 14 on my laptop, the laptop is normally windows 8 but it is dual booted with ubuntu. My ubuntu partition is 50gb and I know that I have 500gb free space which is wasted on my ...
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0answers
15 views

How to implement progress bar as Application Indicator?

does unity-panel support panel applets, similar to DBus-based panel applets of gnome and mate? I know about ApplicationIndicators specification, but they are associated with square icons for me. Is ...
2
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3answers
77 views

check if java process is running and re-run if it is not running

On ubuntu 15.04, I am running java app through vnc sessions. I have 8 defined sessions that are started during system boot. My question is, how do I create a script that checks to see if the process ...
3
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1answer
53 views

Auto sudoers entry on ssh login by a non-sudo user

This problem I am facing in Gcloud VM (ubuntu 14.04 image). As a admin user, if I create another user say UserNew without giving sudo privilage to him. sudo adduser UserNew I carefully checked ...
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2answers
351 views

How to fix graphical issues with Qt applications? (dolphin:14635): Gdk-WARNING **: shmget failed: error 28 (No space left on device)

I'm on Linux Mint 17.2 Rafaela (i.e. Ubuntu 14.04) and all my QT-based applications have been ugly after an upgrade (text is scrambled, menu content disappear, cf. screenshot below). Environment $ ...
2
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1answer
74 views

Ubuntu live RTMP video streem

I'm trying to launch live(not ondemand) RTMP stream from ubuntu, but i succeed only with RTSP stream through VLC vlc -vvv ./videos/test.mp4 --sout ...
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1answer
343 views

Yowsup on ubuntu touch: --enable-jpeg requested but jpeg not found

I have been following this tutorial for trying to install whatsapp client on ubuntu touch. But while installing Pillow, it keeps resulting in error: ValueError: --enable-jpeg requested but jpeg not ...
1
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1answer
78 views

Ubuntu 15.10 mini iso preseed not reccognized

I downloaded an Ubuntu mini iso from the Ubuntu website and want to do a fully automated install. I created a preseed file(preseed) I created an image with this file in the iso. When i try to start ...
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0answers
53 views

How to Install redshift plasmoid?

Using Ubuntu 15.10 I am trying to follow the instructions here to install the redshift plasmoid GUI, and cannot find the redshift root directory, does anyone know where this should be located? I've ...