Ubuntu is a free open source operating system based on the Debian GNU/Linux distribution. Consider using http://askubuntu.com/ to ask questions about it.

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Copying an SSH ID to a server from a certain computer yields an error while the same command works fine from other computers

I get the following error message when trying to copy an SSH key to a remote server: ssh-copy-id -p*** ****@****.com Pseudo-terminal will not be allocated because stdin is not a terminal. ssh: ...
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5 views

How to install Getac V100 integrated drivers in Linux Ubuntu 14.04?

I just did a fresh install of Ubuntu 14.04 on Getac V100. I need help installing drivers for the GPS, touchscreen, Getac Utility, etc. I have all the necessary drivers saved. How do you install ...
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15 views

Wrong IP address present when connecting from localhost to localhost

I have a Linux server with Ubuntu installed on it. When I connecting to some service (MySQL, apache, icecast for example) from the same machine at address 127.0.0.1, they all show that I connected ...
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9 views

Cross-Distro NFS Mount Not Fully Writeable in Ubuntu

I'm relatively new to setting up NFS mounts and I'm trying to get things started in the AWS cloud. I ultimately want to have a CentOS box which serves as the NFS server and can have different sorts of ...
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16 views

How secure is it to use a image of an prebuilt Operating System?

I've bought a Banana Pi (single-board computer) (with ARM-CPU) to learn more about Linux/(L)ubuntu. I read that closed-source or prebuilt Software is problematic in terms of privacy/security. I ...
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19 views

Ubuntu 15.04: suspend from console without sudo

For years I have been able to suspend my Ubuntu-based machine from regular account using dbus-send --system --print-reply --dest="org.freedesktop.UPower" /org/freedesktop/UPower ...
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1answer
15 views

A few questions about Chromebooks

My Win8 laptop gets older by day, plus its battery life is less than 20 mins. I need a light, portable device with long battery life. I am running a web development agency, doing some coding, cPanel, ...
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7 views

windows 8 was updated to win 8.1 and now error with ubuntu 14.04 LTS

on a HP 255 laptop i had installed ubuntu over windows 8 it worked fine untill win 8 one day it was automatic updated to win 8.1 now there is a problem with ubuntu 14.04 LTS error: uknow filesystem. ...
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8 views

No permissions on my own user folder after settings the “permissions” option in my mount at fstab

I have a dual boot setup on my computer which is Windows 8.1 and elementary OS. I edited my /etc/fstab file to mount the Windows partition on boot so I can share files between the two operating ...
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7 views

Linux, file contents from Redis query

I want to make a linux file whose contents are the result of a Redis query. Why? I want to multi-tenant a LAMP app. The LAMP app's configuration is in a file. Rather than fiddling around with ...
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17 views

Ubuntu 14.04.2: sound behaves strangely

I just installed an Ubuntu-Mate 14.04.2 partition and my sound is behaving strangely. The first thing is that the audio jack in the back (connected directly to the motherboard) doesn't work. it ...
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14 views

fglrxinfo shows wrong data for graphics card

I'm trying to set up a linux partition running Ubuntu-Mate 14.04.2. I have an AMD Radeon R9 290 installed. I was able to successfully download and instal the catalyst drivers, but when I run ...
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11 views

Linux Ubuntu 14.04 virtual box full screen

I'm using Ubuntu 14.04 in VirtualBox, and my machine is installed Ubuntu 14.04. I'm having problems with the resolution Fullscreen. I have already installed the Guest Additional, but still can not get ...
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3answers
160 views

A guest Linux system sees a text file as binary with ls

I am copying a simple text file to a guest Linux system on VirtualBox through shared folders, but after the copy, the VM seems to think that the file is a binary (it shows up green in ls): Is there a ...
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20 views

Ubuntu 14.04.1 Trusty crashing / being unresponsive

Disclaimer: I am not an experienced linux user, and I am trying to diagnose a case where my Ubuntu goes away, and doesn't come back. The PC is a headless PC without keyboard and mouse plugged in, that ...
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1answer
5 views

/dev/xvda1 full , though there is no temporary files

I have AWS ec2 micro instance, suddenly it shows memory full. I have checked the folder using df -hcommand. The result is displayed below. Filesystem Size Used Avail Use% Mounted on /dev/xvda1 ...
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0answers
4 views

tun interface not working in ubuntu14.4?

I have problem making the tun interface on Ubuntu 14.04 work correctly. The commands lsmod | grep tun and sudo modprobe tun return nothing. Even the module, tun.ko.gz in /lib/modules/ and ...
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0answers
17 views

How to access a server on VMware from the web?

Here's what I have done: I set up an apache server on Ubuntu in VMware. I used the NAT config. I set up port forwarding. Now on the host machine, I can access the server using localhost. It ...
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1answer
36 views

In Ubuntu 14.04, how to disable wpa_supplicant looking for peer to peer (p2p) networks?

CVE-2015-1863 - people can maybe break into your computer from anywhere in radio range, by sending specially crafted P2P network management packets. The disclosure says you can mitigate the ...
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1answer
13 views

Exporting list of users and passwords securely in ubuntu server?

I have a project in which I'm creating users with random passwords for a class of students, and I want to give this list to the teacher so he can distribute the user:pass to each student. What is the ...
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1answer
21 views

Unable to make ODBC connection on Ubuntu 14.04

I usually access an ODBC connection through a CentOS server, and I'm trying to make the same connection locally on my Ubuntu Trusty laptop. So far as I can tell I've duplicated everything properly ...
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8 views

debugger detected - please disable it and restart the application wine

I am using wine on Ubuntu 14.04. When I try to launch an installed app via wine it shows the error message debugger detected - please disable it and restart the application How to solve this?
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1answer
9 views

how to get the missing file sha256?

I am trying to run some script on Linux Ubuntu Precise Pangolin (12.04), x86_64 machine, and it complains that the file /sbin/sha256 is not there. I can setup in the script, where that file is, so ...
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10 views

Lost trying to set up mail server forwarding. iRedMail Roundcube Mail

I'm rather new to linux, setting up email servers, and programming in general. I'm using AWS ubuntu to create an iRedMail email server. I have the basics set up but I can't figure out how to set up ...
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+100

Google Chrome - Mouse Not Changing

I'm currently running Ubuntu 14.04 LTS (not in a VirtualBox) with Chrome, and I have a interesting issue. Currently there is a solution to a similar problem listed here [1] and here [2], but my ...
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19 views

Ubuntu as a separate OS v/s Wubi

Due to some hardware problem, I am unable to use both my DVD drive and the bootable USB stick to install Ubuntu as a separate OS alongside Windows 7. I came across WUBI. I was wondering if there would ...
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4 views

Ubuntu Server 12.04. Software RAID1 state degraded with a spare drive

After a disk failure, this is the output of mdadm --detail /dev/md2 in my Ubuntu Server 12.04: /dev/md2: Version : 1.2 Creation Time : Thu Dec 27 10:51:42 2012 Raid Level : raid1 Array Size : ...
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22 views

Need graphics/display drivers for Intel S1200v3RPS board for Ubuntu 12.x, 14.x

I am really stuck with this... Simply cannot Edit: increase (I can change but not increase) the display resolution. Stuck on 1280x1024. xrandr gives "Failed to get size of gamma for output" ... Tried ...
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17 views

Very high write latency with Intel 530 180GB SSD and Ubuntu Server 15.04

I just put together a new "server" with an Intel NUC5i5MYHE, an Intel 530-series 180GB m.2 SSD, and 16GB RAM. I am having a rather severe problem with writes to the SSD having very high latency. The ...
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9 views

Backup strategy for LXC system [on hold]

I have an Ubuntu server running several unprivileged LXC containers - mail, web, dns, etc etc. All the containers are stored with in the host machine's "LXC" user that I made. What's the best backup ...
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0answers
17 views

PHPBrew: Call to undefined function pg_connect()

I installed PHPbrew on my Ubuntu 14.04 desktop to be able to switch to PHP 5.4. This works, and Apache is now using 5.4. However, when I try to connect to the Postgresql database server, I get the ...
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21 views

windows 8.1 won't boot after allocating free space from C drive

using amoei partiton manager I allocated free space from C drive in order to setup ubuntu 14.04 in dual boot. It took half an hour to allocate free space however, when my PC restarted back it refused ...
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1answer
15 views

PuTTY “Incoming packet was garbled on decryption” and other errors

I've got Ubuntu 14.04 LTS installed in VMPlayer 6 on Windows XP SP3 - I created this using the mini.iso + OpenSSH Server. I can successfully SSH in via its NAT VMNet8 address 192.168.181.128. After a ...
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1answer
7 views

Link-local (zeroconf) networking with multiple hosts/interfaces

I have a machine (hostname foo) with two wired network interfaces, eth0 and eth1. When I connect another host bar to one of them (eth0), I can see in either one's NetworkManager that it's using ...
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7 views

Unable to login to Openvas

I am running Ubuntu 14.04. I have installed OpenVas from Mohammed Razavi's ppa. I have added the ppa by apt-add command, and followed the instructions described on page. Now, when I try to login using ...
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1answer
27 views

Core2Duo T5870 unable to run 64bit Vmware Guest

I currently own a Core 2 Duo T5870. People said that its a 64 bit processor, and I am able to install and run 64 bit Windows 8.1 on it. But when I try to run Ubuntu 14.05 64 bit on VMware Workstation ...
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0answers
15 views

HDMI resolution still stuck at 640x480 on a Samsung TV

I thought Ubuntu will be easy but not for novices like me. I installed Ubuntu 14.04 on a Lenovo X1 Carbon. I have tried all the examples provided on the Ubuntu site but cannot seem to get my HDMI2 to ...
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1answer
22 views

How to remove Windows 8.1 and install Windows 7 without harming Ubuntu?

I am currently running Windows 8.1 alongside Ubuntu 14.10. I want to remove Windows 8.1 and replace it with Windows 7 without harming my Ubuntu. So that my final result should be, Dual boot running ...
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5 views

Lighttpd: Activate User Directories

I'm failing to activate user directories for Lighttpd. I already run following command to activate user directories.But unable to use them from my browser. # As root % lighty-enable-mod userdir ...
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0answers
10 views

Sharing vmware shared folders between VMs

In vmware shared folders document, it says "With shared folders, you can easily share files among virtual machines and the host computer. " So it is OK to share the same folders among different ...
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0answers
12 views

home folder empty after schroot remove

I was trying to backup and refresh my root server. (Update everything, delete unused files etc.) I uninstalled schroot because i thought i don't use it anyway. Afterwards i started the backup ...
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1answer
28 views

ssh and scp works but not WinSCP

I have a ubuntu server with 3 user accounts (root, user1, user2). user1 has access via WinSCP, scp and ssh. No problems here. Then I've created another user2 but with this user I can't access the ...
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1answer
19 views

Allowing remote connections for MySQL on Ubuntu 14

I am trying to connect to MySQL using a program called Heidi, I want to use this instead of phpmyadmin. It's better than phpmyadmin and I figured it would be more secure than going to ...
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0answers
55 views

Flash 64-Bit UEFI on Intel Baytrail Tablet

Is it possible to flash a 64-bit UEFI on an Intel BayTrail Tablet which currently has a 32-Bit UEFI? I tried to install a 64-Bit Ubuntu 14.04 (which surprisingly worked) but after the installation my ...
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1answer
24 views

Partition has less shrink space than expected

I have a dual-boot OS setup with Windows 7 and Ubuntu. In the picture below, (C:) 376.14 GB is Windows 7, and Recovery (D:) is 21.87 GB is its recovery partition. I'm not sure what SYSTEM 300 MB is, ...
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External video card prevents liveUSB bootup

External video card prevents liveUSB bootup Whenever I attempt to boot any Ubuntu liveUSB with a PCI video card installed, I see the initial ubuntu screen then it reverts to a text screen with the ...
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3answers
117 views

Telnet : How to get [user@hostname userFolder]$

I'm using ubuntu 14.04 LTS and i have successfully configured a telnet server. When i logging into telnet server i always get the path(int the terminal) as username@hostname:~/Folder_Name$ I ...
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1answer
19 views

How to run setup command in ubuntu [on hold]

I want to assign IP address via terminal. But when I try to run the setup command from root user, it shows error message that "Setup command not found". I also tried system-config-network but the ...
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0answers
18 views

Windows 7 screen not displayed after installing Ubuntu

I bought a new Lenovo laptop with DOS and I wanted to make it dual boot (Ubuntu 14.04 and Windows 7, both 64 bit). I took the following steps to install both systems: Installed Windows 7 OS ...
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11 views

Issues with git on Hyper-V Vagrant box

I am running Ubuntu 12.04 on a Hyper-V box with Vagrant on Windows 8.1. I can git clone all of my smaller repositories from BitBucket and Github, but I have a repository that is decent sized (>10MB) ...