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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25 views

Is this not a security issue to be connected to the internet during the installation of ubuntu?

Is it not a security flaw if you use internet connection while installing ubuntu?
25
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8answers
3k views

Swap partition size on a 64 GB RAM computer for memory-intensive work

I have 64 GB RAM and 240 GB SSD on my computer, which I'm going to use for memory-intensive calculations (machine learning, data mining, etc.). Most of the advice I found on the Internet are ...
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1answer
22 views

Using internet for ubuntu installation

There is an option to connect to the internet while installing ubuntu. is it not dangerous to use public wifi for that purpose? Is it secure to do so?
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0answers
27 views

Synchronizing two Git servers between companies

There are two companies. Each one has a Git server running. If company A checks in some code this should be updated on company B server and the other way around. The two servers should keep ...
0
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2answers
68 views

Trovebox (OpenPhoto) setup hangs/fails at final step 3

I've been following the install instructions found here about how to install and configure Trovebox on a Ubuntu server running Apache: Ubuntu 14.04 LTS Apache: 2.4.7 MySQL: 5.5.37 PHP: 5.5.9 ...
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0answers
24 views

open nebula virtual machine doesn't connect to outside internet

I'm working on open nebula I am trying to build a small cluster with two nodes but my virtual machines doesn't connect to outside internet. I am on a i7 16GB machine running ubuntu 14.04 that will ...
0
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0answers
18 views

Wifi not working Ubuntu

This problem was never there before. My wifi used to work fine. Suddenly, one day when I login, my mouse just disappears on login and my wifi has stopped working. Everything else was functioning fine ...
1
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1answer
28 views

grub having problems with Windows7 booting

I installed Windows 7 and Ubuntu on my laptop. It was working properly until yesterday. I went to do some work after I switched on my laptop and selected Windows, but when I came back my laptop's ...
0
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0answers
24 views

Hard drive no longer works in Windows works fine in Linux

I have a Western Digital WD1002FAEX 1TB hard drive which was installed in an external drive enclosure. The enclosure held two hard drives. The other is another WD 500GB. The 1TB drive was used as ...
1
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2answers
57 views

“no space left on device”, yet df shows plent of space and inodes

I've got two hard drives attached to this Ubuntu Server 14.04 system - one 1TB HDD, and one 2TB HDD. They are mounted in /mnt/1TB and /mnt/2TB. I would like to copy the contents of the 1TB drive to ...
0
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1answer
56 views

Can't send email using mail on cmd line but can using telnet smtp commands

On a ubuntu system I have installed postfix and set relayhost and mynetworks in /etc/postfix/main.cf config file. I can now telnet to port 25 on this server and send an email by issuing the SMTP ...
0
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1answer
84 views

Installing linux on a macbook pro - boot broken

So I tried to install ubuntu 14.04 on my macbook pro (completely replacing OSX). I had refit installed, but not it seems gone. And every time I boot, the PC can't find any OS. I tried using ...
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0answers
11 views

User based NFS access

I have an NFS server called nfs-server and several nfs clients (nfs-client1,nfs-client2,nfs-client3). I'm trying to share the home directory of myuser1 to be available on all nfs clients, but with ...
0
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0answers
13 views

How can I get a list of programs locking my folder in linux? [duplicate]

I want to unmount an sshfs folder but it says resource is in use. Is there anyway to find out which process is using it? I use Ubuntu 14.04
0
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0answers
22 views

Canon MP240 does not work in Ubuntu

I recently installed Ubuntu 12.04 in place of Windows XP on my parent's computer. I used the Printing dialog from System Settings to install the printer. I was able to successfully print a Test Page, ...
0
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1answer
37 views

What is a 1GBps port speed?

I have a question about a way I can measure download speed of my server in my case. Basically I have a dedicated server at Namecheap and I purchased the 1GBps port speed. (Not to advertize). But when ...
1
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1answer
25 views

Upload image to postimage.org using curl

I found a script that can upload image to postimage.org using curl. It was posted not long ago, on 2013-09-06, at http://crunchbang.org/forums/viewtopic.php?id=28867. The simplified script looks like ...
0
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1answer
22 views

How to fix ubuntu boot alongside windows 7

In the beginning I had only Ubuntu on my pc. After I installed Win 7 in another partition. Then Ubuntu boot doesn't starts anymore? I need dual boot: how can I fix it?
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0answers
9 views

Can I get back data of previosly install ubuntu machine from recently installed windows7 [duplicate]

> Someday back i formatted my Ubuntu machine and installed windows > machine i forgot to copy the data so can i get back the data which is > previously installed in Ubuntu from recently ...
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0answers
37 views

How do I suspend/unsuspend Ubuntu 14.04 on an X230 with an external display without corrupting the display configuration?

I have a Lenovo X230. I have an external display connected to it via the minidisplay port using a minidisplay to HDMI cable. I have configured the internal and external displays to be enabled and ...
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1answer
21 views

Uninstalling Windows 7 from multi boot system with ubuntu

My laptop has Ubuntu and Windows 7 installed. I want to remove Windows 7 completely to use only Ubuntu. How can I uninstall Windows 7?
0
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2answers
38 views

VNC Remote Reboot

I use a OS X (hackintosh) build at my house and a Toshiba Chromebook with an Ubuntu chroot on the go. Sometimes, I'm at an event and installing some software remotely through VNC and need to perform a ...
0
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1answer
14 views

Creating virtual host with Apache2

I'm trying to get Apache2 to host my Django project located in /var/www/tbg/. I get an Internal Server Error (500). I have already installed libapache2-mod-wsgi and My files are as follows: ...
0
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4answers
48 views

Replacing windows 8.1 with Ubuntu. Is it possible to recover original windows later after some years?

I have bought a new Dell inspiron 15. It came with windows 8.1 installed. But I want to replace it with Ubuntu (formatting OS partition & install Ubuntu), but afraid of loosing the original copy ...
0
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1answer
33 views

Local DNS queries fail on server but work on clients

I have Ubuntu 14.04 server and I have Bind9 installed on it and configured. On client computers I have the DNS server address set to this server. nslookup for my custom DNS entries return the correct ...
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0answers
26 views

Why is my laptop downclocking when it is not connected to power?

I have a Sony Vaio VPCF22L1/E. Regardless of the OS I use (I have both Ubuntu 12.04 and Windows 8 installed (dual boot)), the CPU downclocks itself when the laptop is not connected to power. At ...
0
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0answers
17 views

Linking mail groups from /etc/aliases to Mailman for archive purpose

I have configured mail server with postfix as MTA and Dovecot as MDA. Ubuntu version is 12.04. Also created mail groups in /etc/aliases. Mailing is working perfect. For archiving purposes I have now ...
0
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1answer
13 views

accessing .xls file and saving in folder for ubuntu

HOw do I access a .xls file and save it in a seperate folder in an ubuntu environment? I found that I could do this to access " find . -type f -name '*.xls' " but how do I save it in a folder? I am ...
0
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0answers
19 views

Can't boot from Windows installation disk on Linux

I've recently wanted to reinstall Windows 7 on my laptop which is currently running solely Ubuntu. I've downloaded and iso and tried burning it to both a cd and a usb but when I boot from either of ...
0
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0answers
20 views

Unable to turn on laptop after installing ubuntu (secure boot)

I've just bought a new laptop and have attempted to install Ubuntu 14.04 on it. The laptop is a dell inspiron 3521. After installing Ubuntu the power button does not even do anything. What is the ...
0
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0answers
21 views

mount XFS filesystem in ubuntu with permissions

I want to remove data from a Netgear Stora drive that I can no longer access via the Stora itself. The drive appears to be fine, but the Stora is fighting with my router, and it's old and somewhat ...
0
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0answers
16 views

import .cer file into ubuntu for curl

I am trying to use fiddler to act as a ssl proxy for debugging. I am trying to install fiddlers root certificate. I am mainly doing it so I can debug my python program. Using python I get a cert ...
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0answers
45 views

Attaching an USB device to Ubuntu VM in VirtualBox

I have a Terratec Cinergy T2 TV capture card. I am thinking of installing Ubuntu on my server and want to experience first with it in VirtualBox. I have trouble having VirtualBox to connect the device ...
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0answers
12 views

Archive file corrupted after using Testdisk in Ubuntu

I installed Ubuntu after Windows 8.1, while installing Ubuntu i lost all my 500 GB of data but with "TestDisk utility" I recovered all my data.Then i changed my OS to Windows 8, My all files are ...
0
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1answer
66 views

How to repair Windows partition after moving GRUB in different disk

I had a dual boot setup with Windows 8 and Ubuntu. The laptop has a normal HDD and a smaller SSD. Both OS were on the HDD. I decided to make a clean install of a newer version of Ubuntu on the SSD. ...
1
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2answers
106 views

Ubuntu 14.04 installation on Asrock H77M UEFI, dual boot with windows 8.1 already installed

As the title says, I need to install ubuntu in dual boot with windows 8.1 on my home PC. I knew that with UEFI partition table was written in GPT, but I found that the partition table on my hard ...
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0answers
10 views

How do I remove icon shaking animations in Ubuntu Dash?

In Ubuntu 12.04 LTS I want to disable the icon animations in Dash (I guess it's also called the launcher), e.g. skype shaking when I receive a new message. There's a CompizConfig settings manager but ...
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0answers
36 views

Linux seems to be unstable and overheats with dual boot

I'm having issues with successfully installing linux (both on my PC and my laptop). The issue seems to be overheating in both cases. It's not so much a crippling problem with the desktop, it handles ...
0
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0answers
36 views

Allow internet access to intranet only users using Nginx on Ubuntu

I need to allow some users who only have access to the intranet to access one specific internet site. I'm doing this by using Nginx as a reverse proxy. To test this, I would like to block all internet ...
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0answers
72 views

DisplayLink and NVIDIA, Getting DisplayLink Working

I have a triple monitor setup on an HP Pro 3000 SFF running Ubuntu 14.04 LTS 64-bit installation, and I've just upgraded my system to use a dedicated NVIDIA GeForce GT 610 graphics card. This card ...
0
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0answers
184 views

Ubuntu 14.04 uknown external display low resolution

I have fresh-installed Ubuntu 14.04 over the weekend on my Dell E6520. The nouveau driver didn't allow me to use maximum resolution for my laptop display. Switching to the nvidia (proprietary, tested) ...
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0answers
22 views

Windows 8 version of iStat Menus or System Load Indicator

I just switched back to Windows 8 from Ubuntu and Mac environment. Since using both UNIX platforms, I relied much information about the system status (CPU, Memory, Network, Activity, etc.) provided by ...
0
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1answer
24 views

burning a Blu-Ray with Silicon Empire

I've been trying to burn a Blu-Ray disk from an .ISO. The .ISO was created by Nautilus (CD/DVD Creator). Since Brasero and K3B seem not to be able to burn a Blu-Ray on my system, I've installed ...
0
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1answer
25 views

How to track some periodic system activity which hinders realtime performance

I'm running Jack2 with Pianoteq-5 on two core laptop running 64bit ubuntu-14.04. Such configurations are very sensitive to realtime performance because of low-latency requirements. At first I heard ...
0
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1answer
77 views

Dual boot intermittant issue using Ubuntu 14.04 and Windows 7

I have a problem with the grub2 loader sometimes. More often, when I choose Windows 7 in the grub2 loader, it hangs on the purple screen. I have looked up and down the internet for an answer and ...
2
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0answers
13 views

Audio flicking at back port [migrated]

In my Ubuntu 14.04 32-bit system, whenever I connect speaker at back audio port of my system the audio is flicker(in case when volume is 100% of both system volume and application volume that playing ...
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2answers
61 views

unable to read /dev/sda: Input/output error

I was reinstalling my Windows 8.1 from a mirror, then I've repaired grub2 and things got messed up. Now Windows boots about 20 minutes and then runs so slow, that nothing can be done. When it boots it ...
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0answers
40 views

Ubuntu stuck on splash screen

So my laptop has been running fine for months under Ubuntu Gnome. It's been mostly smooth sailing for me. But suddenly my laptop is just deciding to not boot. I'm stuck on the logo screen for Ubuntu ...
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0answers
105 views

Ubuntu 14.04 Digital Audio stops working

I have an Ubuntu 14.04 HTPC for quite some time. It's connected by toslink to a logitech z5500. Sound was working, but suddenly stopped... I've followed almost every guide and how-to to fix my sound, ...
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2answers
39 views

Ubuntu can't mount windows share

I want to access by termin a Windows share so on my Ubuntu 14.04 system I executed the following command: sudo mount.cifs -o username=dana //192.168.1.4/Users /mnt/ After entering the sudo ...