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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Why is my computer lagging and can't return from suspended mode?

I have a Sony Vaio that sometime is lagging and it won't return from suspended mode. If it goes into suspended mode then I must restart Unity with sudo service lightdm restart. It does not crash but ...
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1answer
8 views

Can Gnome act as thin client?

I'm wondering if Gnome can be used like VNC. Can the window manager be run on linux box A to work with linux box B? I'm editing some videos, and the system I'd like to use is headless. So if I could ...
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13 views

In what state is an external hard drive if it is seen by OS but content is unreachable?

I have an USB external hard drive. If I connect it to my computer which is run under Ubuntu, I can see a new folder corresponding to the hard drive (in both terminal and in the directories browser). ...
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1answer
17 views

What are files that end in ~ on OSX? (e.g. test.txt~)

I'm simply wondering what files that end with ~ are used for. Also, while I'm here, what types of files are generally "hidden", as well, which on OSX are .-prefixed. Are hidden files and ~-suffixed ...
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17 views

What are the commands that firefox and google chrome print html files to pdf?

In either Firefox or Google Chrome On Ubuntu 14.04, I can hit Ctrl+P and choose "Print to file" to print the current html webpage to a pdf. Are the browsers using some printing commands outside of ...
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6 views

Can't pass Fail2ban banned IP's to CloudFlare in Nginx?

I have Ubuntu 14.04, Nginx 1.6.2, MySQL 10.0.17-MariaDB, PHP 5.5.24 VPS. It running two WordPress sites. I use fail2ban with CSF. Fail2ban I use ban action as route, because iptables-multiport and ...
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4 views

damnsmalllinux Reading Package Lists. Error

I am currently trying to update my damnsmalllinux distribution using this command sudo apt-get update and I get this error message: sudo apt-get update E: Dynamic MMap ran out of room E: ...
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1answer
8 views

How to remap a command in KDE Konsole

I am a user without sudo-rights on a Ubuntu 12.04 machine I use with KDE. I would like to build a newer version of some program (in this case, vim) somewhere in my home folder. How can I make the ...
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10 views

What's the aprlog on Linux

Recovering from a compromised server. Pretty sure the aprlog (768773 -rw-r—– 1 root root root 18K 2015-05-03 12:22 aprlog) that is located in my home dir and presents itself as a bunch of encrypted ...
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2answers
30 views

I have been running Ubuntu off a flash drive on my Windows 7 laptop and now suddenly Windows won't boot

I installed Ubuntu 14.04 LTS on a USB flash drive and have been using it on my Windows 7 laptop. During the startup process I would press F12 and then select to boot off my USB drive. Ubuntu would ...
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1answer
18 views

How can I disable certain system keyboard shortcuts in Linux?

I'm currently working on a kiosk based on lubuntu (which is basically ubuntu with an LXDE desktop environment) that would be put in public places, such as internet cafés, providing internet access for ...
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23 views

Basic Proxy Server config fails for some websites. TCP_MISS and TCP_MISS_ABORTED ISSUES?

I have a basic installation of squid working on Ubuntu 14.04. All I want really is to log requests made. I don't really care for ACL or caching. Perhaps later. I looked at the long squid.conf file ...
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10 views

Ubuntu uuid-dev installation

I am trying to install the following package on ubuntu server Trusty and I got the following message : $ apt-get install uuid-dev Reading package lists... Done Building dependency tree Reading ...
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14 views

Ubuntu problems

I bought a hp pavilion p210tx laptop recently.I installed Ubuntu 14.04 LTS on my laptop.But its not working properly.I am facing many problems in my Ubuntu.First I got Wifi problem(to be ...
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13 views

Why does my Java test suite hang the entire system

When I'm running my test suite for a new java application it hangs, which by itself isn't that unusual considering it's under development. The problem is that that causes the entire system to almost ...
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60 views
+250

How can I repair my hard drive without losing files?

In short. I have problems with accessing files on my hard drive. I also assume that it is not a hardware problem (it is more on the "software level"). I would like to know if there are ways (Linux ...
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0answers
23 views

Completely uninstalling Windows 8.1 + Prepare automatic recovery

My computer earlier was on a dual boot with Windows 8.1 and Ubuntu 14.04. But then I uninstalled Windows 8.1 to replace it with some other Linux OS. I don't know whether what I did was proper ...
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0answers
9 views

How ubuntu achieves pinch & rotate with synaptics, if synaptics doesn't support it?

I've installed ubuntu while ago on my old netbook and pinching and rotation gestures were recognized out of the box. I was positively surprised. Then I changed distribution (and I'm very happy with ...
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17 views

Installing Ubuntu in a new computer

I recently purchased a ThinkServer TS140 (Intel i3-4130; 8GB RAM, 1TB HDD). It comes without any installed OS or drivers. How do I install the Ubuntu OS in this computer? I tried burning the Ubuntu ...
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1answer
30 views

Killing VNC Process Manually

I'm looking for a way to reset the display counter for VNC to :1. What has happened is that my server has been restarted without killing the VNC processes first and upon reboot and then starting ...
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0answers
3 views

PHP file printed to file

I have my PHP scripts in my public_html file and when I try to run them in browser, the file entire file is printed instead. Is there a way to fix this? I'm not sure if this is a problem with my lamp ...
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14 views

Setting up Wi-Fi using USB adapter on Ubuntu 12.04

I have tried in vain to set up my Ubuntu 12.04 laptop as a Wi-Fi hotspot; it says Your wireless card does not support Access Point mode I had to resort to a USB Wi-Fi adapter, and I purchased ...
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1answer
28 views

GRUB Bootloader not loading

I had 2 partitions Partition 1 - Ubuntu Partition 2 - Empty So I installed Windows 8 on 'Partition 2' and now I can't load the Ubuntu OS as it directly loads Windows. How do I get back the Grub ...
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1answer
17 views

Basic conversion of sequence of images to avi with avconv

I'm trying to convert sequnce of images to small avi. Each image should be shown 2 seconds. I'm using this basic command sudo avconv -r 0.5 -i test%05d.jpg out.avi I get the output, but it shows ...
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11 views

Can't see or browse SMB file shares depending on two routers

I have two routers (huawei which is the main and linksys connected to it for extra coverage), I can't access my SMB share which is connected to the huawei through the linksys network. note I can ...
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40 views

How can I improve the performance of my computer?

I have had my computer for a long time now and even though I try to keep things clean, it seems relatively slow. Particularly, the windowing system seems to lag frequently. Windows fade in slowly ...
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1answer
27 views

Need a proxy server for only logging requests [on hold]

I have looked at Squid and find it too heavy for the simple task that I have at hand. I just need a proxy to run on Ubuntu, preferably a transparent one, which will only log http requests and nothing ...
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1answer
47 views

Unable to start windows 10 technical preview

Few time ago, I have installed windows 10 technical preview and it worked perfectly for the first two weeks. After that, it began restarting every few hours saying that windows 10 has expired. I have ...
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1answer
8 views

Force remove package with dpkg despite errors

I think this is Ubuntu Vivid specific as none of the existing solutions helps: Can I get dpkg to ignore an error returned from a post-installation script? Unable to remove package on Debian 7 All ...
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0answers
26 views

Ubuntu Vivid, Missing vmlinuz from /boot

This might be an Ubuntu Vivid specific question as I haven't meet it before. In my new Ubuntu Vivid, the VmLinuz Boot Image /boot/vmlinuz* is not found and I can't generate it. Answer from ...
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9 views

Ubuntu 14.10 Shutting Down on Lockscreen When Idle

I have a clean install of Ubuntu 14.10 on an HP z440 workstation. I have the problem that when I lock the computer and leave for at least an hour the machine shuts off. I have to restart the ...
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8 views

VPN-Client on virtual interface

We have the following two interfaces (2nd is a virtual one) on a ubuntu machine: eth0 Link encap:Ethernet HWaddr abc inet addr:x.x.x.110 Bcast:x.x.x.127 Mask:255.255.255.224 eth0:1 ...
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20 views

Ubuntu Upgrade Fail, Can not install/remove/purge USB Device are not detected too

I recently Upgraded my Ubuntu 12.02 to 14.10 and now I can not remove or install or even any USB Devices are also not detected. I get following error on install/remove I tried adding new user and see, ...
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2answers
32 views

How to resize boot partition on ubuntu 14.10 using gparted

I have Ubuntu 14.10 installed on my pc of 500GB HDD. I created a seperate boot partition and now its running low on space while upgrading to 15.04. I even tried cleaning out spaces, still its not ...
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1answer
46 views

Time Machine on Ubuntu Server via SSH tunnel - backup fails

I have an afpd up on my Ubuntu server. Everythings works fine in LAN. If I want to make a backup for a user via ssh tunnelling it fails, although it works in lan. The tunnelling works fine. When the ...
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1answer
23 views

can't login laptop ubuntu 14.04 LTS

It happened a few times to me already. It is an Azerty keyboard, set on [french (legacy, alternative)]. I have letters + figures to type. If I use capslock for my numbers, it doesn't work, password ...
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1answer
27 views

MonoDevelop not running after installation of a newer version of mono

After installing a newer version of mono (4.0.1) on Ubuntu 14.04.2 LTS i am getting an exception on running MonoDevelop Unhandled Exception: System.TypeLoadException: A type load exception has ...
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0answers
34 views

Can't upgrade ubuntu from 14.10 to 15.04

I'm using only Ubuntu 14.10 on my PC having more than 400GB of free space out of 500GB of HDD. I received a notification to upgrade to my Ubuntu to 15.04. When I tried to upgrade, after some time it ...
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1answer
51 views

Installing Linux on a Windows Dell XPS 13

I can buy from a retailer with employee discount. This means that I can get a Dell XPS 13 with Windows for considerably less money than the Dell XPS 13 developer edition from Dell directly. I would ...
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0answers
13 views

Installing Ubuntu - Boot Manager Troubles

Specs - Acer Aspire - Intel Based System - UEFI Firmware I'm trying to install Linux Ubuntu alongside Windows 8.1. I had the issue of my Boot Manager not finding other bootable devices (my external ...
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1answer
12 views

Linux Installation - Boot Manager Not Finding CD/USB

I have an Acer Aspire laptop with an intel I5 processor. I'm trying to install ubuntu alongside Windows 8.1. My problem is my boot manager is NOT finding my external hard drive nor the dvd I made with ...
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1answer
33 views

Looking for shortcut key for Linux terminal

I opened a program via linux terminal, and after some search in Google I find out that I can close the program by Ctrl+C. If I want to run the program, but at the same time have a new line in the ...
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1answer
29 views

The logic of Disabling Root Login

Ubuntu 14.04 VPS user here. My VPS was hacked twice. And the third version is up. Fingers crossed. The mistake I made in the first two was that I had root + password login enabled. I've learned ...
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1answer
31 views

Ubuntu Plesk SSH issues (permitRootLogin)

I got a new Ubuntu 14.04 server with unlimited Plesk delivered and working. If I try to migrate the old server through Plesk's Migration Manager it reports the following issues: rsync execution ...
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1answer
114 views

vsftpd: 500 OOPS: prctl PR_SET_SECCOMP failed

I have an issue with vsftpd. When I connect to my FTP server via FileZilla I get the error: 500 OOPS: prctl PR_SET_SECCOMP failed Error: Critical error Error: Could not connect to server ...
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1answer
22 views

Issues with Ubuntu Linux installation on a Windows 8.1 laptop

I’m trying to install Ubuntu Linux on my Windows 8.1 laptop. I’m being told I need to “Disable Secure Boot” within my UEFI firmware settings. But the only way my laptop will allow me to do so is to ...
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21 views

OwnCloud - storing data on RAID array

I have a server running Ubuntu Server 14.10 LTS 64bit. It has an O/S drive, and then a data RAID-1 array mounted under /srv/storage I've installed OwnCloud server using the default sqlite DB. I've ...
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0answers
14 views

OSX: Locking in vagrant with Ubuntu guest using NFS doesn't work

On OSX 10.10.3 using VirtualBox 4.3.26 and vagrant 1.7.2 when using NFS for the shared folder in a Ubuntu 14.04 LTS guest, PHP application ins the guest trying to use LOCK_EX on the shared folder ...
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0answers
16 views

How can I work out why my headless VirtualBox VM is not booting?

I have an Ubuntu Server, upon which I am trying to run a headless VM (Ubuntu Server as the guest OS) with Virtualbox. The machine apparently starts up but I cannot ssh into it (though it should be ...
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1answer
31 views

Unable to run Matlab on Ubuntu after fresh installation

specs: OS - Ubuntu 15.04 (64-bit) and Matlab - ver. R2013a (64-bit) I have successfully installed and activated Matlab. After trying to run it via terminal, it is showing error on the terminal. ...