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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Connect virtual machines

I have a Linux machine with an IP address for example 172.16.x.x, with some hosted Virtual machines, each machine is accessed with different SSH (2230,2234...). For instance in VM1 I have an Apache ...
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First PC. Can't install Windows 8.1 error, currently using Ubuntu

I just built my first PC and I'm having trouble installing the OS. I wanted to install windows 8.1 but I ended up installing Ubuntu because I could not manage to install Windows 8.1 due to an error: ...
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5 views

Mount USB-Device (Printer) per Script on Ubuntu 14.04 Virtual Box 4.33

We have ubuntu 14.04 with Windows7 on the Virtual Box 4.33 running. As the USB-Printer is mounted at the host or the guest and there seems to be no solution to make it on both available, now my ...
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1answer
15 views

how to open port in ubuntu?

I have open port 3003 that working correctly on all remote connection . when i type command: netstat -tupan | grep 3003 then it gives output ekodev@ezp:~$ netstat -tupan | grep 3003 (Not all ...
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1answer
15 views

Unlimited savelines in XTerm?

I'm trying to achieve unlimited or simply very large number of lines saved beyond the top of the screen in XTerm. I do have my xterm*savelines: 10000000 resource set to a rather large number, and I ...
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47 views

Windows 10 isn't shown in dual boot menu with Ubuntu

I have installed Ubuntu alongside Windows 10 to different local disks. But on the booting window, Windows 10 isn't showing after installing Ubuntu- there is only Ubuntu on the menu. How do I enter ...
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6 views

Ubuntu server does not connect to the internet anymore

I switched off my Ubuntu Server, but, when I started it, it didn't connect to the Internet. It is connected to the router via Ethernet. What can I do? Thanks
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5 views

Ubuntu Server is not visible anymore in the local net

I set up Samba on my Ubuntu Server, I could see the server from the two Windows PCs in my home and I could share files between the PCs. When I restarted the system, I could not see the server anymore. ...
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1answer
21 views

Programs not Executing

So one day randomly a month ago all of my programs that I installed stopped opening when I clicked them. I figured out how to manually run Minecraft since it is a jar file, but other programs not so ...
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1answer
55 views

Will upgrading to Windows 10 replace my grub bootloader?

I dual-boot Windows 8.1 and Ubuntu 15.04. I have learned to install Windows before Ubuntu because the reverse results in having to finagle with a lot of settings to get the grub boot loader prompt ...
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1answer
12 views

Ubuntu + Win 7 Dual Boot

I want to dual boot Ubuntu on my old windows 7 laptop. Will I ALWAYS need the flash drive I am burning the ISO onto for startup? Or, once I select "Install Ubuntu alongside Windows", will Ubuntu be ...
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8 views

Repeating mDNS/Bonjour requests from eth0 through a tunnel (tun0)

To start off, I am quite new at both networking and Unix/Ubuntu/Linux distros. Just a warning, for any setup/code may look a bit ugly. Basically, my end goal is to successfully AirPlay Mirror to a ...
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3answers
25 views

Ubuntu - OK to raid0 and raid1 on same two drives?

I'm building a household Ubuntu 14.04 server and just installed two 3TB drives for the files and media. The box (HP DC7900 SFF) uses Intel Matrix RAID which, according to wikipedia is neither hardware ...
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1answer
16 views

input/output errors using encfs and dropbox

I have a 200 gig Encfs encrypted file system living in my Dropbox and being accessed by multiple machines, and I've never had any problems with it until now. I moved about 10 gigs of data around on ...
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4 views

Launch 10 Firefox profile windows simultaneously?

I would like to open 10 Firefox profile windows simultaneously on Ubuntu desktop. I know how to do this on Windows but the application doesn't exist on Ubuntu. I have tried Profile Manager in Terminal ...
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3answers
26 views

What is the equivalent of Ubuntu /etc/network/if-pre-up.d/ in Fedora (22)

I'm trying to migrate from Ubuntu to Fedora(22) but I can't find how to run a network script before the interface is up. Is there any equivalent of this /etc/network/if-pre-up.d/ in Fedora? I need to ...
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2answers
74 views

Dual Booting Windows 10 and Ubuntu

How do I do this, should I follow the same method as for Windows 7? I did not try anything but am looking for suggestions. No I don't want to use VB. Please help. My hard drive has around 50GB free ...
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1answer
36 views

Linux sh script throws “#!/bin/sh: not found”

i have a script #!/bin/sh # Automatically remove a torrent and delete its data after a specified period of # time (in seconds). TARGET=/var/www/transmission/completed USER=name PASS=pass ...
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3answers
15 views

Wireless working but ethernet not working in Ubuntu 14.04 in hp laptop

ubuntu@ubuntu-HP-15-Notebook-PC:~$ ifconfig eth0 Link encap:Ethernet HWaddr d0:bf:9c:1a:8b:3e inet6 addr: fe80::d2bf:9cff:fe1a:8b3e/64 Scope:Link UP BROADCAST RUNNING ...
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1answer
10 views

Restart a command after it gets killed by the system

I have been using Gmvault to backup my Gmail email accounts but since the machine I use for doing this job only has 1GB memory, it frequently got killed by the system (Ubuntu) when it exhausted all ...
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52 views

Windows 10 upgrade using another partition — cannot boot up anymore

I have a dual-boot set up with Ubuntu 14.04, Win 8, and a Storage partition. Since my Win 8 partition is full, I have to choose the Storage partition during the Win 10 upgrade menu. During the ...
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1answer
20 views

Bridged Network not working on Ubuntu Guest, Windows 8 Host using VMWare

I'm using VMWare Workstation 11 (Ubuntu 15.04 Guest, Windows 8.1 Host) and bridged networking is operating fine on my home network; however, when I try using the same configuration on my work network ...
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1answer
23 views

3 interface server - wap with bridge - how to route this?

I have the following setup (except the "server-addressed packets"-part): http://www.directupload.net/file/d/4062/jo9qswvv_png.htm Basically eth0, eth1 and a wap. eth1 and wap are bridged with br0. ...
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1answer
28 views

How the internal pipes in linux work?

When I do ps , ps will show that in the list. But when I do ps | grep hello even though ps is the process , grep is the process shown. Is it that pipes work that way ? How is the pipe read fd closed ...
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12 views

Linux - How to stop a queued command

I have two terminals open: #1 dd command copying 128GB #2 Using Kill command to monitor dd process . I was repeating the monitoring command and accidentally repeated dd command in the second ...
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14 views

Shell script to get 2 diff files from 2 diff folders

Fetch all files from 2 different folders, If first file is from folder 1 and another file should be again first file from folder 2 at the same time, Similarly If Second file is from folder 1 and ...
1
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1answer
14 views

VM engine that reuses installed OS

I am running a tripple-booting MacBook Pro. It boots between Ubuntu, Mac and Win7 (likely going to drop Win10 on it asap). Now I would like to do tasks in my Mac, my primary OS, while pulling updates ...
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16 views

Run Cuckoo inside Docker

I'm trying to install Cuckoo inside of a Docker container but have run into a problem. I know there's an image on the Docker website: https://registry.hub.docker.com/u/blacktop/cuckoo/; however, I've ...
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542 views

Why am I getting error C1900101 when I try to upgrade from Windows 7 to Windows 10?

I am dual booting Ubuntu and Windows 7 and I am attempting to upgrade to Windows 10. This is the error message I get when I view the log: Installation status: Failed Error details: Code C1900101 ...
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76 views

Creation of Windows 10 install USB, no boot

I just downloaded the 64-bit Windows 10 ISO, and trying to create a pendrive installer (since my computer doesn't have an optical drive). The system I have available is Ubuntu 14.04, which is the same ...
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26 views

Cannot access server via SSH in terminal

When I try logging in via ssh root@server.org I am asked for my password, however when I enter it, it doesn't work. I can access the server by a different user then run su root and the password works ...
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2answers
41 views

date. hwclock keep showing wrongly everytime after reboot

Edited question to better reflect situation. (My hwclock and date is not showing correctly) I am on +GMT 8 and i have set my hwclock to localtimezone by doing the following rm /etc/adjtime ...
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0answers
122 views

Installed Ubuntu next to Windows 10 caused nothing to boot anymore

The following broke my PC. Installed Windows 10 Education x64 final release Booted Ubuntu 15.04 install disc Installed Ubuntu with option to install next to Windows Installation said it has been ...
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1answer
15 views

KVM: iphone passthrough to windows guest

I use KVM on a ubuntu 15.04 guest and a windows 7 and windows 10 guests. I connect my iPhone to my PC and want to redirect it (using virt-manager) to the guest. I always get the error. ...
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14 views

Certain ubuntu 14.04 images accept ssh on parallella board

The Parallella is a microcomputer that's basically a number accelerator. Although it seems like it may be a network error, but I know for a fact its a hardware issue. I had a working headless image ...
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0answers
11 views

How can I change the startup options on a (L)Ubuntu bootable USB drive?

I'm trying to install either Lubuntu or Ubuntu on an old Dell Netbook which has a 32-bit processor and 1 GB of RAM. I copied the Lubuntu ISO to my USB flash drive using a 3rd party program called ...
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0answers
13 views

trying to connect SFTP upload with to keep my files syncronized

I have an linux ubuntu 14.04 ec2 instance with default login parameters (user: ubuntu, password: ) I can access to ftp through SSH using my credentials without any problem, but when I want to connect ...
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1answer
37 views

running python program on startup in tty4

I want to setup program that will automaticly run in tty4 (if its possible, if not then can be run in any other tty) on system start. My python script is at /home/vakus/main.py I have no GUI, only ...
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1answer
194 views

Ubuntu only resolves DNS when the router's IP address is present in the DNS servers list

When I use DNS servers other than my router's IP address, Ubuntu or any other application (web browser) fails to resolve host names. I have added Google's DNS servers (8.8.8.8 and 8.8.4.4) using ...
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1answer
11 views

Voiding data on a DVD-R/DVD+R on Ubuntu 12.04LTS

I asked on askubuntu and was pointed over here. Long-story short, I had to completely format both my hard drives. So, I need to reinstall my dual-boot of Windows 7 and Ubuntu. One problem. I lost my ...
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0answers
8 views

syntex error on line 76 of /ect/apahce2/apache2.conf

I'm a newbie and using the cs50 appliance (based on Ubuntu) which is made for cs50 course on harvard university. We use the appliance as a virtual machine and they have set everything ready and any ...
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1answer
13 views

Cloning Ubuntu “clusters” with ssh access

I have a "cluster" with multiple Ubuntu (12.04) machines, all with the same accounts. From any machine, I need to ssh to any other machine. I set up ssh, generated keys, known_hosts file, and tested ...
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0answers
10 views

How to restore OS when I've deleted Kernels from full disk encrypted Ubuntu 14.04 (also with home directory encryption)

I have an Ubuntu 14.04 OS on which I enabled full-disk encryption and home directory encryption. In the process of updating Ubuntu my boot folder was too full to update so I ran a command I thought ...
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1answer
24 views

Ubuntu 14.04 hangs on purple screen

I have Windows 8 and Ubuntu 14.04 dual boot on my laptop. (Ubuntu is a recent installation.) Windows works fine, but Ubuntu hangs at the purple screen when I try to boot it. The laptop has a NVidia ...
0
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1answer
7 views

How do I move a CMS installation from root to subdirectory (nginx)

I've inadvertently installed Wordpress into the root of my Ubuntu nginx server. How do I move this installation from root to a subdirectory called /blog? ex. mysite.com/blog What I have now: server ...
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23 views

Ubuntu like windows place shortcuts for MS Windows

I work with both Ubuntu and MS Windows. I love the Ubuntu shortcuts like Ctrl + Alt + rightarrow which moves windows to the left half of the desktop and Ctrl + Alt + NumPad 9 which moves the window ...
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1answer
19 views

Postfix issue on Ubuntu

I have a little issue with my Postfix, I can't receive any email... Every time I try to send an email from an external source, I receive : Jul 28 11:05:38 DESTHOSTNAME postfix/smtpd[24871]: NOQUEUE: ...
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1answer
25 views

How do I get access to the file system of a stopped AWS instance (virtual machine)?

Issue: I have an AWS t2.micro (virtual machine) instance (name:webserver) set up with Ubuntu 14.04 LTS. The instance is unusable due to a configuration file that I edited improperly and saved. I ...
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1answer
48 views

ubuntu installation on usb flash drive will not boot

here's the partitioning I've done during ubuntu install https://youtu.be/BcRnqqybMIQ installing OS: Ubuntu 14.04 64bit AMD64 device: Asus x205ta ubuntu bootable usb drive created and BOOTIA32.EXE ...
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3answers
33 views

Preserving /tmp on reboot

Ubuntu cleans /tmp on reboot. Suppose my system goes down unexpectedly, leaving some somewhat valuable files in /tmp. What can I do when I then restart the system to prevent the /tmp files from being ...