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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How do I install Python in Linux with no Internet access?

Part 1 I have CentOS with no Internet access. I have a docker container based on Ubuntu. I want to install Python inside the Docker container. I downloaded some .deb files for installing Python ...
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rosmake lsd_slam failed during building [migrated]

I am trying to build lsd-slam. Using Ubuntu 14.04 and ROS indigo. In the last step I get this: [rosmake-1] Starting >>> lsd_slam_core [ make ] ...
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1answer
37 views

Cronjob Create File Every Execute

I can create a cron job for every 5 minutes with following codes: */5 * * * * root bash /etc/cron.d/mongo/5min.sh In the /etc/cron.d/mongo/5min.sh file send request with cURL: #!/bin/sh ...
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70 views

How to start a phone call from the terminal in Ubuntu Phone?

The ability to start a phone call from the terminal is mentioned in this transcript of a Q&A-session with the Canonical community team. So - did somebody figure out, how to do it? The terminal ...
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2answers
37 views

Nmap traceroute max TTL

(Ubuntu 14.04.4 LTS) traceroute has -m, --max-hop=NUM, as does tracepath. How can I limit the max number of hops when using: nmap -Pn -sn --traceroute ?
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1answer
24 views

CapsLock breaks Eterm keybinds

In my Ubuntu Server 14 with FluxBox i use to bind actions on Eterm. This is my user.cfg file: [...] begin actions bind ctrl shift button3 to string '^[]6;14^G' bind ctrl button3 to menu ...
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1answer
64 views

How can I view my virtualbox guest unix filesystem from the host windows file/text editor? [closed]

I'm running Ubuntu/CentOS in a virtualbox guest and am trying to configure various services to run on it (nginx, php, memcache and more). As a novice Unix user, I'm finding it slow to use the console ...
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28 views

Intermediate programmer seeks comprehensible info on which blobs are included in the Linux kernel, 4.2

I am specifically asking about the kernel included in Ubuntu 15.10 and my technical skills are meek-I can code in C, make system calls, use XCB. I barely know make, don't comprehend GIT. I cannot ...
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1answer
90 views

Can you run GNU/Linux userspace code other than Ubuntu on Windows?

Microsoft has announced Ubuntu on Windows — The Ubuntu Userspace for Windows Developers. It's supposed to allow native Linux binaries to run unmodified on Windows 10, like wine in reverse. Why ...
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2answers
47 views

Ubuntu: I cannot reach internet

I'm trying to install nodejs on my Ubuntu server but it seems not to be able to reach the internet. My server has two network interfaces: eth0 connected to my network eth1 used sometimes to be ...
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1answer
43 views

Why is 64bit Ubuntu running Slower? [closed]

I have 2 mostly identical machines, and Acer and a Lenovo, both with Intel Atom 230 CPU @ 1.60GHz and 1GB of DDR2 RAM. The acer has a fresh install of 64Bit Ubuntu 14.04 LTS while the Lenovo has the ...
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Strange Ubuntu logout when manipulating DOM in Google Chrome

The context: in Google Chrome, in the the Developer Tools inspector, each time I try to move a DOM element, Ubuntu Gnome log me out without notice. I can't even take a snapshot of this, because I'm ...
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24 views

Rsyslog to use hostname instead of leftmost FQDN label

I have an Ubuntu 15.10 configuration in which /etc/hostname reads projectname-environmentname and /etc/hosts reads 127.0.0.1 localhost 127.0.1.1 environmentname.projectname.tld ...
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33 views

Opencl only detects 1 gpu instead of 2

I have an ubuntu 14.04 setup with r9 390 and the r9 nano. aticonfig --list-adapters detects both the r9 390 and r9 nano. The nano is connected to the motherboard via a 1x to 16x pci-e USB riser. When ...
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2answers
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Vulnerability demonstration on Ubuntu 9.04

For a class on IT security, I want to demonstrate privilege escalation to the students. To do so, I looked through the exploit/linux/local list in the Metasploit Framework, finding (among others) ...
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2answers
33 views

Apache and symbolic link in /var/www/html

I'm trying to create a symbolic link to /home/user/www from /var/www/html so i can access the directory in my home folder from the URL: http://localhost/www/ I did: ln -s /home/user/www /var/www/html ...
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27 views

'Resuming' Ubuntu after battery died

I'm running Ubuntu 15.10 alongside OSX, usually booting into Ubuntu using rEFInd. Last night my laptop died while in Ubuntu due to lack of battery power, when trying to boot back into Ubuntu this ...
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2answers
37 views

How to access local repository mirror?

I am trying to access a local apt mirror which is on a usb drive. The file tree on the drive is /apt-mirror /mirror /archive.ubuntu.com /dists /pool /skel ...
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27 views

How do I run commands that target a linux distro inside a mounted image?

I'm trying to use Ubuntu Customization Kit, however it's failing because of a bug. It gets to the point where it mounts the necessary image, but then does not open the console for me to be able to ...
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25 views

how to run android dex from command line in ubuntu 14.04

I write a program which has ant build file with this command: <exec executable="dx" dir="${workdir}"> <arg value="-JXmx${env.JavaHeap}"/> <arg value="--dex"/> <arg ...
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67 views

Correct dpi setting with nvidia driver

I just installed the nvidia-352 driver on (a freshly installed) ubuntu 15.10 for a quadro K2000M graphics card. Then I enabled it via sudo prime-select nvidia. After reloading the xserver I get very ...
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29 views

How to add time stamp(month_year) to the file after matching specific string?

I want to add time stamp inside the file only after matching specific string, time stamp format: 03_2016 file contains "$channel_name Policy" string, I want to replace this string with ...
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41 views

Can not boot windows after installing ubuntu

I installed Ubuntu in a computer with Windows preinstalled but when doing it I didn't disable fast startup and now can't boot Windows. I am using GRUB to boot. In the GRUB menu I can see Windows, but ...
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1answer
62 views

Retrieve data from “erased” home partition while installing win7

I had a computer with a windows 7 and I installed lubuntu 14.04 on another partition (I think I shrinked the windows NTFS partition first). I installed lubuntu this way: -> NTFS boot -> NTFS ...
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15 views

Installer hangs randomly

I'm attempting to install Linux and absolutely nothing is working, I have tried: Booting from USB, in both UEFI and non-UEFI mode Booting from a DVD installer, Booting from a UNetBootin image ...
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23 views

Upgrade package Ubuntu 15.10

I would like to upgrade systemd to it's most recent version 229( currently I have 225) but when I try to do it via command line I get systemd is already the newest version. I suspect 225 is the ...
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Ubuntu 10.04 / Suse10 (yes outdated..): Edit /etc/fstab before it is read

As the topic says: I'm trying to edit the /etc/fstab before it is read during the system-startup OS: Ubuntu 10.04 and Suse 10 I've linked my edit-script currently under /etc/rc2.d/, but it is called ...
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53 views

Steam install via Crouton on Chromebook kills Chroot?

I can't find any answers on this elsewhere, so here goes. PS - this is, quite obviously, my first time with Linux. I have now twice installed XFCE onto my Toshiba Chromebook 2 using Crouton. After I ...
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1answer
54 views

host : ubuntu 14.04, guest : ubuntu 14.04 => login & pwd repeteadly asked

I have ubuntu 14.04 LTS installed, I have on it virtualbox 5.0.16, and I tried to create an image of ubuntu 14.04.3 (x64 bits). so I created a new virtualdisk on virtualbox, with 8GO of HDD, but when ...
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52 views

Can't install Virtualbox Xubuntu “Running VMs found”

I'm trying to install Virtualbox5.0 on my xubuntu. On my first installation, virtualBox wasn't working fine so I try to re install it. Now VirtualBox is uninstalling and I can't reinstall it, when i ...
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31 views

Add Multiple VPN External IPs - OpenVPN AS

I'm currently running OpenVPN Access Server on Ubuntu 14.04. I have a VPS with 5 IPs, eth0:1, eth0:2, and etc. I want to know how to add each of these ips to be used via OpenVPN, so that when a client ...
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1answer
94 views

Strange warnings when cursor moves from one monitor to the other

I am not sure whether this is a real problem. However, every time I move my cursor from one screen to the other on a dual monitor system (i.e., laptop + external monitor) the following warning is ...
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87 views

Short blank screen a few seconds after login

I am using Ubuntu 15.10 with unity on a Lenovo Thinkpad T460s laptop. A few seconds after I login my laptop screen as well as the external monitor go blank (i.e., black) for a very short time. I ...
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Linux ubuntu 14.04 ways to control keyboard and system leds from console

At my PC there are 5 leds (3 on keyboard, at wifi(f12), sound mute(f6) and at caps-lock buttons, and 2 on the side, indicating power and hard drive access) I read this guide ...
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OpenVPN client setup

I have been following this tutorial – Howto Configure OpenVPN Server-Client on Ubuntu 15.04 – to set up OpenVPN on my Ubuntu 15.04 VM.  I have followed it through and through, and am kind of stuck ...
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Ubuntu 14: web cam is not detected

Today I bought an usb web cam. However, when I connected it to the PC and did lsusb there is not web cam in the output of the command (only keyboard and mouse). However, when I connect the cam starts ...
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1answer
29 views

How do I debug email delivery delays?

In order to get notified about some stuff going on on a server, I use simple mailutils command executed @hourly by cron: cat $file | mail -s "Subject" $receivers where $receivers is a list of a few ...
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2answers
29 views

Assign a different ip for each .ovpn client? OpenVPN

Alright, so I'm using OpenVPN on ubuntu 14.04. Say I have a box, with 5 IPs, I have openvpn, but I want to make 5 different client certificates and .ovpn files, but each of those certificates will ...
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1answer
18 views

Media change while installing apache2

I've got a fresh copy of Ubuntu Server 15.04 and installed it via "Easy Install" in VMWare WorkStation 12. After it installed,i've logged in to my account and tried to install apache2 with this ...
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2answers
58 views

How can I start program on boot in Ubuntu 14.04?

Is the root crontab the only way? I'm starting up a MC server and don't want it to need me to manually restart it each time the server reboots for whatever reason. I don't want any login required ...
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2answers
138 views

Windows 10 missing from grub after Ubuntu update

So I updated Ubuntu to 14.04 a few days ago and I just noticed Windows 10 went missing from the grub menu options. I tried multiple variations of update-grub and tried using boot-repair, too, but ...
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1answer
68 views

What am I doing wrong when trying to open port 8080 on iptables using Ubuntu?

I'm trying to open port 8080 so I can use a web panel application (McMyAdmin) I have installed on my Ubuntu server. I'm rather new to Linux / SSH in general but I'm getting there thanks to various ...
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0answers
23 views

Unable to establish PPP on USB dongle?

I have USB Dongle and i am willing to setup ppp through the dongle. I have done following steps to setup ppp. 1.When i plugged the dongle into Ubuntu 14.04. It has been detected as the Mass ...
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21 views

Listing available functions [duplicate]

I have a function defined on my .bashrc that allows me to mkdir and cd into a folder, which I call mkcd. I could write the same thing using an alias, or as a script. For aliases and scripts, I can ...
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1answer
33 views

Unable to detach a USB device on Ubuntu 14.04

I was using udisks to unmount and detach usb device with following commands which works just fine on Ubuntu 10.04 udisks --unmount /dev/sdb1 udisks --detach /dev/sdb Because udisks is not available ...
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16 views

How to move a postgresql backup dump to an other server with a script?

I have on a ubuntu 14.04 Server some Backup Files from a PostgreSQL Database. How Can I move this with a daily backup script to an other server? I need a script that moves my files in path ...
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1answer
45 views

Which version of Ubuntu is my Linux Mint installation based on?

For any given version or installation of Linux Mint, how would I find out which version of Ubuntu it is based on? I'm sure it must be in documentation somewhere right?
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54 views

Unable to run executable on secondary machine

My primary computer can run a program (hc12-coff-gcc) located in the usr/local/bin directory. My secondary computer cannot run the same program. the usr/local/bin directory is in the PATH for both ...
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1answer
100 views

How do I start Unicorn using systemd/systemctl?

I've wrote a systemd file for systemctl to start unicorn: [Unit] Description=Unicorn server [Service] SyslogIdentifier=my-app-unicorn User=deployer PIDFile=/tmp/unicorn.my-app.pid ...
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2answers
106 views

virtualbox-5.0 won't install on ubuntu-server 14.04.4

I can't get virtualbox to install. I recently reinstalled my entire system with ubuntu-server 14.04.4. I added the virtualbox repository as recommended on their website: I added deb ...