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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Connect OpenVPN server on Ubuntu Guest VM

Setting up OpenVPN server on Ubuntu Server VM and trying to connect to it from HOST Windows 8 but had no luck. There is no connection. Whats wrong? Everything was did with this tut: ...
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7 views

Unable to type input to serial command interface

I am trying to communicate with a device with a serial command interface. dmesg shows that: [ 2465.467579] usb 3-1: FTDI USB Serial Device converter now attached to ttyUSB0 ls -pla /dev/ttyUSB* ...
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odroid/ubuntu - getting wlan to start

Im working with an 'odroid' fanless PC. The latest OS attempt on it is the stock Ubuntu 14.04 that comes with it. Have made some progress getting the networking (eth0) started but am having issues ...
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54 views

Command to get System Serial Number in Linux Machines [on hold]

How Can I get System Serial Numbers in Linux Machines ? i prefer to get this through a non root account and dont want to use external commands such as dmidecode or lhal
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1answer
33 views

losetup /dev/loop0 disappears after some time

at the moment I do some tests with loop devices on Linux/Ubuntu. In a small test script I have the following commands: #!/bin/sh rm testfile.x dd if=/dev/zero of=testfile.x bs=1M count=1200 losetup ...
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2answers
34 views

How will apt-get handle my manual installed software?

Suppose the Emacs version in the APT repository is 24.3, I configure && make install my own emacs 24.4. After a long time, the software in the APT repository was updated to 24.5. What would ...
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1answer
26 views

Running ubuntu binary on CentOS with all shared libs installed results in ld SIGSEGV

I'm trying to get a binary compiled on Ubuntu to run on CentOS 7 (both 64bit, one host, the other vm). So far I've copied the binary with all the shared libs. I no longer get the missing library ...
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1answer
51 views

How do I know if I'm in a jail, container, snapshot, etc. environment? [duplicate]

I received a machine (Ubuntu 12.04 server) from a coworker when he left the company. I created my own user as sudo/admin and used the machine for months. After rebooting for the first time since I was ...
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25 views

where could i find a quick explanation to network bridging? [on hold]

I would like to use haproxy as a load balancer for 2 backend servers. To keep the source ip addresses i have to use it with tproxy which means i have to make the haproxy load balancer into a ...
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1answer
27 views

Ubuntu remote desktop user using a key-based login

I have an Ubuntu 14.04 LTS set up and I have a which authenticates using a private key to connect via PuTTY. Is it possible to use remote desktop from windows 7 (xrdp) with key-based login?
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Why libpam-systemd run interactively on apt upgrade, even when specified force-confdef/force-confold

I upgrade my packages using aptitude, specifying the apt options --force-confdef and --force-confold. This generally works, but the package libpam-systemd (204-5ubuntu20.8, on Ubuntu 14.04) still ...
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1answer
35 views

Ubuntu runuser command?

I am creating a bash script that requires to run commands as a specific user. As a result I am using the command: runuser I have tested this script and it works perfectly in Ubuntu Server 14.10. ...
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1answer
28 views

Creating users with groups in Ubuntu Server? [on hold]

Typically when I create a new user in CentOS / Redhat with the command: useradd user The permissions that it is assigned to the user typically works fine. I believe everything is restricted to its ...
3
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1answer
62 views

Ubuntu user disappeared from machine

Unsolved mystery - I was given a coworker's Ubuntu 12.04.1 LTS machine and set up my own (sudo/admin) user on there from the command line. I switched to my user (from his sudo/admin user) and ...
2
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1answer
25 views

number of open files configuration not operational

Addressing an error of Too many open files I was attempting to follow the suggestions here Although /etc/sysctl.conf fs.file-max = 70000 vm.swappiness = 10 and /etc/security/limits.conf nginx ...
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1answer
27 views

Accidentally deleted /bin/su

I was working in /bin on my Ubuntu system and ended up deleting su via a typing error while trying to do other editing. So now I have no way of swapping back and forth between users and root. I have ...
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0answers
27 views
+100

Cannot connect PC and Android through bluetooth

I want to create a simple client/server app using bluetooth. I want to use an android as client and a Linux Mint 17 Cinnamon 64 bit as server. I found and adapted this script : import os import ...
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25 views

How do I get the wallpaper to fit the width of my dual monitor setup in ubuntu?

The wallpaper I'm using doesn't fit the exact dimensions of my monitors combined, so when I set the wallpaper option to span I get black bars on the far right and left with the image centered in the ...
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14 views

Triple-boot on Windows 7 machine with manual partition table, how to proceed?

I have a Dell Latitude E5440 laptop with Windows 7 64-bit Professional pre-installed on it. My aim is to have Fedora 20 64-bit with a stable kernel and Ubuntu 14.04.1 LTS 64-bit alongside Windows 7. I ...
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0answers
25 views

What is wrong with this upstart script?

I use the following upstart script: description "myjob" # Start up when the system hits any normal runlevel, and # shuts down when the system goes to shutdown or reboot. start on filesystem or ...
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2answers
27 views

What to do if you accidentally delete /var/spool/mqueue

Due to a bug in another script, there were 1000's of mails in var/spool/mqueue. I read somewhere that one should delete /var/spool/mqueue to prevent the messages from being sent. Unfortunately, ...
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0answers
24 views

How to read the console output?

In "upstart" you can add the following line to your conf file: console output It seems my script is stopped / waiting. How can I see what has been written to the console. I have access only to the ...
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1answer
31 views

Understanding linux Bridging

I have started learning networking and recently been through bridging in Linux. Bridge in Linux could be set in two ways as far as I have got by reading on internet i.e. either by bridge-utils ...
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1answer
50 views

SMBFS Mount suddenly stopped working. CIFS error

When I came in to work today, a mounted drive on our server suddenly had stopped working. In my /etc/fstab I have the following line: //172.22.64.50/Web/ /mnt/netapp smbfs ...
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1answer
43 views

Fix Skype audio input in Mint 17 Cinnamon

Linux Mint 17 Cinnamon (Ubuntu 14.04) HDA Intel PCH The microphone works well (tested with VLC's capture mode), but Skype won't catch any sound. Only PulseAudio is listed in Skype's configuration as ...
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20 views

Set default editor for 'info coreutils' [duplicate]

I'm using Ubuntu 14.04 and have this in my .bash_profile: export EDITOR=/usr/bin/vim export VISUAL=/usr/bin/vim man respects this setting but info always opens in something else, nano or it's own ...
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18 views

API for Ubuntu Linux utility panel

I want to build an application that integrates with the top menu bar on Ubuntu. Where if you click the icon you get a dynamically created drop down menu. Everpad does this and here's an example of ...
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29 views

How to properly install Apache, MySQL, and PHP on Ubuntu 10.4

I have followed a guide on how to install Apache, MySQL, and PHP on my laptop running Linux (Ubuntu 10.4) It appears I have it installed correctly but when I am not sure. I followed this guide here: ...
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27 views

Intermittent, temporary freezing

I just got na SSD for my desktop, and decided I'd install Linux on it, for a change from Windows. The problem is, I've tried Ubuntu 14.04 and Fedora 20, and on both, in the install environment and ...
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58 views

Strange bash sytax error depending on sudo usage

I made this bash function to detect if the user running is actually logged in as root user and not using sudo by checking the uid + home directory of the user executing the command: #!/bin/bash set ...
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0answers
16 views

Greek dictionary in LibreOffice

I've installed LibreOffice Version: 4.3.3.2. On Calc, I try to write in Greek but the Spell Checking put a red line bellow every word. I went on Tools -> Spelling -> Options and add there the Greek ...
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0answers
24 views

high precision subsecond cronjob replacement

I am looking for a cron replacement which could run subsecond schedule, is there have any "still alive" project which serve this purpose? Currently running Ubuntu 14
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1answer
64 views

Mounting alternate devices (with different mount options) at the same mount point

I have a server (running Ubuntu 14.04) that has a hot-swap drive bay. I typically use the hot-swap bay to mount one of a bunch of loose hard disks that I shuttle large scientific datasets around on. ...
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27 views

Install Ubuntu live USB to USB or computer

I have a live USB with Ubuntu 14.04 with things I have installed and deleted, and preferences that I've changed on it, and am wondering if it's possible to install Ubuntu onto either another USB, or ...
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2answers
25 views

Restarting youtube-dl

I feel like this should be a really simple thing to do, but I don't know how to do it. I recently updated the config file for youtube-dl and I also upgraded to the latest version. The update message ...
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1answer
88 views

Nmap script execution to detect heartbleed is failing

Wanting to setup Nmap on my Ubuntu 14.04 LTS system to detect HeartBleed vulnerability. I followed the instructions here: ...
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0answers
42 views

Accessing Macintosh HD from Ubuntu

So after I upgraded my MBP to Yosemite, I have lost dualboot. After a long struggle, I finally reinstalled refind to work properly. Unfortuantelly, when I use Ubuntu, I cannot access Macintosh HD ...
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2answers
43 views

Ubuntu cannot find or detect new wired network adapter

I want to use two ethernet cards on my machine. So I've physically inserted the new ethernet card in to my machine. However when enter the ifconfig -a command Ubuntu cannot find or detect the new ...
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1answer
50 views

Adding multiple user with shell script on Ubuntu

Can someone help me in providing me the shell script for creating multiple users on Ubuntu. Password needs to be different for each user. Thanks in advance
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1answer
36 views

Broadcom: not able to see my wifi

I recently installed Ubuntu 14.04 on a computer with a Broadcom BCM4312 802.11b/g LP-PHY wireless card. After installing the proprietary drivers available from the Ubuntu repositories, I was able to ...
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1answer
94 views

Network interface not registring ARP response

I have a server with two NIC and it's running Ubuntu Server 14.04. The first one is the interface "p3p1" and it's connected to the subnet 192.168.1.0/24 with the IP 192.168.1.100. The second one is ...
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26 views

how to fix a port no statically for client request on client side?

I have an assignment to implement: unicast multicast broadcast in Java socket programming. While implementing the multicast part I decided to do it on my own system itself, so for the purpose of ...
1
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1answer
34 views

How to change the shortcut directories in Files?

I'd like to redirect the documents, downloads, music, and videos that are on the sidebar of the files application to another location that is in another partition. So far my Internet research have ...
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1answer
26 views

Diagnosing lost network connectivity on Ubuntu

My first question here so please be gentle. :) I have a Linode running Ubuntu 14.04, with a stack managed by ServerPilot.io. Only real modification is that I'm running HHVM in a limited fashion. ...
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0answers
8 views

File transfer help with Ubuntu and ESXi

I have two esxi machines that I want to directly transfer files between. Is there a way I can facilitate that transfer from a third machine that I have Ubuntu 14.04 running on?
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2answers
37 views

Find out at what time my machine got restarted and why?

I have my ubuntu machine which is running Ubuntu 10.10 and that machine is running my app server. I am suspecting that my machine got restarted today at some time but I don't know how to find out at ...
1
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1answer
83 views

How To Send Terminal Commands To Remote Server After Connecting Via putty? [closed]

In order to listing all batch files and finding the required file from a directory, I am using windows script to connect to the linux server. I can able to connect by passing necessary parameters but ...
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41 views

Unable to create a multiboot usb stick with MultiSystem

Installed multisystem on Ubuntu 14.04 for multiboot usb. When I start MultiSystem GUI, is shows me the usb device being mounted on /media/usb0, But when I select and hit confirm, I get the error msg ...
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1answer
33 views

I purchased a Ubuntu-preinstalled, used, Asus Mini Notebook off of Amazon. I pushed the power button while it was installing updates. [closed]

Okay the subject line basically contains my question. I purchased a used Ubuntu-preinstalled Asus Mini Notebook computer off of Amazon. It worked just fine for awhile. Then one day while it was ...
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69 views

Grub rescue after corrupted hard-drive (“read-only filesystem”)

I run xubuntu 12.04 alongside a NTFS storage partition and a windows 8 partition. I moved my MySQL data directory off the xubuntu (ext4) partition, onto the NTFS partition, and did an import of a ...