Ubuntu 12.04 (aka Precise Pangolin), is the sixteenth release(version) of Ubuntu from Canonical.

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Google spreadsheet thinks Chrome is Firefox

I am an Ubuntu user with Google Chrome 39.0 and whenever I enter a Google Spreadsheet-document (with Chrome), I get a warning header saying that "This version of Firefox is no longer supported, please ...
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278 views

Hide exim4 version from email headers

I've setup exim4 on a ubuntu 12.04 server. When an email is sent, the current "Received" header has the following content: Received: from user by example.com with local (Exim 4.76) (envelope-from ...
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4k views

“Caller rejected because extension not found” in asterisk

I'm an asterisk newbie and I've just installed it on my ubuntu 12.04 server with sudo apt-get install asterisk. I'm following the tutorial for asterisk from here: ...
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25 views

“No space left on device” when writing to NTFS on Ubuntu

I'm on Ubuntu 12.04 and want to backup data to my external hard drive which is NTFS. When running cp -rp or rsync, I get no space left errors like this: `rsync: mkstemp "/media/Expansion ...
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142 views

Error: Unknown Puppet subcommand 'module'

It seems there is a problem with puppet on Ubuntu 12.04 LTS as its missing the module subcommand as follows: Installed puppet in version 2.7.11 $ puppet module install rafaelfc-pear Installing ...
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1k views

Unable to capture authentication handshake using airodump-ng

I am using airodump-ng to capture authentication handshake, so I ran airodump for almost 49 minutes and the output appearing as CH 9 ][ Elapsed: 49 mins ][ 2013-04-14 10:58 ][ fixed channel prism0: ...
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8k views

Mouse/Touchpad stuck in Ubuntu 12.04 after resuming from Suspend

I have recently installed Ubuntu 12.04 and I am a first time Ubuntu user. I put my computer in Suspend mode and then when I resumed the touchpad was not working. It was locked and the cursor was not ...
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1answer
4k views

Cannot set 16:9 resolution on ubuntu 12.04 run in VirtualBox

I recently installed virtualbox. I tried to run ubuntu 10.04 and it worked fine in fullhd resolution. Then I installed Ubuntu 12.04 and now when I to setup up any fullhd resolution UI becomes very ...
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How to download and install specific version of sun-java6-jdk on ubuntu

I am using Ubuntu version 12.04 (via VM) I downloaded and installed java: sudo apt-get install python-software-properties sudo add-apt-repository "deb http://archive.canonical.com/ lucid partner" ...
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19 views

Ubuntu-Rescue Remix Does Not See Hard Drive

I am trying to copy over data using the Ubuntu-Rescue Remix bootable cd but this cd does not see my hard drive! What can I do so that the URR is able to see my hard drive and I can save my data? I ...
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1answer
20 views

Device Is Busy When Trying To UMount

I am using the Ubuntu Rescue Remix and Ddrescue. I am in the process of creating a RAW image onto a 'good' drive (sdc) from a 'bad' drive (sdc). I used the command sudo ddrescue -r 3 /dev/sdb ...
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11k views

How to connect bluetooth headset via command line on ubuntu 12.04

I want to connect my computer to bluetooth headset. My computer has ubuntu 12.04 64 bits server operating system with no gui. So I must connect my computer via command line. But at internet ...
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13 views

Ubuntu 12.04 can't log into graphical user interface

Somehow when I update packages, I lost the graphics driver installed in my system, and it now only logs me into tty1. when I press Ctrl + Alt + F7 the cursor blinks at the top of my screen and nothing ...
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31 views

Computer slow after plugged into wrong voltage

So I set up a desktop computer running ubuntu in a classroom that was running through an AVR at 220 volts. I got a report that it wasn't working, so I came to look at it, and sure enough, fans and ...
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1answer
2k views

VMware vmplayer failing to launch VM on Ubuntu: “Could not open /dev/vmmon”

I get the following error when trying to launch an ova VM using VMPlayer on Ubuntu 12.04 Could not open /dev/vmmon: No such file or directory. Please make sure the kernel module 'vmmon' is loaded I ...
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3answers
9k views

Ubuntu 12.04 suddenly cannot connect to WPA2/WPA Personal protected connection. Windows 7 can

I have a laptop with Windows 7 and Ubuntu 12.04. I have a Cisco E1200 and when I set it up, it created 2 SSIDs. Let's name them: MyConnection (WPA/WPA2 personal), and MyConnection-Guest (no ...
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384 views

Chromium Omnibox not showing search suggestions?

Chromium omnibox is not showing suggestions, i have checked the settings, prediction is enabled. When i changed the search engine to bing it was working fine with suggestions but when i revert back ...
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8k views

Wired Connection Suddenly stopped working on ubuntu 12.04 after update

Here is the thing! am on day 5 of no wired internet connection. I have spent the last 4 days searching through every forum and Q&A sites, until i finally decided to post this, so I have done my ...
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1answer
41 views

Permissions Denied - After successful connection as 'root' ONLY when connecting externally

So, I have been using Ubuntu Server 12.04.01 for the past couple of weeks after using Ubuntu Desktop 13.10 for about a couple of months and find it a refreshing start after switching over from the ...
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14 views

How to Install Windows OS if Already have Ubuntu 12.04 Installed [duplicate]

I have purchased a dell laptop with Ubuntu Linux 12.04 installed in it, and I want to install Windows Operating System on Ubuntu and have dual booting. That is, to install the Windows OS in the ...
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23 views

I am not able to access a shared folder data from a remote IP address

File file = new File("//192.168.1.100/sharename/sharefolder/User2.jpeg"); System.out.println(""+file.exists()); I am not able to access file named "User2.jpg" available on given IP address from Java ...
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2answers
822 views

Bootstrap - Jekyll: Forbidden - no access permission to `/'

I'm doing a tutorial on Twitter Bootstrap and apparently I need to install Jekyll for this. I've followed the installation procedure, but now I'm stuck getting Jekyll to work. In the terminal (Ubuntu ...
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2answers
2k views

How to install Xen (XCP-XAPI) on Ubuntu 12.04 LTS Server?

How to install Xen (XCP-XAPI) on Ubuntu 12.04 LTS Server in a cross platform approach (Windows and Linux users)? I need a complete and comprehensive guide on the subject covering all steps necessary ...
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1answer
259 views

system clock is 5.5 ahead although ntp

I've checked configs and even installed ntp server, nothing seem to fix this, sudo dpkg-reconfigure tzdata Current default time zone: 'Asia/Tehran' Local time is now: Thu May 9 00:49:38 IRDT ...
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23k views

How do I reactivate my MDADM RAID5 array?

I've just moved house which involved dismantling my server and re-connecting it. Since doing so, one of my MDADM RAID5 arrays is appearing as inactive: root@mserver:/tmp# cat /proc/mdstat ...
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46 views

VLC MMS video via network - stutters

I'm using VLC to play a MMS video (1.5X speed) that is streamed from a "members only" website. The video works great except that it hangs/stutters every few seconds. So I increased the following ...
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3answers
4k views

Make .sh file executable

I have a .sh file which is not becoming an executable. I tried doing it in the properties but as soon I ticked the checkbox, the tick vanished in a second. I then tried sudo chmod +x filename.sh ...
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29 views

Harddisk reinstalled - can data be recovered?

We have a laptop here which had Ubuntu installed on it. When it came back we removed the old partitions, created a new one and installed Windows 7 on it. This install is still fresh. Will it be ...
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8k views

Automount ZFS zpool in Ubuntu 12.04

So, I've been told that ZFS for Linux has the ability to automatically mount a zpool on system startup in Ubuntu 12.04, but it doesn't work for me and I can't find any documentation on how to make it ...
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1answer
4k views

How to depend on an upstart job from an init script on Ubuntu 12.04

I am using Ubuntu 12.04 LTS and this system uses primarily upstart jobs. Unfortunately my system also depends on a manually compiled dbmail server, which only has a init script, but no upstart script. ...
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Apache2 SetEnv For Multiple VirtualHosts

I am looking to use a single declaration of a SetEnv var in my apache2.conf file & have that variable used by all the virtualhosts I currently have virtualhost-specific vars set up, but would ...
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3answers
2k views

Unicode Composition in Sublime Text

I'm not able to use unicode composition (The ctrl+shift+u method) to enter unicode characters in Sublime Text 2 (v2.0.1, Build 2217) on Ubuntu 12.04 (Unity). To reproduce, just open up a tab and do ...
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1k views

setting up wifi for static ip on ubuntu 12.04

I want to setup dhcp and static IP I have 2 lan card, Ubuntu 12.04 and it is a laptop the wireless interface I want to give a static IP and lan to have a dynamic ip how should I go about making ...
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111 views

Make eclipse pdt default editor for php, css etc. files in ubuntu 12.04?

I downloaded Eclipse php recently. When i want to open a css or php file it doesn't show option for eclipse, not even in the other applications list. I want to set Eclipse as my default editor to ...
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2answers
3k views

Writing a CPU/RAM usage log over a period of time to file on Ubuntu 12.04

I am looking for a way to write the CPU utilization into a text file every 10 seconds. How might I go about setting this up? I'm running Ubuntu 12.04.
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8answers
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Why Virtual Box won't give me option to create 64 bits guests?

My host is x64 bits Windows 8.1. I downloaded the latest Virtual Box (4.3) and I'm trying to create a VM with a 64 bits Ubuntu OS (ubuntu-12.04.3-desktop-amd64). When I go to New VM wizard, it ...
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2answers
2k views

How to install the mono-develop IDE for mono 3.0.2 on Ubuntu 12.04.2 LTS 64?

I've downloaded (from the mono-project.com web site) and installed mono 3.0.2 for a specific purpose in /usr/lib on my Ubuntu 12.04.2 LTS 64 bit system using these commands: wget -O ...
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1answer
341 views

All rails application logs being written to apache error log

I've deployed a ruby on rails 4.0.3 application to a server that I've configured with the following likely relevant software: Ubuntu 12.04.4 x64 server Phusion Passenger 4.0.37 Apache 2.2.22 Ruby ...
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How to reinitialize processor for /sys in Linux

I have upgraded my laptop from Intel Pentium P6100 to Core i5-460M. i5 supports Turbo Boost. To switch this on/off I need to do: echo 0 or 1 > /sys/devices/system/cpu/cpufreq/boost But my System ...
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2k views

How to shutdown ubuntu server from shell script?

I wrote a simple shell script to shutdown an ubuntu server. Then I created a cron job to execute this script at 23:59 everyday. #!/bin/bash sudo shutdown -h now I got this error message: sudo: no ...
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50 views

how to monitor network/cpu/memory/disk usage by each Rails app

I run many Rails app on linode VPS I want to charge my customers by their usage, Is there anyway to monitor each Rails app's usage ? I need these information network/cpu/memory/disk usage Any ...
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2answers
439 views

Postfix SMTP SSL config: Can't send email but can receive it with SSL

I am trying to finish configuring my postfix/dovecot mail server that sits behind my home's router/firewall. I'm on Mint/Ubuntu 12.04. I'm close. I can connect/retrieve emails via SSL but can only ...
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1answer
315 views

Package problems after upgrade

I installed a new upgrade on ubuntu which seemed to fail near the end. Now I'm being told that an error has occurred and to please run apt-get to see what's wrong. After some further tries with that I ...
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1answer
25 views

Change service apache2 on linux

I'm on ubuntu 12.04. The default exe location for service apache2 (usage ex: sudo service apache2 start) currently points at /etc/apache2/bin/httpd, but that will not modify the current running ...
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21 views

I want to start VM for specific time

I am designing a system in which lot of VMs are there which run on KVM. My physical resources are limited, that is why I want to allow some of the VMs to run for some specific time(say Every Wednesday ...
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5answers
11k views

How can I remove the ssh last login info?

Whenever I log into a server using ssh. The prompt gives me "last login" information. I was wondering where this information comes from. How can I remove this record so when someone else log into the ...
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5answers
3k views

How to whois new TLDs?

How can I look up new TLDs, such as .email, .guru, etc., using the whois command in linux? Running whois on a new TLD only gives the response: No whois server is known for this kind of object.
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shifting between windows in byobu corrupts putty scrollback

I use byobu-screen through putty. when i use multiple windows and shift between them. the scroll back buffer of these windows gets intermixed, losing the whole purpose of scrollback. I dont want to ...
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2answers
2k views

Windows 7 BSOD, safe mode working,

I need help getting my dualboot with Windows 7 and Ubuntu 12.04 to work, and since I'm not to experienced with computers I've been pretty dumb. Here's what I've done, quite shortend though: First ...
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121 views

Unreliable detection of external monitor

I am using a Lenovo T410S with a port replicator that has two external monitors attached using DVI. Some times when I boot into Linux, one monitor is detected. Other times it is two. Oddly enough, ...