How to install Windows 7 from a USB - part 1

So after reading our review of Windows 7, you’re ready to take the plunge and upgrade to Microsoft's new OS. You’ve read our upgrade guide, decided whether you want 32- or 64-bit Windows 7, and bought your retail box. But what if you want to install Windows 7 on a netbook or other computer without an optical drive?

Fortunately, you’re not out of luck, because Windows 7 (and Vista, for that matter) can be installed from a USB storage key. Not only does installing from a USB key remove the need for a DVD drive, the install time is also greatly reduced – we shaved off minutes from the total install time. Our step-by-step guide will have you rocking the new version of Windows in no time!

Note: This guide will only work within Windows Vista or 7.

Time = 1 hour

What you need:

• 4GB USB key
  $10, www.newegg.com
• WinRAR
  Free Evaluation Copy, www.rarlab.com
• Windows 7
  $99 (OEM)

1.    Format Your USB Key

Plug in your USB key and back up any existing data stored on it. You’ll need to format the key before you can make it a bootable device.

Open up a Command Prompt as an Administrator. You can do this by finding the cmd.exe in yoru Windows/System32 folder, right-clicking the executable, and selecting “Run as Administrator”. Alternatively, type CMD in the Start Menu search field and activate the Command Prompt using Ctrl + Shift + Enter.

You should be under c:\Windows\system32 (assuming your Windows partition is the C drive). Type “diskpart” in the command line to enter the Disk Partition command line tool, which lets you format and create partitions on active disks.

Type “list disk” to reveal a list of all your active disks, each of which is associated with a number. Make a note of which one is your USB key, based on the capacity. In our screenshot below, our USB drive is Disk 6 (8GB).

Next, type the following commands, one at a time:
Select Disk # (Where # is the number of your USB disk. We typed “Select Disk 6”)
Clean (removes any existing partitions from the USB disk, including any hidden sectors)
Create Partition Primary (Creates a new primary partition with default parameters)
Select Partition 1 (Focus on the newly created partition)
Active (Sets the in-focus partition to active, informing the disk firmware that this is a valid system partition)
Format FS=NTFS (Formats the partition with the NTFS file system. This may take several minutes to complete, depending on the size of your USB key.)
Assign (Gives the USB drive a Windows volume and next available drive letter, which you should write down. In our case, drive “L” was assigned.)
Exit (Quits the DiskPart tool)

OpenVPN Client Configuration on Ubuntu 12.04

OpenVPN Client Configuration on Ubuntu 12.04

To use the Ubuntu as OpenVPN client, install these packages:

sudo apt-get install network-manager-openvpn

sudo apt-get install network-manager-openvpn-gnome

Select the “Edit Connections” from Network Manager GUI:

From the VPN tab, click on ‘Add‘ button:

Select OpenVPN as the VPN Connection Type and press “Create“:

Enter all the required information like OpenVPN’s server ip address/name as the “Gateway“, “Type” to “Certificates (TLS)“, locate and point your “User Certificate” , “CA Certificate“ and “Private Key“. Also click on “Advanced” button:

Enable compression or other special settings as per your requirement:

Connect to the VPN:

If everything go well, it will show you the success message:

Check your interface configuration, you will find one new interface named “tun0” something:

ifconfig

Hope this will help you!

How to Remove Vmware Workstation From Ubuntu 13.04 for Good

VMWare Workstation doesn't ship in a deb, so it isn't registered in dpkg (which is why you can't find it in the software center). It does have an install and uninstall utility though.

To uninstall VMWare Workstation, you will need to run

vmware-installer --uninstall-product vmware-workstation

If you just run

vmware-installer

by itself, it will print all the options you have available. If you run

vmware-installer -l

It will print a list of all VMWare products you have installed.

How to Install Ruby & Rails on CentOS, Fedora or RedHat

#get root access

$su -

$ cd /tmp

 

#Remove old Ruby

$ yum remove ruby

 

# Install dependencies

$ yum groupinstall "Development Tools"

$ yum install zlib zlib-devel

$ yum install openssl-devel

$ wget http://pyyaml.org/download/libyaml/yaml-0.1.4.tar.gz

$ tar xzvf yaml-0.1.4.tar.gz

$ cd yaml-0.1.4

$ ./configure

$ make

$ make install

 

# Install ruby

$ wget http://ftp.ruby-lang.org/pub/ruby/1.9/ruby-1.9.3-p194.tar.gz

$ tar zxf ruby-1.9.3-p194.tar.gz

$ cd ruby-1.9.3-p194

$ ./configure

$ make

$ make install

 

# Update rubygems

$ gem update --system

$ gem install bundler

 

#Test ruby and rubygems are working

#Close shell and reopen for changes to take effect

$ruby -v

$gem --version

 

# Rails

$ yum install sqlite-devel

$ gem install rails

$ gem install sqlite3

Installing LXC ( Linux Containers ) With LXC Web Pannel In Ubuntu

What is LXC

Linux Containers (LXC) are lightweight virtualization technology and provide a free software virtualization system for computers running GNU/Linux, This is accomplished through kernel level isolation, It allows one to run multiple virtual units (containers) simultaneously on the same host.

• manage resources using PCG ( process control groups ) implemented via cgroup filesystem
• Resource isolation via new flags to the clone(2) system call (capable of create several types of new namespace for things like PIDs and network routing)
• Several additional isolation mechanisms (such as the “-o newinstance” flag to the devpts filesystem).

The LXC package combines these Linux kernel mechanisms to provide a userspace container object, a lightweight virtual system with full resource isolation and resource control for an application or a system.
Installing LXC ( ubuntu 13.04 )

 $ sudo apt-get install lxc

Creating container

$ sudo lxc-create -t ubuntu -n ubuntu
$ sudo lxc-start -n ubuntu

Login in container

$ sudo lxc-console -n ubuntu -t 1

Install LXC web panel

$ sudo apt-get install lxc debootstrap bridge-utils -y
$ sudo su
$ wget http://lxc-webpanel.github.com/tools/install.sh -O - | bash

Login in LXC web panel

open broswer 

http://localhost:5000  
username :  admin 
password admin

web panel config file :  /srv/lwp/lwp.conf

useful links :

• https://help.ubuntu.com/community/LXC
• https://help.ubuntu.com/12.04/serverguide/lxc.html
• http://lxc.sourceforge.net/index.php/about/lxc-development/
• http://lxc-webpanel.github.io

Source :  http://www.computersnyou.com/2123/2013/07/installing-lxc-with-lxc-web-pannel-in-ubuntu/  By Alok Yadav On 12 July, 2013