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Download Microsoft Windows 8.1 Upgrade For Free Now

The much awaited final version of the free Microsoft Windows 8.1 update is now available for download, If your PC is currently running Windows 8 (or Windows RT) all you need to do is to open the "Windows Store" and you’ll see this free update prominently featured on the home page. If not, you must get the KB 2871389 update (which should be already downloaded and installed if using automatic updates) and install it manually and check again.

Windows 8.1
Windows Store Upgrade

Hdparm - Command Line Performance Tuning And Benchmarking Tool For SATA/IDE Hard-Disk Drives

hdparm is a powerful command-line utility for Linux and Windows operating systems to set and view ATA hard disk drive hardware parameters. The utility also allows users to test disk read/write performance with cached and buffered modes. The utility allows users to view and change SATA/IDE disk-drive hardware parameters like drive caches, sleep mode, power management, acoustic management, and DMA settings which are generally set to suboptimal conservative defaults to their optimal settings for best performance. Checkout the example output below for disk information command followed by disk performance test.

root@myserver:~#  hdparm -I /dev/sdc


ATA device, with non-removable media
        Model Number:       WDC WD2002FYPS-02W3B0
        Serial Number:      WD-WCXXXXX64757
        Firmware Revision:  04.01G01
        Transport:          Serial, SATA 1.0a, SATA II Extensions, SATA Rev 2.5,                  SATA Rev 2.6
        Supported: 8 7 6 5
        Likely used: 8
        Logical         max     current
        cylinders       16383   16383
        heads           16      16
        sectors/track   63      63
        CHS current addressable sectors:   16514064
        LBA    user addressable sectors:  268435455
        LBA48  user addressable sectors: 3907029168
        Logical/Physical Sector size:           512 bytes
        device size with M = 1024*1024:     1907729 MBytes
        device size with M = 1000*1000:     2000398 MBytes (2000 GB)
        cache/buffer size  = unknown
        Nominal Media Rotation Rate: 5400
        LBA, IORDY(can be disabled)
        Queue depth: 32
        Standby timer values: spec'd by Standard, with device specific minimum
        R/W multiple sector transfer: Max = 16  Current = 0
        Advanced power management level: 128
        Recommended acoustic management value: 128, current value: 254
        DMA: mdma0 mdma1 mdma2 udma0 udma1 udma2 udma3 udma4 udma5 *udma6
             Cycle time: min=120ns recommended=120ns
        PIO: pio0 pio1 pio2 pio3 pio4
             Cycle time: no flow control=120ns  IORDY flow control=120ns
        Enabled Supported:
           *    SMART feature set
                Security Mode feature set
           *    Power Management feature set
           *    Write cache
           *    Look-ahead
           *    Host Protected Area feature set
           *    WRITE_BUFFER command
           *    READ_BUFFER command
           *    NOP cmd
           *    DOWNLOAD_MICROCODE
           *    Advanced Power Management feature set
                Power-Up In Standby feature set
           *    SET_FEATURES required to spinup after power up
                SET_MAX security extension
           *    Automatic Acoustic Management feature set
           *    48-bit Address feature set
           *    Device Configuration Overlay feature set
           *    Mandatory FLUSH_CACHE
           *    FLUSH_CACHE_EXT
           *    SMART error logging
           *    SMART self-test
           *    General Purpose Logging feature set
           *    WRITE_{DMA|MULTIPLE}_FUA_EXT
           *    64-bit World wide name
           *    IDLE_IMMEDIATE with UNLOAD
           *    WRITE_UNCORRECTABLE_EXT command
           *    {READ,WRITE}_DMA_EXT_GPL commands
           *    Segmented DOWNLOAD_MICROCODE
           *    Gen1 signaling speed (1.5Gb/s)
           *    Gen2 signaling speed (3.0Gb/s)
           *    Native Command Queueing (NCQ)
           *    Phy event counters
           *    Idle-Unload when NCQ is active
           *    NCQ priority information
           *    DMA Setup Auto-Activate optimization
           *    Software settings preservation
           *    SMART Command Transport (SCT) feature set
           *    SCT Long Sector Access (AC1)
           *    SCT LBA Segment Access (AC2)
           *    SCT Error Recovery Control (AC3)
           *    SCT Features Control (AC4)
           *    SCT Data Tables (AC5)
                unknown 206[12] (vendor specific)
                unknown 206[13] (vendor specific)
        Master password revision code = 65534
        not     enabled
        not     locked
        not     frozen
        not     expired: security count
                supported: enhanced erase
        424min for SECURITY ERASE UNIT. 424min for ENHANCED SECURITY ERASE UNIT.                 
Logical Unit WWN Device Identifier: 50014ee25b269017
        NAA             : 5
        IEEE OUI        : 0014ee
        Unique ID       : 25b269017
Checksum: correct

root@myserver:~# hdparm -Tt /dev/sdc

 Timing cached reads:   27130 MB in  2.00 seconds = 13583.27 MB/sec
 Timing buffered disk reads: 312 MB in  3.02 seconds = 103.42 MB/sec

apt-fast : Get 26x Faster apt-get Installations and Upgrades

aria2 is by far the best download accelerator for Linux, now you can enjoy the acceleration power of this multi-threaded downloaded utility for your apt-get package installations and upgrades.apt-fast is a shellscript wrapper to apt-get/aptitude which utilizes the more efficient and powerful aria2 download accelerator to fetch binaries from multiple mirrors with multiple connections in parallel per package resulting in drastically improved download times.

apt-fast installer

How To Mount DD Disk Images With Read/Write Support On Windows

When it comes to perfect backup's, RAW disk-images are the choice for safest form of backup and restoration of fully functional operating-system installations. We have shared two methods of using the same to backup Raspberry Pi SD Card from Windows as well as Hot Backup's from RPi itself using Linux DD disk imaging utility. Once created we can also Mount these backup images with full read-write access for various tasks like Data recovery (For example imaging an corrupted disk and accessing the disk-image from another working computer to recover data).

OSFMount is a free Windows utility which allows you to do that, the software enables users to mount local disk image files in Windows with a drive letter which can be accessed like any other partition. The images can be mounted in read-only mode as well as write-enabled mode, OSFMount also supports creation of RAM disks (See What are RAM Disks and How they can be used to make use of non-addressable wasted RAM on Windows) which offers a huge speed boost over using disk-based images.


How To Setup Internet Access Priority With Multiple Networks On Windows

If you are using multiple NIC's (Network Adapters) to access more than one network, it gets tricky from where you internet connection comes from. Here is one such scenario and solution to make Microsoft Windows prioritize internet connection from a particular network over the other. In my example setup I have one LAN connection ( and one WiFi connection ( and would like Windows to use internet from my fixed-line broadband connected via LAN.

Networking Configuration

How To Measure Download/Upload Speed From Linux Command Line

speedtest resultThere are numerous web-services like which allow users to simply open a web-browser and benchmark their internet connections upload and download throughput with ease. However, if you need something similar for your server which does not have an graphical interface here are a few options to check network throughput from terminal/console. One can simply check download speed by using something like the command below at the terminal,

wget --output-document=/dev/null

But for a thorough check with option for outputting beautiful shareable badge like the one on the right, we will use the "Speedtest" command-line utility as shown below.

Speedtest From Terminal

Direct Download Links For Apple OS X Mountain Lion Update v10.8.5

Apple OS X Mountain Lion Update v 10.8.5 is a recommended update which improves stability, compatibility, and security of your Apple Mac computer. The update can be freely downloaded from Apple Mac Appstore, but if you need direct download links with resume capabilities use the links shared at the end of this post.

Apple OS X Mountain Lion Update v10.8.5

Apple iOS 6.1.4 Finally Gets A Jailbreak

One can easily gauge the demand for Apple iOS 6.1.3/6.1.4 jailbreaks with success of fake Apple iOS scams like Firestorm and Silv3rWind. Apple patched the evasi0n jailbreak with iOS 6.1.4 update making it unjailbreakable, but there is some good news as Apple iOS 6.1.4 has been successfully got jailbroken on iPhone 5 and the report has been verified by multiple users. A new name to the scene Developer Winocm achieved a successful untethered jailbreak for iOS 6.1.3 last week, and has now tweeted an image of Cydia running on iOS 6.1.4 and iPhone 5. He also went ahead and made public the source-code to replicate the success for others as shown below.

How to configure free DDNS for cloud computing

Cloud computing has made massive computing resources to be available instantly to users with a single command. The always available, on-demand computing infrastructure comes specially handy for developers as it allows them to create and destroy development instances easily. One of the major benefit of cloud computing is you only pay for what you use, so when you are not working on a cloud-computing instance it can be powered-down and no computing cost will be charged. One drawback/annoyance of using this strategy is that the "publicly addressable" IP address will change with every reboot, to get past this we will show you how to use an automatically updated free dynamic dns system so you don't get bothered about the changing IP address anymore.

DDNS Solution For Cloud Computing

Sneaksy - Minimalistic Password-Protected Hidden Folder Solution

Sneaksy is a super-minimalistic, hidden folder solution which protects sensitive data from unauthorized access. The portable and open-source application works on Windows XP, Windows Vista, Windows 7 and Windows 8 platforms. Sneaksy is very simple to use, just download and launch to get started - there is no UI as such, on first run a small red-box will display on top-left corner of the screen where user inputs the desired password which will be visible so you can confirm what is entered. On subsequent runs you will need to use this password and it will no longer be shown, pressing enter will further shrink the password prompt in the corner unlocking the "Files" folder on desktop allowing authorized access. Click on the only visible "Red" handle in the corner to lock and hide the folder and exit the application.

This is just one of the many helpful tips we have posted, You can find more stories here,
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