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Introduction to IP Addressing    In the internetwork, internet protocol(IP) address is used to identify a node. Internet Protocol has two versions IPv4 and the other one is IPv6. Logical address is the another name of IP addressing. IP Address Quality Identification / location The length is same Network will divided based on the size IP Address – 32 bit address Above divided into 4 Octets Each octets ranges from 00000000 …………………………… 11111111 i.e from […]

BASH COMMANDS starts - V,W,X,Y     V v: This command lists the contents of a directory. vdir: Same as above. vi: This is a text editor. vmstat: This command will report on the virtual memory statistics. W wait: This command directs the system to wait for a process to finish. watch: This command will display or execute a program periodically. wc: This command prints the word, byte and line counts. whereis: This command will search a user’s $path, source files and man pages  which: This command searches only for a user’s $path for a program. while: Use this to execute commands. who: This command will print the usernames that are currently logged into the system. whoami: This is a command that prints the current name and user id. wget: This will retrieve the web pages or files through HTTP, HTTPS or FTP. write: Use this to send messages to other users. X xargs: This command execute’s a utility and passes a constructed argument list. xdg-open: T...

Linux Screen Command Examples     Installing Screen Linux screen command already installs on system. You can find screen command in /usr/bin/screen on most RHEL & CentOS distributions. You can find this out from which command in command line. Source Code       [ root @ linuxpathfinder ~ ] # which screen / usr / bin / screen If screen command is not install on server, you can install from redhat package manager (RPM) or with package file as show below: Source Code       [ root @ linuxpathfinder ~ ] # yum install screen Resolving Dependencies -- > Running transaction check --- > Package screen.x86_64 0:4.0.3-16.el6 will be installed -- > Finished Dependency Resolution Dependencies Resolved ==================================================================================================== Package                  Ar...

How to Get Free Genuine Windows 10 Even If You Don’t Have Windows 8 or 7   Share on Facebook Share on Twitter + What's This? It’s an old news that Windows 10 will be available as a free download to Windows 7 and Windows 8 users. This upgrade will be available to the users free of cost if they will avail this upgrade offer within one year starting from July 29. Now what if you don’t have Windows 8 or 7 and you want to get your hands on Windows 10? A ccording to a new process highlighted by Microsoft in a new blog post , you can avail free Windows 10 without Windows 7 or 8. If you are running the Insider Preview of Windows 10, build number 10130, you will be able to get the final release build on July 29 and further releases. Microsoft highlights that this version will be genuine. Right now if you need to get a Windows 10 Preview build, you are automatically opted in to the Insider Program. But as the release date comes nearer, the Insider...

Top 5 Supercomputers Of The World   Share on Facebook Share on Twitter + What's This? Courtesy: Prof. Jack Dongarra Supercomputers of today are the retrogressive image of the one’s in 1960s i.e. a gigantic machine racking up an entire room with a huge screen and hundreds of wires and buttons. S ure, modern computers look like a stack of books in a library, but the computing prowess of these babies is outrageous. The processing power of the latest Supercomputers  is calculated in Petaflops ( ability to do one quadrillion floating point operations per second) Let’s begin the top 5 list of Supercomputers of this generation. 5. Mira (USA) Mira is IBM’s self-built Supercomputer that has the peak performance of 8.6 petaflops. At Argonne National Laboratory, US, it uses IBM’s BlueGene/Q platform with 786,000 core processors. 4. K Computer ( Japan) At 10.5 petaflops, Fujitsu’s K computer is located at Japan’s RIKEN Adv...

Top 5 Best Free Data Recovery Software of 2015   Accidentally pressing the Delete key, someone deliberately deleting your valuable data or perhaps a software bug creeping into the system causing your hard disk to go corrupt- a recipe for havoc isn’t it. Instead of crying out loud and cursing -“Why? Why did it have to happen to me” or “What the hell was I thinking while doing so?” you would definitely prefer to recover the data back at any cost without any fuss. Here is where the data recovery software come in handy. Although truly speaking the best way to avoid such a harrowing experience is to regularly take a good old real-time backup! But just in case you don’t, we have some of the best free data recovery software for you. W e compiled this list of best free data recovery software considering factors such as whether the software can recover RAW, Unallocated, Corrupt or Formatted Hard Disk, its ability to recover from different file systems such as FAT, ...