Tuesday, June 16, 2015

FileHippo App Manager

Are you looking for a software using which you can scan your PC for all installed softwares and updates available for them? Then FileHippo App Manager is a recommended solution. It was earlier known as FileHippo Update Checker. It is handy for updating most popular softwares and they have a built in downloader and installer so you don't need to open each webpage to download the softwares. It will download automatically when clicking on Download button. Installation process will begin immediately once download is complete.

Step 1: Download FileHippo App Manager from http://filehippo.com/download_app_manager/ and install. After installing run the software and click on SCAN button to start scanning your PC for updates.


Step 2: FileHippo App Manager shows results. A list of softwares for whom update is available is displayed. Click on Download & Run to download the latest setup and install it.

Sunday, June 14, 2015

Top 10 Full HD Android Smartphones Under 20000 Rupees

If you are a fan of movies or gaming and looking for a Full HD (FHD or 1080p) budget smartphone then you are at the right place. All these android smartphones are well under 20,000 Rupees (INR).


#1: Mi 4
Display: 12.7 cm
Front / Rear Camera: 8 / 13 MP
Processor Clock / Core: 2.5 GHz / Quad
O.S.: Android v4.4.4 KitKat
Graphics: Adreno 330
RAM / ROM: 3 / 16 GB
Internal / External Storage: 16 GB / -
Battery: 3080 mAh
SIM: Single
FM Radio: Yes


#2: Gionee Elife S5.5
Display: 12.7 cm
Front / Rear Camera: 5 / 13 MP
Processor Clock / Core: 1.7 GHz / Octa
O.S.: Android v4.4.2 KitKat
Graphics: Mali 450
RAM / ROM: 2 GB / -
Internal / External Storage: 16 GB / -
Battery: 2300 mAh
SIM: Single
FM Radio: Yes

SUPERAntiSpyware

If you are a windows user having one major antivirus (free or paid) which does all the heavy work is never enough. If you are lucky enough and your primary antivirus doesn't stop windows' default antivirus Windows Defender then also you need a secondary antivirus program just like SUPERAntiSpyware to remove vulnerabilities that are not detected and removed. So if you are frustrated with those ads showing in browser and some mysterious things that does not let you change browser settings or some icons turning into links or some similar issue then try this software once. SUPERAntiSpyware removes tracking cookies and adwares that are not usually identified and deleted by many big antivirus players. Even free version is very very useful. Thus using this tool is a must. Being a tiny software, having installed an antivirus, it does not slow down your PC. So use it with Norton / AVG / Avast / Kaspersky / QuickHeal / ESET / BitDefender or whatever antivirus or internet security program you already have. The following is a pictorial guide how to use it. As they say Remove spyware, NOT just the easy ones!

Step 1: Download from http://www.superantispyware.com/.

Step 2: Install.

Step 3: Check for updates.

30 Must have softwares for Kali Linux

Kali Linux is successor of BackTrack operating system that is developed by Offensive Security. Kali Linux comes as a full fledged o.s. for penetration testing. It has softwares preinstalled like Wireshark, Kismet, Metasploit framework, Aircrack ng, John the ripper and many many more tools for password cracking, data recovery, digital forensics and penetration testing by performing various attacks on websites and wired and wireless networks. But if you want to use Kali Linux as a your only o.s. for all your daily work then there are some softwares that you need to install. This softwares includes alternatives to Windows softwares in linux like Microsoft Office, Internet Explorer, Notepad, Outlook Express, uTorrent, Windows Media Player, Winzip etc.

HTTP/2 is here!

The Internet we know is changing! IPv6 is already in use as we ran out of IPv4 addresses, 802.11ac standard in use which provides hi speed wireless communications and now comes HTTP/2 that is Hypertext Transfer Protocol 2.0. The current version in use is HTTP 1.1 which will soon be replaced by HTTP 2.0. It is based on SPDY protocol.

HTTP 1.1 is standardized in RFC 2068 published in January 1997 and HTTP 2.0 is standardized in RFC 7540 published in May 2015. It is developed by IETF HTTPbis Working Group which includes Mozilla and Google developers. HPACK compression was devised for header compression as GZIP was not safe anymore. HPACK is standardized in RFC 7541 published in May 2015. Compression reduces RTT for header transfer due to slow start of TCP.

Sunday, June 07, 2015

UTRING - Unique Random Numbers

To know more about TRING visit:

UTRING is a modification to TRING. UTRING stands for Unique TRING. It generates and randomizes all the possible positive integer values between the range. It can be used in applications like transposition ciphers and games like bingo(housie).

Step 1: Run UTRING.exe. No need to install.


Step 2: Fill up the required inputs.
Select YES if you want 0 to be included in the output.

TRING - Random Number Generator

TRING is a windows software to generate True Random Numbers. It is based on Liner Congruential Model. This pseudo random number generator takes 4 inputs A,B,X,M from user to be used for the modified algorithm based on LCG approach. This generator is not meant to generate cryptographically secure random numbers i.e. if the values of A,B,X,M is available a crypt-analyst might crack the algorithm to predict the output over a time period. But that does not mean it is worthless. It can be used extensively for generating seed values to other pseudo-random number generators or true random number generators. Values obtained from it can be used for scientific research applications.

Step 1: Run TRING.exe.


Step 2: Insert values for A,B,X,M.
A,B - values for multiplication and addition
X - initial seed value
M - modulo

Friday, June 05, 2015

Inverse Finder v2.0

This is a tiny calculator specially designed to calculate the inverse of a given number in a given modulo. Inverse are widely used in Finite field (Galois field) calculations and cryptography while using Public Key Infrastructure. So overall it is a must have for mathematicians, physicists and computer scientists. Download links and screenshots are as followed.

Step 1: Run InverseFinder.exe. No need to install it. It will open a window like this.


DragonCopy v1.1

Did you ever feel the need of a software that can easily copy all files within a folder from one location to another? Then DragonCopy is your dream come true! This tiny little simple software lets you copy bunch of files from one place to another and saves you from the hassle of browsing back and forth through each directory and performing copy and paste every time. See how it works in below screenshots.

Step 1: Open DragonCopy_1_1.exe file. No need to install.


Step 2: Select folder to copy.

Wednesday, June 03, 2015

MapReduce in Hadoop

After installing Hadoop you will go for MapReduce operations or Hive NoSQL implementation. Here I am going to demonstrate two mapreduce application already provided in hadoop to test the architecture which will help you getting familiar with it. First one is calculating value of Pi and other one is running Terasort test.

1. Calculate value of Pi.

Hadoop jar /root/ Downloads/hadoop/share/hadoop/mapreduce/hadoop-mapreduce-examples-2.7.0.jar pi 2 10



Install Hadoop in Kali Linux

In this tutorial I am going to demonstrate the steps to setup and install a single node hadoop cluster in kali linux.

Installing Hadoop:

Step 1: Install Java if it is not present on your machine.

Step 2: Download Hadoop and extract it.

Step 3: Set environment variables in ~/.bashrc.

export HADOOP_HOME=/root/Downloads/hadoop
export HADOOP_MAPRED_HOME=$HADOOP_HOME
export HADOOP_COMMON_HOME=$HADOOP_HOME
export HADOOP_HDFS_HOME=$HADOOP_HOME
export YARN_HOME=$HADOOP_HOME
export HADOOP_COMMON_LIB_NATIVE_DIR=$HADOOP_HOME/lib/native
export PATH=$PATH:$HADOOP_HOME/sbin:$HADOOP_HOME/bin:$JAVA_HOME/bin:$HIVE_HOME/bin:$DERBY_HOME/bin
export JAVA_HOME=/usr/local/jdk1.7.0_79


Step 4: Apply the changes.

source ~/.bashrc

Tuesday, June 02, 2015

Steganography using StegoMagic

Steganography:
It is a method of hiding data into other files. The most common practice is to hide some text information in pictures or audios. The reason behind this is such files like an image is made up of many bits, thus changing a few of them won't make any significant impact to human eye or human experience.

StegoMagic:
It is a software developed by 4 Indian programmers and is available freely. It uses a DES encrypted password to protect the data.
Visit http://www.oocities.org/tmx575/ to download StegoMagic.

How to use?
Here I have demonstrated how to hide a text file into image file. Follow the below guide with screenshots for details.

Monday, June 01, 2015

Fix Visual Studio Update Error in Windows 8

I am using Windows 8.1 build 1 (or 8.1.1) and I was having issues while installing updates for windows. It was because of Visual Studio 2010 Service Pack 1 (sp1) which was of size 195 MB and it was failing every time I tried to installed it. It was categorized as an important update so I tried following Microsoft's support blogs for the errors but had no success. So today after a little googling I found a solution to this bug.