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Sunday, February 26, 2017


1.  The increased use of cryptocurrencies such as Bitcoin among private users and some businesses has opened a new avenue of research in the field of digital forensics involving cryptocurrencies. Since the creation of Bitcoin in 2008, cryptocurrencies have begun to make a presence in the world of e-commerce. Cryptography serves as the underlying foundation for Bitcoin, which gives it the benefits of confidentiality, integrity, nonrepudiation and authentication. Having been designed and built upon the foundation of these four objectives makes Bitcoin an attractive alternative to mainstream currency and provides users with the benefits of payment freedom, security, very low fees, and fewer risks for merchants.This presentation brings out the FORENSICS aspects as associated with BITCOINS.

2.  I gave this presentation at DICE-2017

3.  Sharing the copy here for info please to all interested neitizens

4.   Few pics enclosed below :

5.    A small clip from the conference below

Sunday, September 25, 2016

Privacy Concerns & Server Locations : Hike-Telegram-Whatspp

1.    I have always seen and observed discussions amongst my friends and circle about which Chat Messenger is safe and which is not in terms of safety and privacy aspects.Whether the servers are located inside the country or they are off-shores,how their data is shared and how is their privacy likely to be compromised bu third parties.....So to just do a over view check,here I present an over view of such FAQs in context of Server Locations and data sharing aspects,primarily sourced from the original websites.

Sunday, September 04, 2016

Nextcloud 10 installation @ Ubuntu 16.04 LTS

1.   Nextcloud is open source file sync and share software for everyone from individuals operating the free Nextcloud Server in the privacy of their own home, to large enterprises and service providers supported by the Nextcloud Enterprise Subscription. Nextcloud provides a safe, secure, and compliant file synchronization and sharing solution on servers that you control.

2.   This post shares screen shots of my installation of the same in UBUNTU 16.04 LTS.The screen-shots are self explanatory along with the command sets available for direct lift if one is interested.

Reference help of this post :
Video post of this at

Here's my ip address configuration as set on the virtual machine Ubuntu.
Terminal commands :

> apt-get update
 > apt-get install lamp-server^

> apt-get install libapache2-mod-php7.0 php7.0-mbstring php7.0-curl php7.0-zip php7.0-gd php7.0-mysql php7.0-mcrypt
> apt-get install php-xml
Goto the nextcloud site at and download the zip file for nextcloud installation.This one is version 10

Downloading here as seen completing :
Goto the Downloads folder and unzip it
> unzip

> mv nextcloud /var/www/html
> chown -R www-data:www-data /var/www/html/nextcloud

Now we need to Configure MariaDB for this vide these commands as mentioned :
> mysql_secure_installation
Type Yes for all except may be root password which u might want to retain.

GRANT ALL PRIVILEGES ON nextcloud.* TO 'nextcloud'@'localhost' IDENTIFIED BY 'anupam';

> Gedit /etc/mysql/my.cnf

Add the following three lines at the end:
log-bin = /var/log/mysql/mariadb-bin
log-bin-index = /var/log/mysql/mariadb-bin.index
binlog_format = mixed


Now we need to Configure Apache Web Server
> sudo a2enmod rewrite
> touch /etc/apache2/sites-available/nextcloud.conf
> ln -s /etc/apache2/sites-available/nextcloud.conf /etc/apache2/sites-enabled/nextcloud.conf
> nano /etc/apache2/sites-available/nextcloud.conf

Add the following:

ServerAdmin admin@ubuntu
DocumentRoot "/var/www/html/nextcloud/"
ServerName youripaddress
ServerAlias ubuntu

Options FollowSymLinks
AllowOverride All
Order allow,deny
allow from all

ErrorLog /var/log/apache2/
CustomLog /var/log/apache2/ common

here you ready to go....just type the ipaddress in the web browser...

Wednesday, August 24, 2016

BOSS Advanced server : Installation screenshots

1.   Bharat Operating System Solutions (BOSS) is a free and open source Linux distribution developed by the National Resource Centre for Free/Open Source Software (NRCFOSS) of India. BOSS GNU/Linux is also known by the acronym BOSS. The latest version is 6.0

2.    BOSS Advanced server supports Intel and AMD x86-64 architecture. It is bundled with web server, proxy server, database server, mail server, network server, file server, SMS server and LDAP server. It also contains various administrative tools as webmin, Gadmin, PHP myadmin, PHP LDAP admin and PG admin.This post gives a step wise screen shot sequence as it happens in a virtual box environment while installing the server edition of BOSS