Compiling Bitcoin Core Source Code : Ubuntu 16.04 LTS

1.   Bitcoin Core is the reference implementation of bitcoin and anyone ON with any projects around bitcoin would need to compile the bitcoin source code to create the bitcoind for his/her own node. Ubuntu is usually the operating system recommended to run Bitcoin Core.This post will build upon with screenshots as done and terminal commands as executed to compile the same vide GIT.

2.  The machine I have used here is a Ubuntu 64 bit running on a virtual box platform with the following details as seen in the screenshot :

Now on I will just share the terminal commands as i executed in the terminal :

sudo apt-get update

sudo apt-get upgrade

sudo apt-get install git

Search for Bitcoin github and click the first link as seen below :

Goto the link as seen below at https://github.com/bitcoin/bitcoin/blob/master/doc/build-unix.md

sudo git clone https://github.com/bitcoin/bitcoin.git

sudo apt-get install build-essential libtool autotools-dev automake pkg-config libssl-dev libevent-dev bsdmainutils python3

 

sudo apt-get install libboost-system-dev libboost-filesystem-dev libboost-chrono-dev libboost-program-options-dev libboost-test-dev libboost-thread-dev

 

sudo apt-get install libboost-all-dev

sudo apt-get install software-properties-common

sudo add-apt-repository ppa:bitcoin/bitcoin

sudo apt-get update

sudo apt-get install libdb4.8-dev libdb4.8++-dev

sudo apt-get install libminiupnpc-dev

 

sudo apt-get install libzmq3-dev

sudo apt-get install libqt5gui5 libqt5core5a libqt5dbus5 qttools5-dev qttools5-dev-tools libprotobuf-dev protobuf-compiler

sudo apt-get install libqrencode-dev

sudo ./autogen.sh

sudo ./configure --disable-wallet #

sudo make

and the last command

sudo make install

....and you r ready to go.....

segmentation fault Kali Linux 2.0 [solved]

Kali Linux 2.0,the well known Penetration testing distro contains a plethora for digital forensics tools and is widely used by ethical hacker community across the globe.It comes with over 650 tools pre-installed that help  perform tasks like network analysis, ethical hacking, load & crash testing etc. It is powered by Linux kernel 4.0 and has enhanced support for different graphics cards and desktop environments.However ,a small bug as I noticed running two regular commands as apt-get update and msfupdate. Used to get the segmentation fault error as seen below in the screen shot :

Resolved by running the following commands at terminal to open sources.list  file

root@kali:~# leafpad /etc/apt/sources.list

As the file opens, simply select all the existing content in the file and delete it.Further to it cut and paste the following lines in the file and save :  

# Regular repositories

deb http://http.kali.org/kali sana main non-free contrib

deb http://security.kali.org/kali-security sana/updates main contrib non-free

# Source repositories

deb-src http://http.kali.org/kali sana main non-free contrib

deb-src http://security.kali.org/kali-security sana/updates main contrib non-free

and now it should work just as it worked in my case as seen below :

Kali Linux 1.0.8 - New Release Supports UEFI Boot

1.    The long awaited Kali Linux USB UEFI boot support feature has been added to newly released Kali Linux 1.0.8 release. This new feature simplifies getting Kali installed and running on more recent hardware which requires EFI as well as various Apple Macbooks Air and Retina models.

2.   If you already have Kali installed on your system, need not to download the new setup since it can easily be upgrade to the latest version of the Kali Linux using the following commands:

    root@kali:~# apt-get update
    root@kali:~# apt-get dist-upgrade

3.   Btw..this is my 500th post on this blog!!!hurrah!!!

KALI LINUX : UPDATING IN 3 TERMINAL COMMANDS

1.   No big deal for these three terminal commands which actually can suffice for updating any package.As Kali packages are constantly updated between releases, a newer set of tools are available than what were originally downloaded on your DVD ROM or came with any old iso image.

2.  So these go like this :

- Update the local package index with the latest changes made in the repositories:

apt-get update

- Upgrade the existing packages:

apt-get upgrade

- Upgrade to the latest version (if available):

apt-get dist-upgrade

3.  That's it.....do it as Root or add sudo su before u start

UPDATING METASPLOIT ON BACKTRACK3 : SOLVED

1.   Backtrack 5 comes with pre-installed  metasploit framework v4.0 but now Metasploit Community comes with updated  Web Ui version and others functionalities and even more exploits.To exploit the new features and functionalities it is important to upgrade the existing Metasploit version to its current stable version.But unlike in past it is not simply a matter of doing msfupdate in the msfconsole.Here I bring you few simple steps with screen shots to enable you to upgrade your version of Metasploit.

Firstly download the current available version ie Metasploit framework v4.5 which can be downloaded from Metasploit Framework site here

 

or click at  http://www.metasploit.com/download/

 

Secondly Installing Metasploit Community over the existing metasploit framework installation won't work for various reasons so the best way to start is by uninstalling the earlier version of Metasploit Framework first and this basically comes to the following terminal commands.

# cd /opt/metasploit/

# ls

# ./uninstall

 

Thirdly ,Make installer executable...so when you have downloaded the file with name "metasploit-latest-linux-installer.run", open new terminal window and enter the following commands.

# chmod u+x /root/metasploit-latest-linux-installer.run

Fourthly, Run Installer

# ./metasploit-latest-linux-installer.run

This will now be explained further till installation vide screen shots as below :

At the end of the installer, the metasploit web UI will open in your browser (https://localhost:3790/) and you follow the steps to register and choose the metasploit community edition for free....thats it!!!

[SOLVED] : result code ns error failure virtualbox

1. If you ever get this message "result code ns error failure virtualbox" while you use virtual box...don't you worry...simple steps will resolve as follows:.

The screens you see are shown below first just to ensure that your and mine problem is same :

2.    So first thing is your remove Virtual box from the Ubuntu Software Centre or you can remove the same manually from terminally as root with the following commands :

sudo apt-get remove virtualbox-\*

sudo apt-get purge virtualbox-\*

init 6

sudo sh -c "echo 'deb http://download.virtualbox.org/virtualbox/debian '$(lsb_release -cs)' contrib non-free' > /etc/apt/sources.list.d/virtualbox.list" && wget -q http://download.virtualbox.org/virtualbox/debian/oracle_vbox.asc -O- | sudo apt-key add - && sudo apt-get update && sudo apt-get install virtualbox-4.3 dkms

3.     These 4 commands from the terminal should get you through!!! all d best

Upgrading Backtrack R2 to R3 : Distribution Upgrade

Single line terminal command from the BT Terminal to upgrade your Backtrack Dist is

apt-get update && apt-get dist-upgrade