Installing Latest LibreOffice in Debian stable

To get the latest version of libreoffice, do the following:

sudo su
echo 'deb http://ftp.debian.org/debian/ wheezy-backports main contrib non-free' >> /etc/apt/sources.list
echo 'deb-src http://ftp.debian.org/debian/ wheezy-backports main contrib non-free' >> /etc/apt/sources.list

apt-get update && apt-get -t wheezy-backports install libreoffice

Installing Skype On Debian (64bit)

There is no 64bit version, so we need to install the 32bit version.

sudo dpkg --add-architecture i386
sudo apt-get update


wget -O /tmp/skype.deb http://www.skype.com/go/getskype-linux-deb
sudo dpkg -i /tmp/skype.deb
sudo apt-get install -f

That's it! 

Retrieving historical financial data with python

Requirements

• ystockquote 
• pandas

Here is the sample python code, which will retrieve historical data from yahoo on any financial instrument (e.g. Google).

Displaying hashed passwords in Linux (Debian, Ubuntu etc.)

Simply run

sudo cat /etc/shadow

How to hash and crack UNIX passwords in python

Crypt module

I am using the crypt module here, which is a one-way hash function based upon a modified DES algorithm. You can easily adjust the script to crack secure hash algorithms (SHA1, SHA224, SHA256, SHA384, and SHA512 (defined in FIPS 180-2) as well as RSA’s MD5 algorithm ) by using the hashlib  module.

Crypt Overview

import crypt
crypt.crypt("user", "AD")

'AD5Qg2vQhsLRw'

AD is the salt, which is a random two-character string which will be used to perturb the DES algorithm in one of 4096 ways.

The python password cracking script

import crypt
def testPass(hashpass):
    salt = hashpass[0:2]
    dictionary = open('dictionary.txt', 'r') #this is our dictionary file
    for word in dictionary.readlines():
        word = word.strip('\n')
        crypto = crypt.crypt(word,salt)
        if crypto == hashpass:
            print "[+] Password: "+word+"\n"
            return
    print "[-] Password Not Found.\n"
    return

def main():
    hashpass = open('passwords.txt', 'r') #file with hashed password
    for line in hashpass.readlines():
        if ":" in line:
            user = line.split(':')[0]
            hashpass = line.split(':')[1].strip(' ')
            print "[*] Cracking Password For: "+user
            testPass(hashpass)
if __name__ == "__main__":
    main() 

Save the script as cracker.py.
You also need to create a dictionary.txt and password.txt  (with the hashed passwords) file to successfully run the program.

Create a new folder and put the three files into it, afterwards simply run 

python cracker.py

You can download all of the files here: Drive

Installing Metasploit on Debian (or Ubuntu)

sudo su  

apt-get -y install build-essential zlib1g zlib1g-dev libxml2 libxml2-dev libxslt-dev locate libreadline6-dev libcurl4-openssl-dev git-core libssl-dev libyaml-dev openssl autoconf libtool ncurses-dev bison curl wget postgresql postgresql-contrib libpq-dev libapr1 libaprutil1 libsvn1 libpcap-dev  

apt-get install git-core postgresql curl ruby1.9.3 nmap gem  
gem install wirble sqlite3 bundler  

cd /opt  
git clone https://github.com/rapid7/metasploit-framework.git  

cd metasploit-framework  
bundle install  

./msfconsole  

msfconsole tutorial: click