Ok, the previous video was kind of out dated, so I posted a new one. Credits to g0tmi1k. This video goes beyond just cracking wpa, it also shows how the different tools perform. This video explains the methodology really simple. Let me say that cracking WPA is not like cracking WEP, in WEP you’re exploiting a vulnerability in the way the encryption algorithm is implemented, but in WPA the only vulnerability will be in the strength of the user passphrase. Yes you’ve guessed it, when cracking WPA basically what you’re doing is brute-forcing the user password, in other words the success of your attack will depend on your dictionary or password list. If the user’s passphrase is not in your dictionary, you will never crack the WPA key. There are several types of WPA dictionary list out there, but I highly recommend using rainbow-tables which can be several Gigs in size. How to find them?… Google is your friend! Read the rest of this entry »
In past versions of ubuntu, I’ve experienced slow connections specially with internet. And it’s been because of IPv6. Now in Ubuntu 10.04, I didn’t noticed any slow connection; however, I decided to go ahead and disable it anyways… just in case. And here are the steps.
Checking whether IPv6 is enabled or not.
jorge@nixboxen:~$ cat cat /proc/sys/net/ipv6/conf/all/disable_ipv6 cat: cat: No such file or directory 1
if output=0 then is enabled. So use your preferred editor and open /etc/sysctl.conf. Then add the following lines.
#disable ipv6 net.ipv6.conf.all.disable_ipv6 = 1 net.ipv6.conf.default.disable_ipv6 = 1 net.ipv6.conf.lo.disable_ipv6 = 1
Sometimes your Windows 7 installation becomes corrupt, and you need a way to recover, you can use the original Windows 7 installation cd. However, it is always good practice to make your own, specially if you are running a 64 bit version of Windows 7, and the installation cd will not work. Here are the steps to create a System Repair Disk.
1- First, click start–>Control Panel–>System and Security
2-Second, Click on Backup and Restore Read the rest of this entry »
Since the release of Ghost Solution Suite 2.5.x, Symantec decided to add support for Linux partition in their ghost clients; however, as far as I know ext4 is not yet supported. As part of the IT job, IT Pros have to rely on some sort of imaging software, and if I can make images of every OS out there with a single application, even better. You can read more info on the support of ghost and Linux partition here. For this tutorial I will go over the steps on how to create a ghost boot disk with Linux support. By the way now the default for a ghost boot disk uses Windows Preinstalled Environment (WinPE).
1- First open the Ghost Boot Wizard, and select default and click next
If you’re like me that test pretty much any os and apps in some sort of virtual environment. In my case I use VMware Workstation, so when I decided to test Backtrack 4 final, I needed to install the vmware Tools, and here I go over the commands needed to install the vmware tools.
1- First go to VM->Install Vmware Tools (the figure shows as Reinstall VMware Tools because I had previously installed it) but yours should say “Install”
If you happen to move to vista or windows 7 like me, you have realized that hyper-terminal is no longer available. Although you could still make hyper-terminal work in windows 7 by copying the executable along with a dll file, I find that is much easier and convenient to use Putty. Putty offers many ways to connect to remote device like SSH, Telnet, and Serial. Here I describe how simple it is to connect to a device like a CISCO Router or switch using Putty.
1- First start by downloading putty from here
2- Second find on the device manager what is your serial connection: COM1 or 2 etc.
I decided to make a guide about TCP/IP configuration in Linux, and you may ask: well, what Linux distribution in specific? I know!, there are hundreds of Linux distribution, but for this guide, I’m only going to cover the two most used Linux distribution: Ubuntu and Fedora. Ubuntu is a Debian derivative, so the Ubuntu portion of TCP/IP configuration applies to any distro based on Debian. And the same goes for Fedora, which is based on RedHat Linux.
First, you want to find out what interfaces you have, and what ip address, “if any,” was assigned to your computer. For this use the “ifconfig” command:
ifconfig #will list all enabled interfaces
if you are looking for a specific interface:
ifconfig eth0 #will only display the configuration for eth0 interface
If you get no interfaces other than the loopback address, it is time to do some troubleshooting and find out whether your network card was detected by Linux or not.
sudo lspci | grep -i ethernet #displaying all your ethernet cards
if you’re troubleshooting a wireless card just change “ethernet” for “wireless.”
other useful command when troubleshooting network card and drivers is “lsmod” Read the rest of this entry »
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