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Thursday, 7 October 2010

Kismet: HOW TO

Kismet is one of the ultra modern wireless sniffers. It can and should be used in together with others such as aircrack-ng, airodump, airdecap, airreplay and others. I view these applications as complementary rather than competing. Windows users have netstumbler which in my view may not exactly match up with the above tools especially if they are all used together. Kismet works on any NIC (at least I think) that supports raw monitoring (rfmon). It should not have any problems with IEEE 802.11a, b, g ,n traffic.

On Linux Ubuntu, you have to install kismet using the normal ways i.e
sudo apt-get install kismet
sudo aptitude install kismet

Then comes the configuration which may be simple for others and a hair pulling experience for others. Mine was a mixture of both; After installing kismet, You will have to make configurations to the kismet.conf file which if you installed using the sudo apt-get install kismet method, should be somehere here; /etc/kismet/kismet.conf.

A good idea is to first backup that file (perhaps in the same directory).
cp -v /etc/kismet/kismet.conf /etc/kismet/kismet.conf.backup OR
cp -v /etc/kismet/kismet.conf /etc/kismet/kismet.conf~

That's incase you screw things up in that file.

Then there are primarily two things that you have to change; i.e.
#suiduser=your_user_here

Uncomment that line and enter your username where the "your_user_here" section is. If you are unsure of your username (yea, it happens), on shell type shell$ whoami and the shell will tell you who you are!

Now that you are through with the first part of configuring kismet, the second and somewhat disturbing section is next.

The second section mainly deals with how to configure the source/ interface that kismet will use for monitoring the wireless signals.

Next search for this section

# YOU MUST CHANGE THIS TO BE THE SOURCE YOU WANT TO USE
source=none,none,addme
The first none is the driver that is used by your wireless card hardware. If you are not sure, you can use this command to determine it, sudo lshw -C network. This is an example output of the above command;

marcusOfGearsOfWar@gears:~$ sudo lshw -C network
  *-network               
       description: Wireless interface
       product: AR9285 Wireless Network Adapter (PCI-Express)
       vendor: Atheros Communications Inc.
       physical id: 0
       bus info: pci@0000:03:00.0
       logical name: wlan0
       version: 01
       serial: 1c:4b:d6:55:da:5f
       width: 64 bits
       clock: 33MHz
       capabilities: pm msi pciexpress bus_master cap_list logical wireless
       configuration: broadcast=yes driver=ath9k latency=0 multicast=yes promiscuous=yes wireless=IEEE 802.11bgn
       resources: irq:17 memory:feaf0000-feafffff

The important section in this verbose output is the driver section (in bold) i.e driver=ath9k

The output above is from an Atheros AR9285 Wireless NIC. It clearly displays the driver as ath9k.  However this is interesting because kismet does not like that particular driver. It prefers ath5k. ath9k uses the same capture code as ath5k (I think, just wondering why it shouldn't be used).

Anyhow, if your driver is ath9k, it won't work with kismet (as of now 2010-10-07) unless you pull something incredible off. You should instead use ath5k (that is only if your driver is ath9k) but any other driver as reported by lshw -C network command should work without any hiccups.

Then the second none in source=none,none,addme is the name that your OS uses for the wireless card.
Trying iwconfig should return your wireless card's nickname eg. wlan0

Then the third parameter addme is used for logging purposes. So any name can do.

I installed kismet from ubuntu software repository. Using this method of installation makes kismet love user "root". It will hate anyone else who is not root.

So to fire up kismet, type, sudo kismet and you are "good to go-go" (Spyro Gyra) It will start reporting which wireless networks are available.

Remember, you can get the help menu by typing 'h'. However you can get to the help menu only if you first get rid of the welcome message. If kismet displays a welcome message, you can get rid of that message by pressing the space bar (Just once can do).

ONE IMPORTANT NOTE IS THAT YOU WIRELESS CARD WILL IMMEDIATELY ENTER MONITORING MODE AND WILL DISSOCIATE FROM ANY APs IT HAD EARLIER ASSOCIATED WITH.
So you cannot connect to a wireless network when your card is in monitoring mode.

One small nuance is that after you quit kismet (using the Capital Q), kismet's dumb enough to leave your wireless NIC in monitoring mode (not the clean managed mode it was in before you fired kismet up).

However, don't despair. Restarting your machine is one option. But another quick option is using doing this;

sudo ifconfig wlan0 down
sudo iwconfig wlan0 mode managed
sudo ifconfig wlan0 up

That should sort things out.

If you are interested in listening from the horse's mouth, just go direct to the source

Have a nice day!!!!!

Tuesday, 28 September 2010

Stay Hungry Stay Foolish

'You've got to find what you love,' Jobs says
This is the text of the Commencement address by Steve Jobs, CEO of Apple Computer and of Pixar Animation Studios, delivered on June 12, 2005.

I am honored to be with you today at your commencement from one of the finest universities in the world. I never graduated from college. Truth be told, this is the closest I've ever gotten to a college graduation. Today I want to tell you three stories from my life. That's it. No big deal. Just three stories.

The first story is about connecting the dots.

I dropped out of Reed College after the first 6 months, but then stayed around as a drop-in for another 18 months or so before I really quit. So why did I drop out?

It started before I was born. My biological mother was a young, unwed college graduate student, and she decided to put me up for adoption. She felt very strongly that I should be adopted by college graduates, so everything was all set for me to be adopted at birth by a lawyer and his wife. Except that when I popped out they decided at the last minute that they really wanted a girl. So my parents, who were on a waiting list, got a call in the middle of the night asking: "We have an unexpected baby boy; do you want him?" They said: "Of course." My biological mother later found out that my mother had never graduated from college and that my father had never graduated from high school. She refused to sign the final adoption papers. She only relented a few months later when my parents promised that I would someday go to college.

And 17 years later I did go to college. But I naively chose a college that was almost as expensive as Stanford, and all of my working-class parents' savings were being spent on my college tuition. After six months, I couldn't see the value in it. I had no idea what I wanted to do with my life and no idea how college was going to help me figure it out. And here I was spending all of the money my parents had saved their entire life. So I decided to drop out and trust that it would all work out OK. It was pretty scary at the time, but looking back it was one of the best decisions I ever made. The minute I dropped out I could stop taking the required classes that didn't interest me, and begin dropping in on the ones that looked interesting.

It wasn't all romantic. I didn't have a dorm room, so I slept on the floor in friends' rooms, I returned coke bottles for the 5¢ deposits to buy food with, and I would walk the 7 miles across town every Sunday night to get one good meal a week at the Hare Krishna temple. I loved it. And much of what I stumbled into by following my curiosity and intuition turned out to be priceless later on. Let me give you one example:

Reed College at that time offered perhaps the best calligraphy instruction in the country. Throughout the campus every poster, every label on every drawer, was beautifully hand calligraphed. Because I had dropped out and didn't have to take the normal classes, I decided to take a calligraphy class to learn how to do this. I learned about serif and san serif typefaces, about varying the amount of space between different letter combinations, about what makes great typography great. It was beautiful, historical, artistically subtle in a way that science can't capture, and I found it fascinating.

None of this had even a hope of any practical application in my life. But ten years later, when we were designing the first Macintosh computer, it all came back to me. And we designed it all into the Mac. It was the first computer with beautiful typography. If I had never dropped in on that single course in college, the Mac would have never had multiple typefaces or proportionally spaced fonts. And since Windows just copied the Mac, its likely that no personal computer would have them. If I had never dropped out, I would have never dropped in on this calligraphy class, and personal computers might not have the wonderful typography that they do. Of course it was impossible to connect the dots looking
forward when I was in college. But it was very, very clear looking backwards ten years later.

Again, you can't connect the dots looking forward; you can only connect them looking backwards. So you have to trust that the dots will somehow connect in your future. You have to trust in something — your gut, destiny, life, karma, whatever. This approach has never let me down, and it has made all the difference in my life.

My second story is about love and loss.

I was lucky — I found what I loved to do early in life. Woz and I started Apple in my parents garage when I was 20. We worked hard, and in 10 years Apple had grown from just the two of us in a garage into a $2 billion company with over 4000 employees. We had just released our finest creation — the Macintosh — a year earlier, and I had just turned 30. And then I got fired. How can you get fired from a company you started? Well, as Apple grew we hired someone who I thought was very talented to run the company with me, and for the first year or so things went well. But then our visions of the future began to diverge and eventually we had a falling out. When we did, our Board of Directors sided with
him. So at 30 I was out. And very publicly out. What had been the focus of my entire adult life was gone, and it was devastating.

I really didn't know what to do for a few months. I felt that I had let the previous generation of entrepreneurs down - that I had dropped the baton as it was being passed to me. I met with David Packard and Bob Noyce and tried to apologize for screwing up so badly. I was a very public failure, and I even thought about  running away from the valley. But something slowly began to dawn on me —
I still loved what I did. The turn of events at Apple had not changed that one bit. I had been rejected, but I was still in love. And so I decided to start over. I didn't see it then, but it turned out that getting fired from Apple was the best thing that could have ever happened to me. The heaviness of being successful was replaced by the lightness of being a beginner again, less sure about everything. It freed me to enter one of the most creative periods of my life.

During the next five years, I started a company named NeXT, another company named Pixar, and fell
in love with an amazing woman who would become my wife. Pixar went on to create the worlds first
computer animated feature film, Toy Story, and is now the most successful animation studio in the
world. In a remarkable turn of events, Apple bought NeXT, I returned to Apple, and the technology we
developed at NeXT is at the heart of Apple's current renaissance. And Laurene and I have a wonderful
family together.
I'm pretty sure none of this would have happened if I hadn't been fired from Apple. It was awful tasting
medicine, but I guess the patient needed it. Sometimes life hits you in the head with a brick. Don't lose
faith. I'm convinced that the only thing that kept me going was that I loved what I did. You've got to
find what you love. And that is as true for your work as it is for your lovers. Your work is going to fill a
large part of your life, and the only way to be truly satisfied is to do what you believe is great work.
And the only way to do great work is to love what you do. If you haven't found it yet, keep looking.
Don't settle. As with all matters of the heart, you'll know when you find it. And, like any great
relationship, it just gets better and better as the years roll on. So keep looking until you find it. Don't
settle.
My third story is about death.
When I was 17, I read a quote that went something like: "If you live each day as if it was your last,
someday you'll most certainly be right." It made an impression on me, and since then, for the past 33
years, I have looked in the mirror every morning and asked myself: "If today were the last day of my
life, would I want to do what I am about to do today?" And whenever the answer has been "No" for too
many days in a row, I know I need to change something.
Remembering that I'll be dead soon is the most important tool I've ever encountered to help me make
the big choices in life. Because almost everything — all external expectations, all pride, all fear of
embarrassment or failure - these things just fall away in the face of death, leaving only what is truly
important. Remembering that you are going to die is the best way I know to avoid the trap of thinking
you have something to lose. You are already naked. There is no reason not to follow your heart.
About a year ago I was diagnosed with cancer. I had a scan at 7:30 in the morning, and it clearly
showed a tumor on my pancreas. I didn't even know what a pancreas was. The doctors told me this was
almost certainly a type of cancer that is incurable, and that I should expect to live no longer than three
to six months. My doctor advised me to go home and get my affairs in order, which is doctor's code for
prepare to die. It means to try to tell your kids everything you thought you'd have the next 10 years to
tell them in just a few months. It means to make sure everything is buttoned up so that it will be as easy
as possible for your family. It means to say your goodbyes.
I lived with that diagnosis all day. Later that evening I had a biopsy, where they stuck an endoscope
down my throat, through my stomach and into my intestines, put a needle into my pancreas and got a
few cells from the tumor. I was sedated, but my wife, who was there, told me that when they viewed
the cells under a microscope the doctors started crying because it turned out to be a very rare form of
pancreatic cancer that is curable with surgery. I had the surgery and I'm fine now.
This was the closest I've been to facing death, and I hope its the closest I get for a few more decades.
Having lived through it, I can now say this to you with a bit more certainty than when death was a
useful but purely intellectual concept:
No one wants to die. Even people who want to go to heaven don't want to die to get there. And yet
death is the destination we all share. No one has ever escaped it. And that is as it should be, because
Death is very likely the single best invention of Life. It is Life's change agent. It clears out the old to
make way for the new. Right now the new is you, but someday not too long from now, you will
gradually become the old and be cleared away. Sorry to be so dramatic, but it is quite true.
Your time is limited, so don't waste it living someone else's life. Don't be trapped by dogma — which is
living with the results of other people's thinking. Don't let the noise of others' opinions drown out your
own inner voice. And most important, have the courage to follow your heart and intuition. They
somehow already know what you truly want to become. Everything else is secondary.
When I was young, there was an amazing publication called The Whole Earth Catalog, which was one
of the bibles of my generation. It was created by a fellow named Stewart Brand not far from here in
Menlo Park, and he brought it to life with his poetic touch. This was in the late 1960's, before personal
computers and desktop publishing, so it was all made with typewriters, scissors, and polaroid cameras.
It was sort of like Google in paperback form, 35 years before Google came along: it was idealistic, and
overflowing with neat tools and great notions.
Stewart and his team put out several issues of The Whole Earth Catalog, and then when it had run its
course, they put out a final issue. It was the mid-1970s, and I was your age. On the back cover of their
final issue was a photograph of an early morning country road, the kind you might find yourself
hitchhiking on if you were so adventurous. Beneath it were the words: "Stay Hungry. Stay Foolish." It
was their farewell message as they signed off. Stay Hungry. Stay Foolish. And I have always wished
that for myself. And now, as you graduate to begin anew, I wish that for you.
Stay Hungry. Stay Foolish.
Thank you all very much.
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