Archive for the 'General' Category


Motion Charging Batteries

Lot of people carry around battery powered electronics such as laptops, camera’s and cellphones. One problem with all of these is that you need to constantly be charging them or replacing the batteries. Another interesting characteristic of all of these items are that they move around a lot. For example a cellphone moves and shakes […]

Picture Organizing

When I finally have a need and I am looking for a tool/system to accomplish that task, I tend to be extremely picky and very demanding of certain features. This happened when I finally made up my mind to consolidate all my photo’s in to one central system and organize them. Pictures started coming out […]

The Work Stack

Ok I need a break from my finals studying. Just 5 minutes. Here is my to do list of things.

Study for Finals - Just two more days
Cisco Systems Internship - Again this summer, need to pack up and go
Canon SD1000 - Play with the chdk firmware.
WRT350N Bricked - Poor 802.11n router, need to bring it […]

Port Multiplexer

The other day I was trying to figure out how much I can do with accessing only one port without tripping IDS before that machine. Hiding a service or two services in one port. Lets take an example, it would make more sense.
You have a server with only port 80 open. How can I […]

Standup/Lock

As a habit now, every time I stand up from the computer, I press the hotkey to lock the computer (yes, even when I am the only one around at home). It hit me, why not automate this. A sensor you can have on the chair that would lock the machine when it detects you […]

Cleanup Time

Looks like it’s time for me do a total cleanup of my things, both virtual and in the physical world.

Room Cleanup (load of empty boxes, anyone want any?)
Door-Desk, two of them for the room
New Book shelves, having a space issue now
3TB worth of data to be organized, and the countless number of cd and dvd […]

Weakness in Captcha

Captcha is a system widely used in web forms to differentiate between humans and bots. I won’t go into detail how it works but you can read it on Wikipedia. Many people try to defeat this system by writing very advanced character recognition software but there seems to be a very large hole in this […]

WRT350N External Serial

I got my hands on a bricked WRT350N router was trying different magic trying to flash a new firmware and get it working. I was trying to connect it to a serial console when I realized that on the WAN port in the back, on the opposite side of the RJ-45 jack there were 4 […]

Calendar Syncronization Winner

I did not put the effort before to keep a calendar of any sort on the computer before since it was a pain to get it to synchronize between the desktop computer, laptop, and if I am not near those two the calendar is unavailable… until I found a killer combination.

Thunderbird + Lightning + Provider […]

UPS Social Engineering

I recently ordered something and had it ship through UPS. Once it had already shipped, I decided I want it shipped directly to my College Station address instead of my Houston address. I was not sure if this was possible, oo I was getting ready to go to the UPS store, show some ID and […]

Multi-Factor Authentication on the Cheap

Large enterprises, banks and other places requiring very high security log on systems use multi-factor authentication. Multi-factor authentication is using multiple means of verifying if the person trying to log in to the system is the real person and not someone stealing credentials. For example a conventional single-factor authentication is simply entering the user name […]

D975XBX2 SATA Controller and Linux

After struggling with the Intel Bad Axe 2 (D975XBX2) motherboard to get the secondary Marvell SATA controller to work with Fedore Core 7 Linux, I finally got it working. The motherboard has two on board SATA controllers, each with 4 ports, totalling 8 SATA ports. The parimary SATA controller is from Intel and it was […]

ThinkPad Beep

If you are IBM Thinkpad user (T60, probably other models too) you know all too well how annoying the system beep can be, specially when you are on headphones (the beep always comes at the highest volume totally stealing my concentration). Usually comes when you press multiple keys at time, but once in a while […]

Know who you are Scamming

Well not really scamming, but if you are trying to sell something and make a quick buck because you got it through a special promotion, make sure the people you advertise it doesn’t know about the promotion.

Hey interns,

I’m selling a brand new iPod nano silver 4gb for $160 and a brand new Macbook Pro 2.2Ghz […]

Free Premium Channels

Ever thought that it would be great to get some of those premium cable TV channels for free? For example HBO or Starz. You must be thinking this is going to involve using a legal-shady box or some type of hack, but most of the time just asking works. Well asking in a not so […]

Cisco Internship

I am currently interning with Cisco Systems in San Jose. Just the break I had been hoping from academia as I was this close to snapping. Perfect weather and interesting work with awesome benefits, I don’t think I can ask for any more from a internship this perfect.

The specific group I am working in […]

Command Line SMS Fun

Almost all cellphones and carriers support SMS’s now, and bundles of hundreds or unlimited plans are really cheap. One spiffy feature that most major carriers provide is email to SMS relaying. Below are some of the major carriers relaying addresses.

Alltel
1234567890@message.alltel.com

AT&T Wireless / Cingular
1234567890@mmode.com

Boost Mobile
1234567890@myboostmobile.com

Cingular
1234567890@mobile.mycingular.com
1234567890@cingularme.com

Nextel
1234567890@messaging.nextel.com

Sprint PCS
1234567890@messaging.sprintpcs.com

T-Mobile
1234567890@tmomail.net

Verizon
1234567890@vtext.com

Virgin
1234567890@vmobl.com

So if you want to send a SMS, send a […]

Tea Coffee Mix

It was late at night and I was trying to decide if I should make Tea or Coffee as my caffeine fix. It was a long night of coding, and lot of fuzzy logic was involved. The first thing that popped in to my mind was something in between.

Then I wondered why I had […]

Improve on Microwave Ovens

I wondered a few days ago why I need to press a few buttons to set the time and start the microwave oven every time I put something in it. If I put something in the microwave, majority of the time it’s to either cook it or to defrost it. Instead I would much prefer […]

RIP A7M266-D

Rest In Peace A7M266-D (March 2003 - March 2007). No… it’s not a person, but it’s my motherboard that served me well for 4 straight years in my main server along with two Athlon 2000 MPs. When I say straight years, I mean it was chugging numbers, rendering random stuff or juggling files non stop […]