Saturday, July 25, 2009

Photo metadata

# get exiftool
sudo apt-get install libimage-exiftool-perl

# get libexif CLI tool
sudo apt-get install exif

# erase all metadata
exiftool -all='' img.jpg

# see what metadata tags your photo has
exif -l img.jpg

# see the values of the included metadata tags
exif img.jpg

EXIF specifications:
For PNGs:

Thursday, July 23, 2009

And now, a demonstration in how ridiculously easy it is to hack stuff with Google

Inspired by this reddit thread (look here for help deciphering the Google syntax).

phpMyAdmin -- inurl:SELECT inurl:FROM inurl:WHERE intitle:phpmyadmin

HP Laserjet printers -- "identify the document you want to print by using either option shown below, then select the apply button."

More printers
-- "Web Image Monitor" location comment "device name"

Web cams
-- inurl:"viewerframe mode="

And, let's not forget the Google Hacking Database or how to use Google to crack MD5-hashed passwords!

Sunday, July 12, 2009

batch: like at, but better

batch is a tool that is identical to at (same manpage even), except it runs a specified job when the load averages are low instead of at a certain time. Very handy if one needs a job to execute on a busy server and doesn't care when it happens, just that it happens.