Tag Archives: tips

Published:
February 2, 2010 – 8:03 pm
Author:
By Dave

Essential FourSquare Anti-Stalking Security Tips 2

Currently I am in the Computer Science Master’s Program at West Chester University and I am focusing my research on Location Based Updates in Social Media and their societal and security implications. So you can say I think about this topic more than most normal people do.

FourSquare is a growing service that allows you to “Check in” to restaurants, grocery stores, museums and just about any place you can imagine. However, I have seen several of my friends checking in to locations which, I must say as a security research student, set off warning bells. Although I am calling out FourSquare specifically, these also apply to just about any other location based software where you broadcast your location to other folks, whether they are your friends or the general public. GoWalla and BrightKite are in the same boat.

Without further ado… here is my list of top FourSquare Security Faux Pas (after the break…)

Categories: Social Media, Tech

Tagged: , , , ,

Published:
January 31, 2010 – 9:53 pm
Author:
By Dave

Linux Command Line, Generating a Random File 2

It is very easy to create a random file using the linux command line. Much like the command to fill a file with all zeros, for example a 1 Meg file:
dd if=/dev/zero of=zero.filename bs=1024 count=1000
You do the same using /dev/urandom:
dd if=/dev/urandom of=random.filename bs=1024 count=1000
Resulting in a 1MB file:
1000+0 records in
1000+0 records out
1024000 bytes (1.0 MB) [...]

Categories: Code Samples, Linux, Security, Shell

Tagged: , ,

Published:
October 29, 2009 – 5:03 pm
Author:
By Dave

Find Your Oldest Messages in Gmail 5

At some point in the past, Google removed the Oldest » link out of everything except for your inbox and labels. This makes it hard to find the “first” or an early email of any sort if you have a lot in your search result. I wanted to find an email of which I had [...]

Categories: Google, Tech

Tagged: , , ,

Published:
September 29, 2009 – 5:00 pm
Author:
By Dave

Copy Files to Many USB Drives Quickly and Easily 1

I was recently tasked with copying speaker’s presentations, files and handouts onto 100s of USB Drives (key drives) for a conference that work is hosting down in Washington, D.C. My first thought was that it was going to be a pain to have to copy/paste the files to each drive. I thought about creating a [...]

Categories: Hardware, Other Code, Programs

Tagged: , , , , ,

Published:
May 6, 2009 – 11:10 pm
Author:
By Dave

Easy Search and Replace in Multiple Files on Linux Command Line 8

I recently came across a typo that existed in a bunch of html files on my web server. I thought it should be easy enough to change, but since it was in a number of files, editing it by hand would be time consuming. Fortunately, there is an easy, one liner command to replace the [...]

Categories: CentOS, Other Code, Shell, System Administration, Ubuntu

Tagged: , ,