I.T. Security and Linux Administration:

February, 2013

1

February 28, 2013  8:03 PM

Advise From the Admin Part 4: Use monitoring software



Posted by: Eric Hansen
security

Want to make sure your server is up?  Dying to know why the load is 5+ on a 2-core VPS?  Using monitoring software. Yes, it generates overhead.  Yes, it is a pain to install and configure sometimes.  However, when you want to know why something is breaking or how something is happening, it...

February 28, 2013  8:01 PM

Advise From the Admin Part 3: Make variables easy to find



Posted by: Eric Hansen
security

Software like Shorewall is awesome.  It makes managing software firewall easier than eating pie without a fork.  However, it has one issue: global variables. A good example of this happened to a friend not too long ago.  In the config files existed some variables (we'll call them SOME_NET and...


February 28, 2013  7:56 PM

Advise From the Admin Part 2: Make configuration easy



Posted by: Eric Hansen
security

When creating configuration files for software you're writing, do not make it so difficult for the end user to edit them. Naming a variable "window_x_pos" or "fullscreen" is easy to understand and know what it does.  Naming a variable "deep_dark_interesting_option1041239" is like taking a sword...


February 28, 2013  7:51 PM

Advise From the Admin Part 1: Don’t try to do tricky things



Posted by: Eric Hansen
security

This will probably be short, but should still be addressed.  When you are configuring systems, don't make the implementation convoluted.  It won't fair well for you in the future when you have to troubleshoot. Scenario When I had to reconfigure my servers due to data loss,...


February 28, 2013  7:47 PM

Mobile Payment: Part 3 – Chirpify



Posted by: Eric Hansen
security

Swipe, founded by one of the founders of Twitter, I feel missed the bullet on one important service: Twitter.  Twitter is meant for microblogging, and socializing.  What better way to get the word out about a product than by social media, right?  That's where Chirpify comes in. Chirpify is a...


February 28, 2013  7:38 PM

Mobile Payment: Part 2 – Swipe (and other payment processors)



Posted by: Eric Hansen
security

I'm sure you've heard of Swipe before.  A device you plug into your headphone jack to swipe cards and make payments.  It's pretty flexible and intuitive, and is created by one of the founders of Twitter, even.  They're also one of the most cost effective producers as well (they give their device...


February 28, 2013  7:33 PM

Mobile Payment: Part 1 – Why?



Posted by: Eric Hansen
security

Smartphones are a growing essence in the world of everyday use now.  Almost everywhere you look you see someone with a smartphone and they're Facebooking, Tweeting, etc... on it.  Heck, the only person in my age group (mid 20's) I know of that doesn't have one is my fiance.  Though, she does...


February 28, 2013  7:22 PM

Hacking the EU



Posted by: Eric Hansen
security

http://www.v3.co.uk/v3-uk/news/2251393/miniduke-spying-malware-found-on-eu-government-networks While stories like these tend to get old to me, this one is an exception, because it shows that a dog's old tricks can still prove to be worth points. Now, there's two people at fault here, in my...


February 28, 2013  6:54 PM

China vs. USA – Hacking (part 2: outbound traffic)



Posted by: Eric Hansen
security

In a previous article, I wrote about how China is playing the wolf, and its not pretty.  Going over the inbound traffic to their "great firewall", I outlined some fine points...and now, we will address outbound traffic.  This is something I also touched on in the previous...


February 28, 2013  6:47 PM

China vs. USA – Hacking (part 1: inbound traffic)



Posted by: Eric Hansen
security

Hacking in America has really gained a lot of attention this year already. February alone seems to be the month of hacking. There was an interesting article posted on Yahoo today though (http://finance.yahoo.com/news/china-says-u-routinely-hacks-130252420.html), basically saying that China is...


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