Simulation Data Security and Anti Money Laundering Game

PlayGenSeriousGame  has learning games that dive into the data security underground.
The games are engaging, realistic simulations for training, learning and assessment using current gaming technology.
Enjoy!

Electronic Light Puzzle Game

A nice thinking game!  My lowest score 57.  Confuse Electronic Light Puzzle Game

Linux Network Code: Big Endian and Little Endian Snack

The TCP/IP protocol is "Big Endian"processing. How does a "little endian" processor read the packets sent from "Big Endian"?

Little Endian reads CPU register value (backwards or bottom-to-top)

Big Endian reads CPU register value (forwards or top-to-botom)

This means Byte Order "functions" are needed to switch (convert) between big endian and little endian.

Linux, BSD and Solaris use the following functions:

hton = host-to-network
ntoh = network-to-host

s = short = 16 bit integer
l = long = 32 bit integer
ll= double = 64 bit integer

Function Code Sample:

htons()
htonl()
htonll()

ntohs()
ntohl()
ntohll()


This means if the routing processor is "Big endian" and the sending or receiving processing code is "Little Endian" The above byte order "functions" are required to switch (convert) between Big Endian and Little Endian. If no Byte Order "Function" is present then it will arrive as unreadable garbage to the processor.


Hope you enjoyed this Linux Network Code snack!

Security network weapon of mass instruction

Icons.apnic.net has current and legacy IPv6 information links. What makes the site special? The current updates and contributions from networking specialist are valid with substance.

For example the following link was from Icons.apnic.net.
The U.S. DEPARTMENT OF DEFENSE High Performance Computing Modernization Program
Information Assurance Awareness Course  

This course was so nicely done, I decided to give a visual summary video of less than 60 seconds.

Enjoy!

Free IPv6 animated explaination

A Side note from my study diary:

What is IPv6?- Animated Explanations

http://www.animatedexplanations.com/Animation.aspx?animation=14

Enjoy!     

Linux Attributes:Undesirable Access Security Snack

Why did I choose the handle "lsattr_nix"?

The "lsattr" command displays the attributes of Linux files EXT2.

Linux files that have the flag set for "Immutable" can not be modified or deleted, even by "root" unless the flag is removed.

The immutable attribute can be identified using "lsattr".

If "i" is the out put for the attribute listing of a file it is unchangeable or immutable. See the picture above for an example.

Enjoy!

Network Outage Element Watch

Looking at some of my study notes reminded me today, that not all network outages are man made. Elemental power is sometimes at work.

Air:
High Density winds and tornados 
http://www.goes.noaa.gov/WINDS/index.html


Earth:
Earth quake Seismic Monitor 
http://www.iris.edu/seismon/

Fire: 
Fire warnings 
http://www.spc.noaa.gov/products/fire_wx/


Water:
Huricanne watch 
http://www.nhc.noaa.gov/  

Tsunami Warning Center 
http://www.prh.noaa.gov/ptwc/

Space:
Meteor showers, solar flares, auroras, and near-Earth asteroids

http://www.spaceweather.com/ and http://ssd.jpl.nasa.gov/


An interesting site is downforeveryoneorjustme.com when having trouble with a url.