Tech Review: Friday, October 14, 2011

New 6" Kindle for $79

http://www.amazon.com/gp/product/ref=pe_70020_21439970_pe_hero/?ASIN=B0051QVESA

• 800,000 titles for $10
• very small
• Wi-Fi
• E-Ink display
• holds 1,400 Books
• this seems a little small
• read up to one month on the battery
• adjustable text sizes
• email PDF and personal documents to device
• free cloud backup
• borrow from you public library
• buy once, read everywhere
• NO TOUCH!
• lots of difference between Kindles

Secure Android Kernel and 'classified' smart phones

http://gcn.com/articles/2011/10/11/ausa-secure-andriod-kernel-technology.aspx?s=gcndaily_141011

• research team
• Google
• George Mason University
• National Security Agency
• hardened kernel for Android 3.0
• final stages of certification testing
• secure national wireless network for first responders
• looking to replace radio with smart phones
• Connecting Soldiers to Digital Applications (CSDA) program
• Michael McCarthy
• Army's Brigade Modernization Command's Mission Command Complex
• right security accreditation to operate on military networks and classified networks
• hardware accreditation
• software accreditation
• triple-level security
• OS accreditation help from NSA
• Android kernel being tested for Federal Information Processing Standard 140-2 certification
• mid-Oct
• testing complete, just filling out paperwork 
• FBI and Justice planning pilot projects on a larger scale than Army

Android a likely target once mobile crime pays

http://gcn.com/articles/2011/10/11/android-malware-trends-waiting-for-money.aspx?s=gcndaily_121011

• open-source Android operating system
• enabling an increase in malicious applications
• researchers say
• which researchers?
• huge uptick on malicious software targeting devices
• smart phones?
• Android?
• poor return on investment for mobile malware
• keeping the market for this type of crime small
• Vikram Thakur
• security response manager for Symantec
• PDF paper mentioned
• http://www.symantec.com/content/en/us/enterprise/media/security_response/whitepapers/motivations_of_recent_android_malware.pdf?om_ext_cid=biz_socmed_twitter_facebook_marketwire_linkedin_2011Oct__androidmalwarewhitepaper
• Premium Rate Number Billing
• example code
• Spyware
• Search Engine Poisoning
• Pay-per-click
• Pay-per-install
• Adware
• mTAN Stealing
• Transaction Authentication Number (mTAN)
• sent by bank
• Android.Smssniffer
• There should be some ways to safeguard this number
• ok
• near-field communications (NFC)

Google's Dart Web Language

http://gcn.com/articles/2011/10/11/google-dart-web-programming-language.aspx?s=gcndaily_121011

• all-purpose programming language for Web development
• class-based optionally typed
• company blog about
• http://googlecode.blogspot.com/2011/10/dart-language-for-structured-web.html
• design goals
• structured yet flexible
• familiar and natural
• high performance
• main site
• http://www.dartlang.org/
• runs two ways
• browser VM
• Chrome
• JavaScript engine
• resistances from JavaScript enthusiast 
• complex operation without plugins
• in HTML 5

New Style of Attack Can Slip Past Firewalls, Prevention Systems

http://gcn.com/Articles/2011/10/12/AETs-delivered-via-HTTP-traffic.aspx?s=gcndaily_141011&Page=2

• techniques minipulates TCP/IP protocols to fragment packets and TCP segmentation.
• confuses intrusion prevention systems
• packets reassembled by host device
• advanced evasion technique (AET)
• Stonesoft
• Finnish security company
• Vasburgh

Tech Review: Wednesday, October 12, 2011

Open-Source Software and Intellectual Property

• Opensource defies traditional IP models

Adding Users with 'sudo' Privileges in Linux

https://help.ubuntu.com/community/AddUsersHowto

• sudo adduser <username>
• sudo addgroup <groupname>
• sudo adduser <username> <groupname>

https://help.ubuntu.com/community/RootSudo

• run a pipe commands sudo
• sudo sh -c "ls > /root/somefile"
• sudo password is stored for 15 minutes
• password is not show on screen, even with *, it is input a each key stroke
• use 'gksudo' or kdesudo' to start graphical applicatons
• prevents file in home directory being owned by root
• gksudo "gnome-open %u"
• lets you drag and drop files as root
• login as another user
• sudo -i -u <username>
• to enable root
• sudo -i
• sudo passwd root
• re-disabling root account
• sudo passwd -dl root
• removing the password prompt for sudo
• sudo visudo
• add to the end of the file
• <username> ALL=NOPASSWD: ALL
• ^x to save file
• log out and in
• reset sudo to ask for password
• sudo -k

US drone fleet infected by virus

http://gcn.com/articles/2011/10/11/us-drone-fleet-infected-by-virus.aspx?s=gcndaily_121011

• keys stroke recorder
• Creech Air Force Base in Mojave Desert
• wipe from machines, but keeps coming back
• call to double drones by 2021
• 12 camera drones sharing data with troops on ground

Tech Review: Monday, October 10, 2011

C# null-coalescing operator

http://msdn.microsoft.com/en-us/library/ms173224.aspx

• From C# Reference for VS 2010
• example
• int? x = null;
• int y = x ?? -1;
• string s = null;
• Console.WriteLine (s ?? "Unspecified");
• used to define a default value for a nullable value type
• it returns the left-hand operand if it is not null; otherwise it returns the right operand

http://msdn.microsoft.com/en-us/library/1t3y8s4s.aspx

• more example from C# Programming Guide for VS 2010

http://stackoverflow.com/questions/278703/unique-ways-to-use-the-null-coalescing-operator

• not in Java, but some would like to add the feature

http://blog.joda.org/2009/01/java-7-null-default-and-null-safe_7527.html

• more about not in Java

http://www.merriam-webster.com/dictionary/coalescing

• coalescing mean "to grow together"
• does this sound like a good description of what the operator is doing?

Regions in Java

I know the above picture is not about 'Regions in Java' code, but it looked nice.

http://stackoverflow.com/questions/2344524/java-equivalent-to-region-in-c

• Basically, there are no region pre-compiler directives in Java
• There is support in some IDEs
• NetBeans
• // <editor-fold defaultstate="collapsed" desc="Your Fold Comment">
• ...
• // <editor-fold>
• Eclipse
• does it automatically for methods, imports, etc.
• Not declaration like in NetBeans
• Could you add one?
• Emacs?

Velocity Android 2.0 Internet Table 7" $100

http://www.tigerdirect.com/applications/searchtools/item-Details.asp?EdpNo=7188918&sku=V266-3032

• almost what I want
• missing the camera
• Multi touch capacitive screen

Viewsonic gTablet 10.1" Android 2.2:  $270

http://www.tigerdirect.com/applications/searchtools/item-Details.asp?EdpNo=7212231&sku=V18-0020

• This is what I want except the price and Android version

Simple C# Program

http://www.csharp-station.com/Tutorials/Lesson01.aspx

• the main routine starts with a Capital 'M' in C#
• starts with a lower case 'm' in Java

Listeners and Events (Actions) in Java

http://download.oracle.com/javase/tutorial/uiswing/events/index.html

• lesson on writing event listeners

http://download.oracle.com/javase/tutorial/uiswing/events/intro.html

• action listener
• public class Beeper ... implements ActionListener {
• adding an action listener to something
• button.addActionLisener ( new Beeper() )
• implement the method that does the action
• public void actionPerformed (ActionEvent e) {

http://download.oracle.com/javase/tutorial/uiswing/examples/events/BeeperProject/src/events/Beeper.java

• complete Beeper example

Java Color Map

http://www.ee.columbia.edu/~ronw/code/MEAPsoft/doc/html/ColorMap_8java-source.html

• color map in java
• Copyright
• Carnegie Mellon
• Sun
• Mitsubishi

Java List Interface and ArrayList Class

http://download.oracle.com/javase/6/docs/api/java/util/List.html

• Interface List <E>

http://download.oracle.com/javase/6/docs/api/java/util/ArrayList.html

• Class ArrayList<E>
• Example
• List list = Collections.synchronizedList (new ArrayList(...));

Java Collection Interface and Collections Class

http://download.oracle.com/javase/1,5.0/docs/api/java/util/Collection.html

• Interface Collection<E>

http://download.oracle.com/javase/1.4.2/docs/api/java/util/Collections.html

• static void sort (List list)
• reverse (List list)

Java Queue Interface and PriorityQueue Class

http://en.wikipedia.org/wiki/Queue_(abstract_data_type)

• new elements are put (enqueued) on the back of the queue
• element are pulled (dequeued) from the front of the queue
• First In First Out (FIFO)

http://download.oracle.com/javase/1,5.0/docs/api/java/util/Queue.html

• Interface Queue<E>
• offer (E o) // enqueue
• adds an element to the tail of the queue
• poll () // dequeue
• returns a removed element from the queue
• null is empty

http://download.oracle.com/javase/1,5.0/docs/api/java/util/PriorityQueue.html

• Class PriorityQueue<E>
• boolean add (E o)
• boolean offer (E o)
• E poll ()

Java Map Interface and HashMap Class

http://download.oracle.com/javase/tutorial/collections/interfaces/map.html

• tutorial

http://download.oracle.com/javase/6/docs/api/java/util/Map.html

• Interface Map<K,V>
• V put (K key, V value)
• V get (Object key)

http://download.oracle.com/javase/6/docs/api/java/util/HashMap.html

• Class HashMap<K,V>
• Example:
• Map m = Collections.synchronizedMap (new HashMap (...));

Chrome Remote Desktop

https://chrome.google.com/webstore/detail/gbchcmhmhahfdphkhkmpfmihenigjmpp

• BETA
• allow users to remotely access another computer through the Chrome browser or Chromebook
• An add on
• can easily miss the Icon after installation 

Tech Review: Sunday, October 9, 2011

WinMerge

http://winmerge.org/

• WinMerge 3
• Qt library
• window 
• linux
• Opensource

Repast Simphany Display

http://repast.sourceforge.net/docs/tutorial/SIM/2-04%20Custom%20Display%20Properties.html

• I think the above link might be old
• I really need to know a lot more about display in Repast-S