CAPTCHA can quickly and easily protect your web application against brute force and bot attacks or abuse. There are just a few simple steps to a CAPTCHA implementation in Java/JSP. The solution is simple and the documentation is quite clear, so I only provide the steps and quick links to those resources. Step 1: Signup for a CAPTCHA account and generate keys for your website domains. /recaptcha and signup for an account. After obtaining a login, generate keys for your domain. Step 2: Find the developers guide for CAPTCHAFrom here, you'll find all the information you need. Notice in the left hand menu, there's a Java/JSP Plugin link available. Step 3: Download the Java/JSP Plugin and Implement /apis/recaptcha/docs/java.html where you will find a link to download the plugin, which is a set of Java classes. Extract the source files into your web applications java source tree. The directions on the page are extremely straight forward. The form page looks like:

You also may be using reCaptcha over https. Houses For Sale Ebrington Avenue Solihull When the form is submitted, the reCaptcha entries can be verified easily.Rabbit Air Purifier Coupons Step 4: Give the JVM a time interval to refresh its DNS cacheHp G72 Laptop Drivers Windows 7 By default the Java Virtual Machine (JVM) caches all DNS lookups forever instead of using the time-to-live (TTL) value which is specified in the DNS record of each host. To fix this issue for good, you can pass -Dsun.net.inetaddr.ttl=30 to your app-server (this tells Java to only cache DNS for 30 seconds). There is a great article on the JVM and DNS caching. The steps above are quick and easy to implement, post back and let me know if you have any issues with the implementation and I will try and assist.

For many front end developers, JavaScript was their first taste of a scripting and/or interpretive language. To these developers, the concept and implications of loosely typed variables may be second nature. However, the explosive growth in the demand for Web 2.0-ish applications has resulted in a growing number of back end developers that have had to dip their feet into pool of client side technologies. Many of these developers are coming from a background in strongly typed languages, such as C# and Java, and are unfamiliar with both the freedom and the potential pitfalls involved in working with loosely typed variables. Since the concept of loose typing is so fundamental to scripting in JavaScript, an understanding of it is essential. This article is a top level discussion of loose typing in JavaScript. Since there may be subtle differences in loose typing from language to language, let me constrain this discussion to the context of JavaScript. OK, let's dig in... What is Loose Typing?

Well, this seems like a good place to start. It is important to understand both what loose typing is, and what loose typing is not. Loose typing means that variables are declared without a type. This is in contrast to strongly typed languages that require typed declarations. Consider the following examples: Notice that in the JavaScript example, both a and b are declared as type var. Please note, however, that this does not mean that they do not have a type, or even that they are of type "var". Variables in JavaScript are typed, but that type is determined internally. In the above example, var a will be type Number and var b will be type String. These are two out of the three primitives in JavaScript, the third being Boolean. JavaScript also has other types beyond primitives. The type diagram for JavaScript is as follows (as per Mozilla): Ya really - Null and Undefined too. Note, however, that this distinction between primitives and objects will be dismissed in JavaScript 2.0.

You can read more about that here. Type coercion is a topic that is closely associated with loose typing. Since data types are managed internally, types are often converted internally as well. Understanding the rules of type coercion is extremely important. Consider the following expressions, and make sure you understand them: In the examples above, arithmetic is carried out as normal (left to right) until a String is encountered. From that point forward, all entities are converted to a String and then concatenated. Type coercion also occurs when doing comparisons. You can, however, forbid type coercion by using the === operator. There are methods to explicitly convert a variable's type as well, such as parseInt and parseFloat (both of which convert a String to a Number). Double negation (!!) can also be used to cast a Number or String to a Boolean. Consider the following example: This obviously is not a definitive reference to loose typing in JavaScript (or type coercion for that matter).

I do hope, however, that this will be a useful resource to those who are not familiar with these topics, and a good refresher for those who already are. I have tried to insure that the above is accurate, but if you notice anything incorrect, please let me know! And as always, thanks for reading!MBTA Transit Police Academy Today, December 18th, 2012 at 11:00 am, the MBTA Transit Police Academy will graduate the 30th Municipal Police Officers Class (MPOC) at the historic Fanueil Hall in Boston. The class will graduate 41 new police officers who will serve within the following police departments: MBTA Transit Police, Ashland, Boston University, Bourne, Braintree, Chlemsford, Cohasett, Dedham, Dover, Foxborough, Hull, Medford, Saugus, Sharon, Tufts University, Walpole, Waltham, Watertown, Wellesley and Woburn. The public and media are invited to attend this special day for the graduates, their families and the communities in which they will serve. 30th MPOC/MBTA Transit Police Academy

The MBTA Transit Police Academy has earned a reputation for producing the finest police officers in the state. This reputation has been built through dedication and commitment. The MBTA Transit Police Academy opened in 1998 and has graduated more than 1,000 police officers. It is structured and approved by the Municipal Police Training Committee (MPTC) guidelines as mandated by MGL C. 41 s. 96B. The basic curriculum for police student officers is an 800 hour training and education program founded on four basic principles: integrity, the law, fitness and community/neighborhood policing. The MBTA Transit Police Academy instructs recruits for an additional 240 hours with an emphasis on community policing and juvenile interactions Recently the MBTA Transit Police Academy became the first Police Academy in the Commonwealth of Massachusetts to obtain accreditation from the Commission on Accreditation of Law Enforcement Agencies (CALEA). The program standards cover nine topic areas: (1) credentialing;

(3) direction and authority; (5) recruitment, selection, employment, and promotion; The CALEA Accreditation Process is a proven modern management model; once implemented, it presents the CEO, on a continuing basis, with a blueprint that promotes the efficient use of resources and improves service delivery—regardless of the size, type, or geographic location of the academy. The CALEA standards upon which the Public Safety Training Academy Accreditation Program is based reflect the current thinking and experience of training academy practitioners and accreditation experts. CALEA’s Standards for Public Safety Training Academies© and its Accreditation Program are seen as benchmarks for today’s public safety training programs. CALEA Accreditation requires an academy to develop a comprehensive, well thought out, uniform set of written directives. This is one of the most successful methods for reaching administrative and operational goals, while also providing direction to personnel.