Shulou(Shulou.com)06/01 Report--

Starting from today, I will explain the knowledge of network security in detail. I hope I can discuss and communicate with you.

Recommended PHP website Development Foundation course: PHP website vulnerability Mining (1): PHP basic knowledge explanation Please add a link description

Introduction to 0x01 web website

We browse all kinds of web pages on the Internet, all of which are interpreted by scripting language, which are basically divided into three layers, front end, back end and database.

The front end receives the data and gives it to the back end for processing. The back end connects to the database and interacts with the database. This is interspersed with all kinds of technology. We can introduce them in turn.

Introduction of 0x02 front-end technology

In recent years, the front-end technology is booming, n years ago the front-end technology is basically html + CSS + JavaScript, these years of development, the front-end technology has been varied, especially the accumulation of js technology framework, has been able to deal with the back-end, a complete replacement for part of the scripting language functions. Of course, all kinds of languages have their own advantages and development background, but the progress of front-end technology is largely due to the results of mobile Internet, the popularity of html5, the optimization of Android phone performance, and the development trend of mobile Internet has become irresistible. it is the basic requirement for programmers to adapt to technological changes and keep up with the development of technology. It is easy to master basic knowledge and learn new technology. Therefore, I advise you to lay a good foundation, not to build a high platform in the floating sand, but to establish your own knowledge system.

Explanation of 0x03 back-end Technology

Back-end processing is mainly divided into three categories, aspx, php, java these three technologies, each has its own characteristics, behind each language, there is a huge market foundation, according to their own needs, choose different development languages, the environment of aspx is more strict, and the scope of application of php and java is broader. We do not need to master only one language, if you are in the security or operation and maintenance industry, many times, these actually need to be mastered, each language has its own grammatical characteristics and different interface functions, after proficiency in a language, learning other languages must pay attention to analogy, do not start from scratch, save time!

Introduction to 0x04 database

The database part has always been the key part of various languages, and the addition, deletion, modification and query of data is also the most basic function of the system. The main databases on the market are mysql, sqlserver, oracle,sqlite and so on. The first three basically occupy more than 90% of the market share, and they are also the databases that we come into contact with most in the development. The core of the website is data, and all interactions are basically dealing with data. Because they are basically relational databases, the knowledge is basically universal, and the operation of the system is somewhat different, which needs to be studied separately, but there is little difference in grammar. Now the popular nosql foundation of web is also the focus of our attention!

Once again, I would like to recommend the course I made:

Recommended PHP website Development Foundation course: PHP website vulnerability Mining (1): PHP basic knowledge explanation Please add a link description

This time, we will first introduce these basic knowledge, and we will continue to share them later!

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