In order to verify whether the interface can be accessed normally, we often need to use testing tools to detect the data interface.
Benefits: The interface testing tool allows us to call and debug the interface without writing any code.
Download and install PostMan
First, download and install PostMan, please visit PostMan's official download website: https://www.getpostman.com/downloads/
After downloading the required installer, install it directly
The first time you open it, you will be asked to log in with your account and password. If you don’t have it, just close it. When you reopen it, you will automatically enter the interface that does not require an account and password to log in as shown in the figure below.
The next step is to create a new page, as shown below:
Use PostMan to test the GET interface
step:
(1) Choose the method of request
(2) Write the URL address of the request
(3) Fill in the parameters of the request
(4) Click the Send button to initiate a GET request
(5) View the result of the server response
Use PostMan to test the POST interface
Steps:
1. Select the request method
2. Fill in the URL address of the request
3. Select the Body panel and check the data format
4. Fill in the data to be sent to the server
5. Click the Send button to initiate a POST request
6. View the result of the server response
The only difference is the third step: select the Body panel and check the data format, and the rest of the steps are the same
Note: If you want to change the language to Chinese through postman itself, don’t even think about it. After installation, select file>settings to enter, you can see all the tabs option bar, there is no language setting. Of course, there are other green Chinese versions, but if you use it improperly, there will be problems, so it is not recommended to use it. Generally speaking, this diagram is so detailed, I believe it is very simple for everyone to use.
Registration and login steps
step:
1. If you do not have an account, you need to click the registration button Create Account in the upper right corner, and if you have an account, click the login button Sign In
2. After registering an account, click to enter the interface as shown in the figure below:
3. Enter the relevant information, click Create free account and the registration will jump to the interface as shown in the figure:
4. At this time, you can click use authorization token to sign in to jump to the location of the picture below:
5. Copy the code back to the postman interface and paste it at the position required by sign in.
If you have an existing account, it is very simple to log in directly. According to the instructions on the page, enter the relevant information and it will be displayed as shown in the figure below. You will receive an email confirmation for the first login.
If there is anything you don't understand, you can leave a message in the comment area to ask questions
Digression
Many people who are new to the computer industry or graduates of computer-related majors have encountered obstacles everywhere due to lack of practical experience. Let's look at two sets of data:
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The 2023 national college graduates are expected to reach 11.58 million, and the employment situation is severe;
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According to the data released by the National Network Security Publicity Week, by 2027, the shortage of network security personnel in my country will reach 3.27 million.
On the one hand, the employment situation of fresh graduates is severe every year, and on the other hand, there is a gap of one million cyber security talents.
On June 9, the 2023 edition of the Employment Blue Book of MyCOS Research (including the 2023 Employment Report for Undergraduates in China and the Employment Report for Higher Vocational Students in China in 2023) was officially released.
Top 10 Majors with Higher Monthly Salary for 2022 College Graduates
The monthly income of undergraduate computer science majors and higher vocational automation majors is relatively high. The monthly income of the 2022 class of undergraduate computer science and higher vocational automation majors is 6,863 yuan and 5,339 yuan, respectively. Among them, the starting salary of undergraduate computer majors is basically the same as that of the 2021 class, and the monthly income of higher vocational automation majors has increased significantly. The 2022 class of overtaking railway transportation majors (5295 yuan) ranks first.
Specifically, depending on the major, the major with a higher monthly income for undergraduates in 2022 is information security (7579 yuan). Compared with the class of 2018, undergraduate majors related to artificial intelligence such as electronic science and technology, automation, etc. performed well, and their starting salaries increased by 19% compared with five years ago. Although data science and big data technology are new majors in recent years, they have performed well, and have ranked among the top three majors with higher monthly income half a year after graduation for the class of 2022 undergraduates. The only humanities and social science major that entered the top 10 undergraduate high-paying list five years ago-French has dropped out of the top 10.
"There is no national security without cybersecurity". At present, network security has been elevated to the height of national strategy and has become one of the most important factors affecting national security and social stability.
Characteristics of the network security industry
1. The employment salary is very high, and the salary rises quickly. In 2021, Liepin.com released the highest employment salary in the network security industry, which is 337,700 yuan per capita!
2. There is a large talent gap and many employment opportunities
On September 18, 2019, the official website of the "Central People's Government of the People's Republic of China" published: my country needs 1.4 million cyberspace security talents, but schools across the country train less than 1.5 million people each year. Liepin.com's "Cyber Security Report for the First Half of 2021" predicts that the demand for cyber security talents will be 3 million in 2027, and there are only 100,000 employees currently engaged in the cyber security industry.
The industry has a lot of room for development and many jobs
Since the establishment of the network security industry, dozens of new network security industry positions have been added: network security experts, network security analysts, security consultants, network security engineers, security architects, security operation and maintenance engineers, penetration engineers, information security management Data Security Engineer, Network Security Operations Engineer, Network Security Emergency Response Engineer, Data Appraiser, Network Security Product Manager, Network Security Service Engineer, Network Security Trainer, Network Security Auditor, Threat Intelligence Analysis Engineer, Disaster Recovery Professional , Actual combat offensive and defensive professionals...
Great career potential
The network security major has strong technical characteristics, especially mastering the core network architecture and security technology in the work, which has an irreplaceable competitive advantage in career development.
With the continuous improvement of personal ability, the professional value of the work will also increase with the enrichment of one's own experience and the maturity of project operation, and the appreciation space is bullish all the way, which is the main reason why it is popular with everyone.
To some extent, in the field of network security, just like the doctor profession, the older you are, the more popular you become. Because the technology becomes more mature, the work will naturally be valued, and promotion and salary increase are a matter of course.
How to Learn Hacking & Cyber Security
Today, as long as you give my article a thumbs-up, I will share my private collection of online security learning materials with you for free, so let’s see what is there.
1. Learning Roadmap
There are also many things to learn in attack and defense. I have written all the specific things to learn in the roadmap above. If you can learn them, you will have no problem getting a job or taking private jobs.
2. Video Tutorial
Although there are many learning resources on the Internet, they are basically incomplete. This is a video tutorial on cyber security recorded by myself. I have a supporting video explanation for every knowledge point in the above roadmap.
The content covers the study of network security law, network security operation and other guarantee assessment, penetration testing basics, detailed explanation of vulnerabilities, basic computer knowledge, etc., which are all learning contents that must be known when getting started with network security.
(It’s all packed into one piece and cannot be unfolded one by one. There are more than 300 episodes in total)
Due to limited space, only part of the information is shown, you need to click the link below to get it
CSDN spree: "Hacker & Network Security Introduction & Advanced Learning Resource Pack" free sharing
3. Technical documents and e-books
The technical documents are also compiled by myself, including my experience and technical points of participating in large-scale network security operations, CTF and SRC vulnerability mining. There are also more than 200 e-books. Due to the sensitivity of the content, I will not show them one by one.
Due to limited space, only part of the information is shown, you need to click the link below to get it
CSDN spree: "Hacker & Network Security Introduction & Advanced Learning Resource Pack" free sharing
4. Toolkit, interview questions and source code
"If you want to do a good job, you must first sharpen your tools." I have summarized dozens of the most popular hacking tools for everyone. The scope of coverage mainly focuses on information collection, Android hacking tools, automation tools, phishing, etc. Interested students should not miss it.
There is also the source code of the case and the corresponding toolkit mentioned in my video, which can be taken away if needed.
Due to limited space, only part of the information is shown, you need to click the link below to get it
CSDN spree: "Hacker & Network Security Introduction & Advanced Learning Resource Pack" free sharing
Finally, there are interview questions about Internet security that I have sorted out in the past few years. If you are looking for a job in Internet security, they will definitely help you a lot.
These questions are often encountered in interviews with Sangfor, Qi Anxin, Tencent or other major companies. If you have good questions or good insights, please share them.
Reference analysis: Sangfor official website, Qi Anxin official website, Freebuf, csdn, etc.
Content features: clear organization, including graphic representation, which is easier to understand.
Summary of content: Including intranet, operating system, protocol, penetration test, security service, vulnerability, injection, XSS, CSRF, SSRF, file upload, file download, file inclusion, XXE, logic vulnerability, tool, SQLmap, NMAP, BP, MSF…
Due to limited space, only part of the information is shown, you need to click the link below to get it
CSDN spree: "Hacker & Network Security Introduction & Advanced Learning Resource Pack" free sharing