HTTP protocol (3) the use of browsers to view source code

When doing Web questions on CTF, it is recommended to use Firefox browser. Here are some common skills about browsers in the process of solving problems.

The first thing is to look at the source code. When doing Web topics, you often need to check the source code of the website, some flag is directly hidden in the source code, and some topics give hints and clues in the source code, so viewing the source code is usually the first step in doing Web questions.

Example 1:BugKu Web2

Http://123.206.87.240:8002/web2/

After opening the topic, look at the source code, flag directly in the source code.

Some topics have specially made restrictions to prohibit viewing the source code by right-clicking. In fact, in the address bar of the page that can normally view the source code, you can see that when viewing the source code, you can automatically add view-source:, in front of the URL, so you can bypass such restrictions in this way.