A lecture where you can firmly learn the basics of reversing

I am enjoying your lectures.

I'll listen a bit more for now.

I will describe the pros and cons. This review was written after completing only the problems within the lecture content, without solving the CTF problems. [Pros] 1. Problems can be solved through a stable web environment. -> Previously, users had to set up environments individually using virtual machine images, which often led to environment-specific issues that prevented even attempting the problems. Knock-on has solved this issue through its problem-solving LMS. 2. Active community (Discord) -> Technical support for resolving issues encountered during problem-solving was extremely fast and satisfying thanks to active communication on Discord. -> I am especially grateful to yeonwoo and hongsam3 for their generous advice and support. 3. Web vulnerability problems across various fields -> While other environments often focus heavily on XSS or SQL Injection, Knock-on was great because it provided exposure to diverse environments and problems (e.g., SSTI, Race Condition, etc.). [Cons] 1. I wish there were higher difficulty problems for SQL Injection. -> For example, it would be good to have problems with a difficulty level where you have to extract table and column names one by one using Blind SQL Injection from SQL metadata (e.g., information_schema.schemata in MySQL). 2. (The biggest issue) The text in the solution videos was too small to see clearly, making it difficult to follow the problem-solving screen. I hope there is a review process before uploading solution videos.

It was beneficial because I could have fun learning while obtaining flags through the hands-on practice! ^^