CloudNet@ - Enterprise LLM Security Guide

This course covers the basics of Amazon EKS, an AWS-managed Kubernetes service, designed for beginner Amazon EKS users.

The era when AI simply answered questions is over. Now is the age of LLM Agents that make decisions and take action on their own. This beginner-friendly course lets you learn the core principles and structure of agents by implementing them firsthand in just 90 minutes of hands-on practice. With complex theory kept to a minimum and a code-focused approach, you’ll directly experience how AI makes decisions and uses tools. Go beyond prompt engineering and take your first step toward AI automation with us.

This is an extended Amazon EKS course covering a wide range of topics that Amazon EKS users should definitely know.

From the fundamentals of RAG (Retrieval-Augmented Generation) to the latest multimodal and agent-based RAG! This is a hands-on, practice-oriented course designed to be accessible even to those without a technical background. From paper reviews to practical code implementation, it is structured so that even beginners encountering RAG for the first time can follow along with ease.

Directly assess various threats that may arise in AWS security environments, and expand your security operations capabilities by experiencing monitoring, detection, and response processes through hands-on exercises and security scenarios.

AWS Cloud, Why Should You Learn Security? Now that cloud usage is becoming more common, what is the most basic thing to use the cloud? It is security. If you cannot prevent unauthorized access and leakage of data stored in the cloud, the damage that you and your company will face will be indescribable. To prevent such accidents, we will provide basic security knowledge for using Amazon's AWS cloud.

The purpose is to improve, compared with last year, awareness campaigns that are not defined in the regulations and often end merely with the distribution of promotional gifts, by referring to best practices from various organizations, given the current situation in which the performance of events and campaigns such as Information Security Day or Personal Information Protection Day, held monthly or annually, is gradually declining. These events must now move beyond gift-distribution activities organized by the Information Security Team and become events in which all employees participate and uphold security together. It is necessary to build mutual understanding through the establishment of a communication system for embedding security into the organization. Ultimately, employees must have a good understanding of information security and the Personal Information Protection Act so that the organization can realistically protect itself from hacking and insider threats. Since the departments other than the Security Team—including those responsible for commissioning various projects, managing entrusted service providers, controlling applications and security settings, planning various informatization projects, and conducting IT audits—are designated to take overall responsibility, the Security Team is distributing security-related tasks among the respective departments. However, the current situation is that each department is merely expressing dissatisfaction. This opportunity should therefore be used to move away from that situation, as internal consultative bodies alone are insufficient. Security-related scoring criteria must be reflected in the powerful personnel evaluation system. Through unannounced audits, those who fail to comply should be disciplined through pay reductions or suspension, while those who properly observe security requirements and demonstrate achievements in support of security should receive substantial financial rewards through an incentive system. Security must be embedded in the organization so that employees take the initiative themselves. Accordingly, department and individual evaluation KPIs should be adjusted through a report to the CEO under the direction of the CISO. In addition, through a system for designating department-level information security officers and personnel in charge, the organization should strengthen its human security framework against hacking and information leakage—including the leakage of documents managed by each department and the management of service providers—by providing position allowances for these responsibilities.

This is a hands-on introductory course for AWS cloud beginners that follows and learns basic AWS cloud network knowledge.

LLM: A pro quickly delivers core content, from essentials to practical tips!

Do you know the basics but feel overwhelmed when it comes to applying them in practice? Drawing on real-world experience, we make complex LLM architectures easy to understand.

This course teaches the fundamental theory of LLMs and the core technologies of LangChain and RAG. You can easily learn the latest AI technologies used in practice, starting with the basics of LLMs!

“Take the first step toward creating your own customized LLM with lightweight LoRA-based fine-tuning!” This course is an introductory hands-on course designed so that even those who are new to LLMs can follow along easily. With complex theory kept to a minimum, it guides you step by step through the entire process: loading a model → applying data → training → comparing results. In a short amount of time, you’ll directly experience the workflow of modern lightweight fine-tuning techniques such as LoRA and QLoRA, and gain an intuitive understanding of “how LLM fine-tuning actually works.” Even without extensive resources, experience the sense of accomplishment that comes from creating an LLM specialized for your own domain!

Explains why LLMs are needed, along with their technical background and basic concepts, for those responsible for LLM planning and LLM application planning.

The era of Physical AI, as mentioned by Jensen Huang in 2025, is coming—alongside Perception AI, Generative AI, and Agentic AI. Experience Physical AI firsthand, quickly and easily. Explore Physical AI using Hugging Face's LeRobot library and actual physical robots.

Build a WordPress 3-tier infrastructure from VPC to HTTPS in 8 steps using YAML templates instead of console clicks. Starting with an empty AWS account, this hands-on course builds security groups, RDS, EC2, ALB, and Route53 layer by layer, culminating in a reusable set of templates. Develop practical IaC skills, from template syntax and passing values between stacks to safe deletion order.

Records remain, and responsibility grows! Everything about digital ethics that protects the workplace This course explores digital hate, digital sex crimes, and the risks of using AI that can actually occur in the workplace through case-based stories, clearly explaining what the problems are and how to prevent and respond to them. It firmly establishes the standards of digital ethics that today’s employees—who communicate digitally and use AI as part of their everyday work—urgently need, including how to work while respecting one another in digital spaces and how to use AI more safely and responsibly.

This is a lecture [Certification and Practice (Security · Network), Security] prepared for beginners.

Starting from an empty VPC, you will build a three-tier architecture directly in the AWS Console by configuring subnets, routing, security groups, RDS, EC2, ALB, Route 53, and ACM. You will manually create a WordPress blog with HTTPS enabled on a real domain, gaining a solid understanding of network architecture and security principles while developing practical troubleshooting skills.

This course puts an end to operational vulnerabilities on Linux servers caused by incorrect permissions. Master file and directory permission control completely based on real-world practices.

This course covers the theory and practical examples of LLMs, based on <Fundamentals of Large Language Models, Quickly!> (Insight, 2025).