인프런 - 라이프타임 커리어 플랫폼

Learn about Permission, the most fundamental and important concept in Linux. This course provides a solid foundation of basic permission structures, then progressively covers advanced topics including special permissions (Set-UID, Set-GID, Sticky-bit) and ACL (Access Control List) that are essential in real-world practice. Through this course, you will accurately understand permission operation principles and exception cases, and systematically acquire the know-how for safe permission configuration and management in actual server operations. File and directory permission control is the starting point of Linux security. Master the entire process of permission management with this single course.

This course carefully selects the core systems that beginners must know in the vast field of information security. Instead of rigid theory, it's structured to help you intuitively understand system principles through clear analogies and practical examples. With this single course, you can grasp the big picture of information security systems as a whole and develop practical skills.

This is the most realistic and systematic job roadmap for beginners and novices in the information security field. Explore the 5 core job functions (planning, development, operations, assessment, monitoring) and learn how to become a strategic talent that companies seek first. End your vague concerns and design a clear career vision!

“Security solutions are numerous, but why can't threats still be stopped?” “Tools are overflowing but not interconnected, Warnings are pouring in, but aren't you missing what's truly important?” Now is the era when not just simple defense, but proactive and active 'action-oriented security' is needed. At its core is Microsoft's unified security. From ID, devices, apps, cloud, to infrastructure, connecting all security elements into one, AI detects, assesses, and eliminates threats in real time. Microsoft Security is not just a 'defense solution' but a real-time response system that protects the entire enterprise. Now, don't regret it after an incident occurs. Start security 'in advance', 'proactively', and 'smartly' with the Microsoft unified security platform, starting today.

This lecture is designed for understanding even if you have no prior knowledge of what Secure Coding (Security Coding) is. After covering basic security coding concepts, it focuses on web service security. This was a special lecture presented under the auspices of OO University. It presents over 160 source codes with rich comments, pinpointing core topics and techniques immediately applicable in practice.