Cyber security

What I do? 🙂

17. 3. 2025Přemysl Lúa Černý

I am developing a system for the real-time detection of cyberattacks. From a programming perspective, this involves highly interesting data processing in real time. Incoming events, such as user logins…Continue readingWhat I do? 🙂

How to Deal with Cyberpoachers

15. 2. 2024Přemysl Lúa Černý

Dear friends, I have good news for you. From today on, you can download my little e-book called How to Deal with Cyberpoachers. It is available on my second page…Continue readingHow to Deal with Cyberpoachers

Algorithms Coding Cyber security Python & C Web server

Combining asynchronous with parallel: Boosting both I/O bound and CPU bound tasks

23. 6. 202223. 6. 2022Přemysl Lúa Černý

From the performance perspective, there can be two types of issues or bottlenecks. One of them occurs when there are too many inputs or outputs requested from the application, the…Continue readingCombining asynchronous with parallel: Boosting both I/O bound and CPU bound tasks

Algorithms Coding Cyber security Memory Python & C

How to store cyber security data using MMAP in C

8. 6. 2022Přemysl Lúa Černý

In the previous article, I described the importance of having fast access to a memory that is also being automatically persisted to the file system to use more space than…Continue readingHow to store cyber security data using MMAP in C

Coding Cyber security Databases Memory Python & C

Serializing structures and graphs with LevelDB

1. 6. 20221. 6. 2022Přemysl Lúa Černý

In cyber security, especially when detecting threats such as port scan, there are many algorithms that require quick serialization of relationships among objects. Imagine a graph, where each node represents…Continue readingSerializing structures and graphs with LevelDB

Algorithms Coding Cyber security Memory Python & C

Read and write operations for memory-heavy cyber security data using MMAP

31. 5. 20222. 6. 2022Přemysl Lúa Černý

I really enjoy living in the woodland area. You can walk for hours without meeting anyone, which helps to clear up your mind of the constant thinking and pictures it…Continue readingRead and write operations for memory-heavy cyber security data using MMAP