--- title: "IVAN YMAOH BOAKYE (@IYVAN) | Hashnode" description: "Vanny\"s Tech Journey. Read the latest articles by IVAN YMAOH BOAKYE on Hashnode." url: "https://hashnode.com/@IYVAN" --- @IYVAN # IVAN YMAOH BOAKYE @IYVAN · Joined November 2025 Vanny"s Tech Journey ### [Understanding Stateful vs Stateless Firewalls and NACLs in AWS: A Clear Guide](https://vannys-tech-journey.hashnode.dev/understanding-stateful-vs-stateless-firewalls-and-nacls-in-aws-a-clear-guide?utm_source=hashnode&utm_medium=feed) A stateful firewall tracks the state of connections. When it allows traffic in one direction, it automatically allows the return traffic. It remembers the entire session. AWS Security Groups are stateful. They only use allow rules, and they do not ne... 2 min read · [vannys-tech-journey.hashnode.dev](https://vannys-tech-journey.hashnode.dev/understanding-stateful-vs-stateless-firewalls-and-nacls-in-aws-a-clear-guide?utm_source=hashnode&utm_medium=feed) [Nov 14, 2025](https://hashnode.com/posts/understanding-stateful-vs-stateless-firewalls-and-nacls-in-aws-a-clear-guide/69178621c670c3960cf85661) ### [This article is part of my AWS learning journey where I break down complex concepts into simple explanations. Follow me for more](https://vannys-tech-journey.hashnode.dev/this-article-is-part-of-my-aws-learning-journey-where-i-break-down-complex-concepts-into-simple-explanations-follow-me-for-more?utm_source=hashnode&utm_medium=feed) Understanding AWS VPC Design: A Deep Dive into Public Subnet Routing While studying AWS networking, a detailed exploration was carried out on how a Virtual Private Cloud (VPC) is structured and how public subnets communicate with the internet. The fo... 5 min read · [vannys-tech-journey.hashnode.dev](https://vannys-tech-journey.hashnode.dev/this-article-is-part-of-my-aws-learning-journey-where-i-break-down-complex-concepts-into-simple-explanations-follow-me-for-more?utm_source=hashnode&utm_medium=feed) [Nov 13, 2025](https://hashnode.com/posts/this-article-is-part-of-my-aws-learning-journey-where-i-break-down-complex-concepts-into-simple-explanations-follow-me-for-more/691649bbb38e0c819d8452f3) ### [Hands-On with AWS S3 Encryption: Understanding How Your Data Stays Secure.](https://vannys-tech-journey.hashnode.dev/hands-on-with-aws-s3-encryption-understanding-how-your-data-stays-secure?utm_source=hashnode&utm_medium=feed) When working in the cloud, data security is one of the most critical responsibilities of any Cloud or DevOps Engineer. Today, I explored different Amazon S3 encryption methods by creating a bucket and uploading files using three distinct encryption o... 2 min read · [vannys-tech-journey.hashnode.dev](https://vannys-tech-journey.hashnode.dev/hands-on-with-aws-s3-encryption-understanding-how-your-data-stays-secure?utm_source=hashnode&utm_medium=feed) [Nov 11, 2025](https://hashnode.com/posts/hands-on-with-aws-s3-encryption-understanding-how-your-data-stays-secure/6913915770a6441535b1706a)