This article explains how to build a server with FastAPI, Terraform, and Ansible in a automation workflow.It tell you about AWS provisioning, secure configuration with Ansible Vault, and app deployment with systemd services.
Following the previous article about Caesar cypher, here is a more complicated cypher invented by Lester Hill in 1929 using linear algebra to encrypt the messages.
The ciphers are the base of our security in the internet but not just the internet, in the ancient world already were the need to pass secret messages. This article is a short explanation of Caesar cypher.