When a user enters a website address (e.g., www.example.com) into a web browser, the system must resolve the domain name into an IP address before establishing a connection. This process, known as DNS resolution, involves multiple steps and caching mechanisms to optimize performance. Step-by-Step DNS Resolution Process DNS Cache Memory Update DNS caching is importand … Read more
MySQL replication is a powerful way to create a reliable and scalable database environment for Zabbix. One effective method for setting up replication is to use Percona XtraBackup, a robust tool that allows non-blocking backups of MySQL databases. Below is a step-by-step guide to achieve this. Prerequisites Step 1: Prepare the Master Database for Replication … Read more
In this post I am walking through the HTTPS transaction process starting from the ClientHello request until the encryption of real data. 1. TCP Handshake The client initiates a three-way TCP handshake with the server to establish a reliable communication channel: Once the TCP connection is established, the TLS handshake begins. 2. TLS Handshake Steps … Read more