Journey of an IT Architect
A review of networking basics covering key concept from physical layer, to Data Link layer, and to Network Layer.
A field note of what I ended up doing to clean up an oversized git repository by removing unintended large file and purging commit history
A review of storage technologies on business continuity such as backup and archive technologies, Disaster recovery, RPO, RTO, SPOF, etc
A note of my own cheatsheet for vim that includes commands, shortcut keys and string manipulation and bookmarking techniques
A summary of cryptographics basics on Transport Layer Security (TLS), its implementation in Java and browsers, and common tools.
A note on how I prepared and passed the AWS DevOps exam for the first time, including the expected level of familiarity with each service
